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OBJECTIVE: The purpose of this study was to evaluate the clinical and functional outcomes in patients who underwent surgical treatment for rotator cuff tears using open and arthroscopic techniques, and to evaluate the direct costs involved. METHODS: Retrospective cohort study with analysis of the data of patients who were referred to two private hospitals in Sao Paulo, Brazil for surgical repair of the rotator cuff from January 2018 to September 2019. Clinical outcomes were assessed using functional scores (SPADI and QuickDASH) and a quality of life questionnaire (EuroQoL). Procedure costs were calculated relative to each hospital's costliest procedure. RESULTS: Data from 362 patients were analyzed. The mean patient age was 57 years (SD= 10.46), with a slight male predominance (53.9%). Arthroscopic procedures were more common than open procedures (95.6% versus 4.4%). Significant clinical improvement was reported in 84.8% of the patients. The factors associated with increased surgery costs were arthroscopic technique (increase of 29.2%), age (increase of 0.6% per year), and length of stay (increase of 18.9% per day of hospitalization). CONCLUSION: Rotator cuff repair surgery is a highly effective procedure, associated with favorable clinical outcomes and improvement in life quality, and low rates of complications. Arthroscopic surgery tends to be costlier than open surgery.

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INTRODUCTION: To evaluate the relationship between initial displacement in proximal humeral fractures and fatty degeneration of the rotator cuff measured by CT according to the Goutallier classification. MATERIAL AND METHODS: This cross-sectional observational study evaluated patients with proximal humeral fractures over a six-month period. The study included patients ≥ 18 years old with complete radiological views (anteroposterior, lateral, and Grashey) and a CT scan of the affected shoulder; previous fracture or ipsilateral shoulder surgery were excluded. Neer's classification system and Goutallier stages were used to evaluate the patients. Demographic data were collected and, two groups were analysed according to age (≤ 50 years and > 50 years). RESULTS: Sixty-two patients were included (m = 36, f = 26, ratio 1.3:1); seven patients were excluded. Male patients (36, 58.1%), patients older than 50 years (33, 53.2%) and a low-energy injury mechanism (36, 58.1%) were the most frequent cases. According to the Neer system, the most common proximal humerus fracture was fracture-dislocation in 17 (27.4%) cases. The most common stage in Goutallier's classification was I (some fatty streaks) in 22 (35.4%) cases. Younger patients (≤ 50 years) had more displaced fractures with low fatty degeneration (p = < 0.001) than older patients (> 50 years), who had minimally displaced fractures with greater fatty degeneration (p = 0.567). CONCLUSIONS: High-energy mechanisms are associated with younger patients and a more displaced fracture according to the Neer classification. Older patients had a more advanced Goutallier stage and lesser displaced fracture. We should consider a more aggressive approach in the treatment of non-displaced fractures in elderly patients, less conservative and more surgical management, to obtain a better clinical evolution after the treatment of these kinds of fractures. LEVEL OF EVIDENCE: IV.

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The objective of this study was to investigate how Brazilian physical therapists (PTs) use therapeutic exercises in the rehabilitation of individuals with rotator cuff (RC) tendinopathy. The study used an online survey with a mix of 62 open- and closed-ended questions divided into three sections: participant demographics, professional experience, and clinical practice in the rehabilitation of patients with RC tendinopathy. One hundred and fifty-nine Brazilian physical therapists completed the survey. Most of our sample recommended isometric exercises (69.9%) in the initial phase of rehabilitation and eccentric exercises (47.4%) in the advanced phase. However, there was a wide variability in determining the volume of exercises, particularly with isometric exercises. Most of our sample considered patient comfort and pain levels when adjusting exercise intensity, regardless of exercise type. The majority (48.40%) recommended weekly reassessment and modification of exercises. Additionally, despite pain being a key factor for discharge and the primary adverse effect of exercise, most of our sample would not discontinue exercises in case of pain during the early and late phases of rehabilitation. Despite the lack of consensus on some aspects, the clinical practice of our sample is in line with the current literature and practice in other countries. However, further research and implementation are crucial to enhance future rehabilitation outcomes, including exploring the exercise training volume, the safety and effectiveness of exercising with pain and identifying the optimal pain level for best results.

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BACKGROUND: Whether the use of PRP as an adjuvant of rotator cuff repairs leads to improved tendon healing and better functional outcomes remains unclear in clinical evidence. PURPOSE: The main purpose of this study was to assess whether the use of leukocyte-poor platelet-rich plasma (LP-PRP) as an adjuvant to arthroscopic rotator cuff repair (ARCR) decreases the rate of retears compared with a control group. The secondary objective was to analyze whether LP-PRP improves patient-reported outcomes. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: This was a double-blind randomized controlled trial at a single center. A consecutive series of 96 patients with rotator cuff tears <3 cm were enrolled and randomly allocated to the control group (double-row suture-bridge ARCR alone [n = 48]) and the PRP group (double-row suture-bridge repair, followed by 1 LP-PRP injection during surgery [n = 48]). The visual analog scale (VAS) for pain, the American Shoulder and Elbow Surgeons (ASES) score, the Single Assessment Numeric Evaluation (SANE), and the Pittsburgh Sleep Quality Index (PSQI) were administered preoperatively and at 6- and 12-month follow-up. Magnetic resonance imaging (MRI) was performed to evaluate tendon integrity at 6-month follow-up. Both patients and assessors were blinded to the intervention received during surgery. RESULTS: The mean patient age was 56.1 ± 2.98 years. Of the 96 patients, 90 had MRI performed at 6 months after surgery (94% radiological follow-up). The retear rate in the PRP group was 15.2% (7/46 [95% CI, 6%-28%]), which was lower than that in the control group of 34.1% (15/44 [95% CI, 20%-49%]) (P = .037). Therefore, the risk ratio of ruptures in patients exposed to LP-PRP was 0.44 (95% CI, 0.2-0.9; P = .037). Overall, the ASES, VAS, SANE, and PSQI scores showed a statistical improvement after surgery (P < .001). There were no significant differences in functional scores between the groups. Most of the patients exceeded the minimal clinically important difference for the ASES, SANE, and VAS without significant differences between the groups. CONCLUSION: In patients with rotator cuff tears <3 cm undergoing double-row suture-bridge repair, a 5-mL dose of LP-PRP injected at the tendon-bone interface significantly reduced the retear rate. However, the use of LP-PRP in terms of postoperative pain and patient-reported outcomes failed to show clinically meaningful effects. REGISTRATION: NCT04703998 (ClinicalTrials.gov identifier).

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BACKGROUND: For evidence-based practice, clinicians and researchers can rely on well-conducted randomized clinical trials that exhibit good methodological quality, provide adequate intervention descriptions, and implementation fidelity. OBJECTIVE: To assess the description and implementation fidelity of exercise-based interventions in clinical trials for individuals with rotator cuff tears. METHODS: A systematic search was conducted in PubMed, Embase, CINAHL, LILACS, Cochrane Library, Web of Science, SCOPUS and SciELO. Randomized clinical trials that assessed individuals with rotator cuff tears confirmed by imaging exam were included. All individuals must have received an exercise-based treatment. The methodological quality was scored with the Physiotherapy Evidence Database (PEDro) scale. The Template for Intervention Description and Replication (TIDieR) checklist and the National Institutes of Health Behaviour Change Consortium (NIHBCC) were used to assess intervention description and implementation fidelity, respectively. RESULTS: A total of 13 studies were included. Despite their adequate methodological quality, the description of the intervention was poor with TIDieR scores ranging from 6 to 15 out of 24 total points. The TIDieR highest-scoring item was item 1 (brief name) that was reported in all studies. Considering fidelity, only one of the five domains of NIHBCC (i.e., treatment design) reached just over 50%. CONCLUSION: Exercise-based interventions used in studies for individuals with rotator cuff tears are poorly reported. The description and fidelity of the intervention need to be better reported to assist clinical decision-making and support evidence-based practice.

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INTRODUCTION: The aim of this study was to estimate the incidence of stiffness during the first 6 months after rotator cuff repair and to evaluate postoperative stiffness with respect to its risk factors and its influence on the outcome at 6 months postoperatively. METHODS: In a prospective cohort of 117 patients (69 women, 48 men; average age 59) from our institutional rotator cuff registry, who underwent either arthroscopic (n = 77) or open (n = 40) rotator cuff repair, we measured shoulder range of motion (ROM) at 3 and 6 months post-surgery. We evaluated the incidence of stiffness and analyzed functional outcomes, comparing various preoperative and intraoperative factors in patients with stiffness to those without at the 6-month mark. RESULTS: Shoulder stiffness was observed in 31% of patients (36/117) at 3 months postoperatively, decreasing to 20% (23/117) at 6 months. No significant link was found between stiffness at 6 months and demographic factors, preoperative stiffness, tear characteristics, or the type of repair. Notably, patients undergoing arthroscopic repair exhibited a 4.3-fold higher risk (OR 4.3; 95% CI 1.2-15.6, p = 0.02) of developing stiffness at 6 months compared to those with mini-open repair. Despite these differences in stiffness rates, no significant variation was seen in the American Shoulder and Elbow Surgeons (ASES) score, Single Assessment Numeric Evaluation (SANE) score, or Visual Analog Scale (VAS) scores at 6 months between the groups. CONCLUSION: The incidence of postoperative shoulder stiffness following rotator cuff repair was substantial at 31% at 3 months, reducing to 20% by 6 months. Mini-open repair was associated with a lower 6-month stiffness incidence than arthroscopic repair, likely due to variations in rehabilitation protocols. However, the presence of stiffness at 6 months post-surgery did not significantly affect functional outcomes or pain levels.

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BACKGROUND AND PURPOSE: To assess the effects of a rehabilitation protocol of rotator cuff (RC) isometrics coupled with traditional shoulder exercises on patient-rated outcomes, muscle strength, and electromyographic activity in individuals with RC tendinopathy. METHODS: Eleven individuals (8 women and 3 men, 37.9 ± 5.6 years) with RC tendinopathy performed isometric RC exercises in combination with scapular muscle stretching and strengthening for 6 weeks. Treatment effects were assessed with patient-rated pain and shoulder function, isometric muscle strength, electromyographic activity during arm elevation and internal and external shoulder rotation, and pain during arm elevation before and at the end of the first session, and after 6 weeks of intervention. RESULTS: There were improvements in pain and shoulder function, increased isometric muscle strength for arm elevation and internal rotation, increased muscle activity of the infraspinatus and serratus anterior, and reduced pain during arm elevation after 6 weeks of intervention. DISCUSSION: This case report showed improvements on pain and function, increases on isometric strength of the shoulder and on electromyographic activity of the serratus anterior and infraspinatus muscles, as well as decreases on pain during arm elevation, after a 6-week intervention of RC isometric exercises associated with scapular muscle stretching and strengthening in patients with RC tendinopathy.

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BACKGROUND: Reverse shoulder arthroplasty (RSA) is a valuable treatment for rotator cuff arthropathy (RCA) in developed regions. Socioeconomic issues impact access to specialized care and there is a lack of data on RSA outcomes in developing regions. We present our 24-month follow-up on RSA surgeries to treat RCA in our low-income population. METHODS: Prospective evaluation of 26 patients subjected to RSA at Hospital Geral de Fortaleza-CE, Brazil, between January 2018 and December 2020. Literacy [>/≤ 8 school years(SY)] and income were documented. Outcomes considered pain (visual analogue scale; VAS) as well as SSV, SPADI, ASES, and UCLA scoring, and range of motion [forward flexion (FF); external rotation (ER)]. RESULTS: Patients were 68.5 ± 7.6 years-old with 16(61.5%) females; 65% had hypertension and 7 (26.9%) had diabetes. Over 90% declared < 900.00 US$ monthly family earnings and 10 (38.4%) patients declared ≤8 SY with > 80% exerting blue-collar jobs. Pain showed a significant reduction from baseline (8 ± 2) to 24 months (2.1 ± 2.3; p < 0.001). UCLA (10.3 ± 5.6 and 28.6 ± 7.2), ASES (16.7 ± 10.8 and 63.1 ± 28.4), SSV (326 ± 311 and 760 ± 234), and SPADI (98.3 ± 26.5) scores significantly improved from baseline to 24 months, achieving minimal clinically important difference. FF (89.2° ± 51.2° to 140.6 ± 38.3°) and ER (19.2° ± 22.5 to 33.4° ± 20.6°) significantly improved from baseline to 24 months (p = 0.004 and 0.027, respectively). There were 5 non-serious adverse events with one surgical revision. All patients returned to daily life activities. CONCLUSION: This is the first outcome report 2 years following RSA in a low-income population. Data indicate this procedure is justifiable regardless of socioeconomic issues.

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INTRODUCTION: Return to sport is an important measure of treatment success for athletes undergoing rotator cuff repair, which can be challenging in older athletes. The purpose of the present study was to systematically review and summarize the literature regarding the return to sport in athletes older than 35 years undergoing rotator cuff repair. MATERIALS AND METHODS: A systematic review of the literature was performed following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The electronic databases of PubMed, MEDLINE, and Cochrane were used for the literature search. Studies in English evaluating return to sport after repair of partial- or full-thickness rotator cuff tears among athletes older than 35 years of all levels and sports were included. RESULTS: Four studies of level III and IV were included in this review, with a total of 140 athletes. Both full- and partial-thickness rotator cuff tears were described and managed via acromioplasty combined with open or arthroscopic repair using single or double-row suture. Of the 140 athletes, 122 returned to sports, with 102 returning to equal or higher level pre-injury. The lower mean time to return to sport among the studies included was 6.3 months. CONCLUSIONS: Although the evidence is limited, rotator cuff tear should not be seen as a mandatory reason for the retirement of older athletes. Of the 140 athletes included in this review, 122 returned to sport, with 102 returning to equal or higher level pre-injury.

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BACKGROUND: This study aims to analyze the mid-to long-term results of the latissimus dorsi tendon for the treatment of massive posterosuperior irreparable rotator cuff tears as reported in high-quality publications and to determine its efficacy and safety. METHODS: A systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, Scopus, and EMBASE databases were searched until December 2022 to identify studies with a minimum 4 year follow-up. Clinical and radiographic outcomes, complications, and revision surgery data were collected. The publications included were analyzed quantitatively using the DerSimonian Laird random-effects model to estimate the change in outcomes from the preoperative to the postoperative condition. The proportion of complications and revisions were pooled using the Freeman-Tukey double arcsine transformation. RESULTS: Of the 618 publications identified through database search, 11 articles were considered eligible. A total of 421 patients (432 shoulders) were included in this analysis. Their mean age was 59.5 ± 4 years. Of these, 277 patients had mid-term follow-up (4-9 years), and 144 had long-term follow-up (more than 9 years). Postoperative improvements were considered significant for the following outcome parameters: Constant-Murley Score (0-100 scale), with a mean difference (MD) = 28 points (95% confidence interval [CI] 21, 36; I2 = 89%; P < .001); visual analog scale, with a standardized MD = 2.5 (95% CI 1.7, 3.3; P < .001; I2 = 89%; P < .001); forward flexion, with a MD = 43° (95% CI 21°, 65°; I2 = 95% P < .001); abduction, with a MD = 38° (95% CI 20°, 56°; I2 = 85%; P < .01), and external rotation, with a MD = 8° (95% CI 1°, 16°; I2 = 87%; P = .005). The overall reported mean complication rate was 13% (95% CI 9%, 19%; I2 = 0%), while the reported mean revision rate was 6% (95% CI: 3%, 9%; I2 = 0%). CONCLUSIONS: Our pooled estimated results seem to indicate that latissimus dorsi tendon transfer significantly improves patient-reported outcomes, pain relief, range of motion, and strength, with modest rates of complications and revision surgery at mid-to long-term follow-up. In well-selected patients, latissimus dorsi tendon transfer may provide favorable outcomes for irreparable posterosuperior cuff tears.

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Abstract Objective: To evaluate the influence of radiographic values on clinical and functional results in patients treated with reverse arthroplasty for rotator cuff arthropathy (RCA) using a lateralized design. Methods: A retrospective analysis was performed. Patient demographics were recorded, as well as preoperative and postoperative range of motion. Function was calculated using the Constant-Murley score both before and after the procedure. Pre and postoperative anteroposterior and axial radiographs of the affected shoulder were analysed. In the preoperative images, the following was calculated: acromiohumeral distance (AHD) and lateral humeral offset (LHO). Postoperative measurements included: AHD, LHO, distalization shoulder angle (DSA) and lateralisation shoulder angle (LSA). Linear regression and quadratic regression analysis was performed to determine their degree of association with final functional outcomes. By applying a quadratic regression analysis and ROC curves, the cut-off values were determined with respect to the above-mentioned angles and the VPP was calculated. Results: The greater anterior elevation (AE) ranges were found with DSA between 40-45° and LSA among 80°- 90°, while better ABD was observed with LSA of 90-100°. Preoperative AHD was correlated to RE (rs:0.47; p:0.049). Postoperative AHD was found to be in a directly proportional relationship with AE (rs:0.49; p:0.03). Postoperative ABD showed an inverse linear regression with preoperative AHD (rs: -0.44, p:0.047). LSA and DSA were inversely related. Conclusion: We found that a DSA between 40-45° and a LSA of 80-100° could lead to better range of motion regarding AE and ABD in patients with rotator cuff arthropathy treated with RSA.

Resumo Objetivo: Avaliar a influência dos valores radiográficos nos resultados clínicos e funcionais em pacientes tratados com artroplastia reversa para artropatia do manguito rotador utilizando um desenho lateralizado. Métodos: Foi realizada uma análise retrospectiva. Foram registradas as demografias dos pacientes, bem como o intervalo de movimento pré-operatório e pós-operatório. A função foi calculada usando a pontuação Constant-Murley tanto antes como depois do procedimento. Radiografias pré e pós-operatórias anteroposteriores e axiais do ombro afetado foram analisadas. Nas imagens pré-operatórias, foram calculados a distância acromioumeral (DAU)e offset lateral umeral (OLU). As medidas pós-operatórias incluídas foram DAU, OLU, ângulo de distalização do ombro (ADO) e ângulo de lateralização do ombro (ALO). Foi realizada uma análise de regressão linear e regressão quadrática para determinar seu grau de associação com os resultados funcionais finais. Aplicando uma análise de regressão quadrática e curvas ROC, os valores de corte foram determinados em relação aos ângulos acima mencionados e o valor preditivo positivo foi calculado. Resultados: As maiores faixas de elevação anterior (EA) foram encontradas com ADO entre 40 e 45° e ALO entre 80 e 90°, enquanto a melhor abdução (ABD) foi observada com ALO de 90 e 100°. A DAU pré-operatória foi correlacionada com a rotação externa (RE) (rs: 0,47; p: 0,049). A DAU pós-operatória apresentou uma relação diretamente proporcional com a EA (rs: 0,49; p: 0,03). A ABD pós-operatória mostrou uma regressão linear inversa com a DAU pré-operatória (rs: -0,44, p: 0,047). O ALO e o ADO estavam inversamente relacionados. Conclusão: Determinamos que um ADO entre 40 e 45° e um ALO de 80 e 100° poderia levar a uma melhor amplitude de movimento em relação à EA e ABD em pacientes com artropatia do manguito rotador tratados com artroplastia reversa de ombro.

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INTRODUCTION: Rotator cuff tendinopathy is a common shoulder disorder in which the primary treatment is resistance exercises. Isometric exercises are being studied for lower limb tendinopathies but not for rotator cuff tendinopathy. This protocol for a randomized clinical trial aims to compare the effects of two types of exercise (isometric and isotonic) on shoulder pain, functioning, muscle strength, and electromyographic activity in individuals with rotator cuff tendinopathy. METHODS: Forty-six individuals (18 to 60 years old) with shoulder pain for more than three months and unilateral supraspinatus and/or infraspinatus tendinopathy will participate in this trial. Individuals will be randomized into two exercise groups: isometric or isotonic. The following outcomes will be evaluated before and after the first session and after six weeks of intervention: shoulder pain and functioning; isometric strength of shoulder elevation and lateral and medial rotation; and electromyographic activity of medial deltoid, infraspinatus, serratus anterior, and lower trapezius. Groups will perform stretching and strengthening of periscapular muscles. The isometric group will perform three sets of 32 s, at 70% of maximal isometric strength. The isotonic group will perform concentric and eccentric exercises (2 s for each phase) in three sets of eight repetitions at a load of eight repetition maximum. The total time under tension of 96 s will be equal for both groups, and load will be adjusted in weeks three and five of the protocol. Treatment effect between groups will be analyzed using linear mixed model. TRIAL REGISTRATION: Trial registration number: Universal Trial Number (UTN) code U1111-1284-7528 and Brazilian Clinical Trials Registry platform-RBR-3pvdvfk.

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Background: Rotator cuff injury occurs over tendons that insert into the humeral tuberosity. Ultrasonography detects the size and extent of tendon tears. Its sensitivity and specificity range from 91-100% and 85-86%, respectively. It has been shown that a trained orthopedic surgeon can perform shoulder ultrasonography for the accurate diagnosis of rotator cuff pathology. Objective: To determine the concordance between ultrasound-arthroscopy of the shoulder in rotator cuff injuries at the Unidad Médica Atención Ambulatoria No. 55 (Ambulatory Care Unit No. 55) in León, Guanajuato, Mexico. Material and methods: Experimental study of a sample of 37 patients with a diagnosis of rotator cuff injury, in whom preoperative ultrasound and later shoulder arthroscopy of the same side were performed. The data were subjected to concordance with Cohen's Kappa Index. Results: There were 37 patients in whom we identified an overall concordance of 81%. Cohen's Kappa index was 0.76, considered a good concordance. Out of the 7 patients without correlation, in 1 patient the ultrasound showed partial rupture and by arthroscopy showed complete rupture of the supraspinatus. In 2 patients ultrasonography showed complete rotator cuff tear; during arthroscopy, both showed massive rotator cuff tear. Conclusions: Preoperative shoulder ultrasonography performed by traumatology presents a good concordance in the diagnosis of rotator cuff tears confirmed by arthroscopy.

Introducción: la lesión del mango rotador ocurre sobre tendones que se insertan en la tuberosidad humeral. La ecografía detecta el tamaño y la extensión de los desgarros del tendón. Su sensibilidad y especificidad oscila entre 91-100% y 85-86%, respectivamente. Se ha demostrado que un cirujano ortopédico capacitado puede hacer la ecografía del hombro para el diagnóstico preciso de la patología del manguito rotador. Objetivo: determinar la concordancia entre ecografía-artroscopía de hombro en lesiones del mango rotador en la Unidad Médica Atención Ambulatoria No. 55 de León, Guanajuato, México. Material y métodos: estudio experimental de una muestra de 37 pacientes con diagnóstico de lesión del mango rotador, en los que se realizó ecografía preoperatoria y posteriormente artroscopía de hombro del mismo lado. Los datos se sometieron a concordancia con el Índice de Kappa de Cohen. Resultados: fueron 37 pacientes en los que se identificó la concordancia global de 81%. El Índice de Kappa de Cohen fue de 0.76, considerada una buena concordancia. De los 7 pacientes sin correlación, en un paciente la ecografía mostró rotura parcial y por artroscopía mostró rotura completa del supraespinoso. En 2 pacientes la ecografía mostró rotura completa de mango rotador; durante la artroscopía, ambos mostraron rotura masiva del mango rotador. Conclusiones: la ecografía preoperatoria de hombro realizada por traumatología presenta una buena concordancia en el diagnóstico de roturas del mango rotador confirmadas por artroscopía.

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Background: Rotator cuff injuries result in impaired functionality of the shoulder. The difference in shoulder functionality in patients treated with arthroscopy who required open surgery is still unknown. Objective: To determine if there is a difference in the functional evolution of the shoulder in patients who underwent surgery due to rotator cuff lesion which began with arthroscopy and ended in open surgery. Material and methods: A cohort, longitudinal, observational and comparative study was carried out. The Constant scale was applied to measure the functionality of the shoulder in patients who underwent surgery due to rotator cuff injury, prior to surgery, 3 and 6 months after it, from August 2021 to April 2022. Functionality between patients who started with arthroscopy and required surgery and with those who only underwent arthroscopy was compared. Results: 30 patients were included. Shoulder functionality in the preoperative period had a mean of 42.2 ± 18 (95% confidence interval [95% CI] 35.5-49.0), at 3 months of 48.18 ± 14 (95% CI 42.9-53.4) and at 6 months of 66.7 (95% CI 60.1-73.4), with a p = 0.001. The difference between the patients who required surgery was not significant (p = 0.3). Conclusions: The functional evolution of the shoulder in patients who underwent surgery due to rotator cuff injury improves over time. The type of surgery does not influence the functional evolution.

Introducción: las lesiones del mango rotador ocasionan deterioro de la funcionalidad del hombro. La diferencia en la funcionalidad del hombro en pacientes tratados con artroscopía que ameritaron cirugía abierta aún se desconoce. Objetivo: determinar si existe diferencia en la evolución funcional del hombro en pacientes intervenidos por lesión del mango rotador que iniciaron con artroscopía y terminaron en cirugía abierta. Material y métodos: se hizo un estudio de cohorte, longitudinal, observacional y comparativo. Se aplicó la escala Constant para medir la funcionalidad del hombro en pacientes intervenidos por lesión del mango rotador, previo a la cirugía, a los 3 y a los 6 meses posteriores a esta, entre agosto de 2021 y abril de 2022. Se comparó la funcionalidad entre los pacientes que iniciaron con artroscopía y que requirieron cirugía con los que solo se intervinieron con artroscopía. Resultados: se incluyeron 30 pacientes. La funcionalidad del hombro en el preoperatorio tuvo una media de 42.2 ± 18 (intervalo de confianza del 95% [IC 95%] 35.5-49.0), a los 3 meses se obtuvo una media de 48.18±14 (IC 95% 42.9-53.4) y a los 6 meses de 66.7 (IC 95% 60.1-73.4), con una p = 0.001. La diferencia entre los pacientes que requirieron cirugía no fue significativa (p = 0.3). Conclusiones: la evolución funcional del hombro en pacientes intervenidos por lesión del mango rotador mejora con el paso del tiempo. El tipo de cirugía no influye en la evolución funcional.

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INTRODUCTION: arthroscopic surgical treatment of rotator cuff tendon injuries has replaced open surgery as the first treatment option. Different surgical techniques have been described for massive or irreparable ruptures, and recently, a new device that consists of a biodegradable subacromial spacer between the humeral head and the acromion has been used. The present study aims to analyse the results of this implant in our experience. MATERIAL AND METHODS: we conducted an observational and retrospective study of all patients undergoing subacromial spacer implantation at our centre from 2017 to 2019. Patients were assessed pre- and postoperatively using the Constant, DASH and VAS scales. RESULTS: a total of 43 patients met the inclusion criteria and the minimum follow-up of 24 months. The mean DASH scale score went from 53.6 at preoperative assessment to 27.9 at postoperative assessment (p = 0.026). There was also a significant improvement in the Constant scale from a mean of 37.9 to 61.8 (p = 0.037). In terms of pain assessment, the mean VAS went from a mean of 7.44 to 3.38 (p = 0.916). In 90% of patients no complications or need for further interventions were objectified. CONCLUSIONS: the subacromial balloon has shown favorable results in our series of patients, so it could be a valid treatment option in patients with non-repairable rotator cuff tears.

INTRODUCCIÓN: el tratamiento mediante cirugía artroscópica de las lesiones del manguito rotador ha desplazado a la cirugía abierta como primera opción de tratamiento. Existen diferentes técnicas quirúrgicas descritas para tratar las roturas masivas o no reparables. Desde hace unos años se viene utilizando un nuevo dispositivo que consiste en un balón subacromial biodegradable que actúa como espaciador entre la cabeza humeral y el acromion. Este trabajo pretende analizar los resultados de este implante. MATERIAL Y MÉTODOS: realizamos un estudio observacional y retrospectivo de todos los pacientes a los que se les implantó un balón subacromial en nuestro centro entre 2017 y 2019. Se evaluó a los pacientes pre y postoperatoriamente mediante las escalas de Constant, DASH y EVA. RESULTADOS: un total de 43 pacientes cumplieron los criterios de inclusión y el seguimiento mínimo de 24 meses. La puntuación media de la escala DASH pasó de 53.6 en la evaluación preoperatoria a 27.9 en la postoperatoria (p = 0.026). También se obtuvo una mejoría significativa en la escala de Constant, que pasó de una media de 37.9 a 61.8 (p = 0.037). En cuanto a la evaluación del dolor, la EVA media pasó de 7.44 a 3.38 (p = 0.916). En 90% de los pacientes no se objetivaron complicaciones ni necesidad de nuevas intervenciones. CONCLUSIONES: el balón subacromial ha mostrado resultados favorables en nuestra serie de pacientes, por lo que podría suponer una opción válida de tratamiento en pacientes con roturas no reparables del manguito rotador.

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SUMMARY: The teres minor is one of the rotator cuff muscles that comprise the superior margin of the quadrangular space. Quadrangular space syndrome (QSS) refers to the entrapment or compression of the axillary nerve and the posterior humeral circumflex artery in the quadrangular space, often caused by injuries, dislocation of the shoulder joint, etc. Patients who fail the primary conservative treatments and have persistent symptoms and no pain relief for at least six months would be considered for surgical interventions for QSS. This cadaveric study of 17 cadavers (males: 9 and females: 8) was conducted in the Gross Anatomy Laboratory at the Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University. The cadavers were preserved in a 10 % formaldehyde solution and obtained ethical approval by the ethical commission of the Siriraj Institutional Review Board. The morphology of the teres minor muscle-tendon junction, the bifurcation type of the axillary nerve, and the length and number of the terminal branches of the nerve to the teres minor were documented. Specimens with quadrangular space contents and surrounding muscles that had been destroyed were excluded from the study. The results showed that 47.06 % of the specimens had type A bifurcation, 47.06 % had type B bifurcation, and the remaining 5.88 % had type C bifurcation. It was observed that 58.82 % had nonclassic muscle-tendon morphology, while 41.18 % were classic. The average length of the terminal branches of the nerve to the teres minor in males was 1.13 cm, with the majority having two branches. For females, many showed one terminal branch with an average length of 0.97 cm. Understanding the differences in anatomical variations can allow for a personalized treatment plan prior to quadrangular space syndrome surgical procedures and improve the recovery of postsurgical interventions for patients.

El músculo redondo menor es uno de los músculos del manguito rotador que comprende el margen superior del espacio cuadrangular. El síndrome del espacio cuadrangular (QSS) se refiere al atrapamiento o compresión del nervio axilar y la arteria circunfleja humeral posterior en el espacio cuadrangular, a menudo causado por lesiones, dislocación de la articulación humeral, entre otros. En los pacientes en los que fracasan los tratamientos conservadores primarios y presentan síntomas persistentes y ningún alivio del dolor durante al menos seis meses se considerarían para intervenciones quirúrgicas para QSS. Este estudio cadavérico de 17 cadáveres (hombres: 9 y mujeres: 8) se llevó a cabo en el Laboratorio de Anatomía Macroscópica del Departamento de Anatomía de la Facultad de Medicina del Hospital Siriraj de la Universidad Mahidol. Los cadáveres se conservaron en una solución de formaldehído al 10 % y obtuvieron la aprobación ética de la comisión ética de la Junta de Revisión Institucional de Siriraj. Se documentó la morfología de la unión músculo-tendón del músculo redondo menor, el tipo de bifurcación del nervio axilar y la longitud y el número de las ramas terminales del nervio para el músculo redondo menor. Se excluyeron del estudio los especímenes con contenido de espacios cuadrangulares y músculos circundantes que habían sido destruidos. Los resultados mostraron que el 47,06 % de los especímenes presentó bifurcación tipo A, el 47,06 % una bifurcación tipo B y el 5,88 % restante una bifurcación tipo C. Se observó que el 58,82 % presentaba una morfología músculo-tendinosa no clásica, mientras que el 41,18 % era clásica. La longitud pmedia de los ramos terminales del nervio hasta el músculo redondo menor en los hombres era de 1,13 cm, y la mayoría tenía dos ramos. En el caso de las mujeres, mostraron un ramo terminal con una longitud promedio de 0,97 cm. Comprender las diferencias en las variaciones anatómicas puede permitir un plan de tratamiento personalizado antes de los procedimientos quirúrgicos del síndrome del espacio cuadrangular y mejorar la recupe- ración de las intervenciones posquirúrgicas de los pacientes.

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BACKGROUND: The number of researchers and clinicians using movement-evoked pain and sensitivity to movement-evoked pain to assess shoulder pain has increased. However, the intrarater test-retest reliability of movement-evoked pain and sensitivity to movement-evoked pain in people with rotator cuff-related shoulder pain (RCRSP) is still unknown. OBJECTIVE: We examined the intrarater test-retest reliability of movement-evoked pain and sensitivity to movement-evoked pain in participants with RCRSP. METHODS: Seventy-four participants with RCRSP performed five trials of active shoulder abduction to elicit pain under two experimental conditions: active shoulder abduction to the onset of pain and maximum range of motion (ROM). The primary outcome measures were pain intensity and ROM. Test-retest reliability of movement-evoked pain and sensitivity to movement-evoked pain was examined using intraclass correlation coefficient (ICC3,1) and minimal detectable change (MDC90). RESULTS: The reliability of movement-evoked pain under both experimental conditions was good to excellent (ICC: 0.81 to 0.95), while the reliability of sensitivity to movement-evoked pain was poor in both conditions (ICC≤0.45). The MDC90 for pain intensity was 1.6 and 1.8 during shoulder abduction to the onset of pain and maximum ROM, respectively. The MDC90 for ROM was 17.5° and 11.2° during shoulder abduction to the onset of pain and maximum ROM condition, respectively. CONCLUSION: This study confirms movement-evoked pain testing during active shoulder abduction to the onset of pain or maximum ROM condition is reliable to assess pain associated with movement in patients with RCRSP. The minimal detectable change score of movement-evoked pain can guide clinicians and researchers on how to interpret changes in these outcomes.

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Introdução: o ombro do jogador de voleibol é suscetível a lesões resultantes de sobrecargas biomecânicas e movimentos repetitivos. As frequentes queixas de dor nessa articulação evidenciam o elevado volume de ações motoras unilaterais em alta velocidade acima da cabeça, atingindo o manguito rotador (MR) e gerando limitação funcional na prática desportiva. As tendinopatias do MR, formado pelos músculos subescapular, redondo menor, infraespinhal e supraespinhal, atingem comumente os tendões do supraespinhal e do infraespinhal. Objetivo: descrever as condutas cinesioterapêuticas utilizadas no tratamento das tendinopatias do MR em atletas de voleibol de quadra. Metodologia: pesquisaram-se as bases de dados MEDLINE, SciELO e BVS. Descritores: lesões do ombro, manguito rotador, atletas, voleibol e Terapia por Exercício (pesquisados em inglês), associados dois a dois ou três a três, dentre os quais o termo atletas ou voleibol sempre foi mantido. Foram incluídos artigos de revisão, artigos originais, ensaios clínicos e estudos de coorte publicados em português e inglês, entre os anos de 2009 e 2019. Resultados: inicialmente a busca resultou em 480 artigos. Após o processo de seleção, seis estudos foram revisados na íntegra e incluídos na síntese qualitativa. Conclusão: as principais condutas cinesioterapêuticas descritas foram: fortalecimento dos rotadores externos, dos músculos do tronco, da coluna e periescapulares, alongamento da região posterior do ombro e mobilizações articulares.

Introduction: the volleyball player's shoulder is susceptible to injuries resulting from biomechanical overloads and repetitive movements. The frequent complaints of pain in this joint highlight the high volume of unilateral motor actions at high speed above the head, reaching the rotator cuff (RC) and generating functional limitation in sports. RC tendinopathies, formed by the subscapularis, teres minor, infraspinatus and supraspinatus muscles, commonly affect the supraspinatus and infraspinatus tendons. Objective: to describe the kinesiotherapeutic conducts used in the treatment of RC tendinopathies in indoor volleyball athletes. Methodology: MEDLINE, SciELO and VHL databases were searched. Descriptors: shoulder injuries, rotator cuff, athletes, volleyball and Exercise Therapy (searched in English), associated two by two or three by three, among which the term athletes or volleyball was always maintained. Review articles, original articles, clinical trials and cohort studies published in Portuguese and English between 2009 and 2019 were included. Results: initially the search resulted in 480 articles. After the selection process, six studies were fully reviewed and included in the qualitative synthesis. Conclusion: the main kinesiotherapeutic procedures described were strengthening of the external rotators, trunk, spine and periscapular muscles, stretching of the posterior region of the shoulder and joint mobilizations.

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BACKGROUND: Recent evidence suggests that internal impingement, or rotator cuff tendon deformation against the glenoid, occurs during overhead motions and may therefore be a mechanism of pathology even in non-athletes. Clinically, knowing how movement impacts potential injury mechanisms would be useful to guide movement-based treatment strategies. OBJECTIVE: To compare the distance between the glenoid and rotator cuff footprint between two groups classified based on scapulothoracic upward rotation (UR) magnitude (i.e., low, high) at 90° humerothoracic elevation. METHODS: Shoulder kinematics were quantified during scapular plane abduction in 60 participants using single-plane fluoroscopy. Of these, 40 were subsequently classified as having high or low scapulothoracic UR based on the sample's distribution. The minimum distance between the glenoid and rotator cuff footprint was calculated along with the locations of closest proximity (i.e., proximity centers). Minimum distances and proximity center locations were compared between groups using 2-factor mixed-model ANOVAs. The prevalence of glenoid-to-footprint contact was also compared. RESULTS: Glenoid-to-footprint distances consistently decreased as humerothoracic elevation angle increased, and the anterior aspect of the footprint was closest to the posterosuperior glenoid. Minimum distances were not significantly different between UR groups (p≥0.16). However, group differences existed in proximity center locations (p<0.01). Glenoid-to-footprint contact was identified in 75.0% of participants at an average (SD) of 133.6° (3.2°) humerothoracic elevation. CONCLUSION: The results of this study suggest that decreased UR as classified and assessed in this study does not significantly impact glenoid-to-footprint distances but does alter the location of the contact, which occurred in most participants.

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Abstract Objective Rotator cuff repair (RCR) is one of the most common arthroscopic procedures. Our investigation aims to quantify the impact that the COVID-19 pandemic had on RCR, specifically on patients with acute, traumatic injuries. Methods Institutional records were queried to identify patients who underwent arthroscopic RCR between March 1st to October 31st of both 2019 and 2020. Patient demographic, preoperative, perioperative, and postoperative data were collected from electronic medical records. Inferential statistics were used to analyze data. Results Totals of 72 and of 60 patients were identified in 2019 and in 2020, respectively. Patients in 2019 experienced shorter lengths of time from MRI to surgery (62.7 ± 70.5 days versus 115.7 ± 151.0 days; p = 0.01). Magnetic resonance imaging (MRI) scans showed a smaller average degree of retraction in 2019 (2.1 ± 1.3 cm versus 2.6 ± 1.2 cm; p = 0.05) butnodifference in anterior toposterior tear size between years (1.6 ± 1.0 cm versus 1.8 ± 1.0 cm; p = 0.17). Less patients in 2019 had a tele-health postoperative consultation with their operating surgeon compared with 2020 (0.0% versus 10.0%; p = 0.009). No significant changes in complications (0.0% versus 0.0%; p > 0.999), readmission (0.0% versus 0.0%; p > 0.999), or revision rates (5.6% versus 0.0%; p = 0.13) were observed. Conclusion From 2019 to 2020, there were no significant differences in patient demographics or major comorbidities. Our data suggests that even though the time from MRI to surgery was delayed in 2020 and telemedicine appointments were necessary, RCR was still performed in a time in early complications. Level of Evidence III.

Resumo Objetivo Oreparodomanguitorotador (RMR) é um dos procedimentos artroscópi-cos maiscomuns. Nossapesquisavisaquantificar o impacto da pandemia de COVID-19 sobre o RMR, especificamente em pacientes com lesões agudas e traumáticas. Métodos Os prontuários institucionais foram consultados para identificação de pacientes submetidos ao RMR artroscópico entre 1° de março e 31 de outubro de 2019 e de 2020. Dados demográficos, pré-operatórios, perioperatórios e pós-operatórios dos pacientes foram coletados de prontuários eletrônicos. Os dados foram analisados por estatística inferencial. Resultados Totais de 72 ede60pacientes foramidentificados em 2019 e 2020, respectivamente. Os pacientes de 2019 apresentaram menor intervalo entre a ressonância magnética (RM) e a cirurgia (62,7 ± 70,5 dias versus 115,7 ± 151,0 dias; p = 0,01). Os exames de RM mostraram menor grau médio de retração em 2019 (2,1 ± 1,3 cm versus 2,6 ± 1,2 cm; p = 0,05), mas nenhuma diferença foi observada na extensão anteroposterior da laceração entre os anos (1,6 ± 1,0 cm versus 1,8 ± 1,0 cm; p = 0,17).Em 2019,o número de pacientes atendidos por seus cirurgiões em consultas pós-operatórias por telemedicina foi menor em comparação com 2020 (0,0% versus 10,0%; p = 0,009). Não foram observadas alterações significativas nas taxas de complicação (0,0% versus 0,0%; p > 0,999), de readmissão (0,0% versus 0,0%; p > 0,999) ou de revisão (5,6% versus 0,0%; p = 0,13). Conclusão Não houve diferenças significativas nos dados demográficos dos pacientes ou nas principais comorbidades entre 2019 e 2020. Nossos dados sugerem que, embora o intervalo entre a RM e a cirurgia tenha sido maior em 2020 e tenha havido necessidade de consultas por telemedicina, o RMR ainda foi realizado em tempo hábil e sem alterações significativas nas complicações precoces. Nível de Evidência III.

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