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OBJECTIVE: To determine in the long term whether supervised physiotherapy is more effective than a home exercise program for functional improvement and pain relief in patients with distal radius fracture (DRF). DESIGN: Randomized controlled trial. SETTING: Rehabilitation hospital. PARTICIPANTS: A total of 74 patients older than 60 years with extra-articular DRF were randomly allocated into two groups. INTERVENTIONS: The experimental group received 6 weeks of supervised physiotherapy (n = 37) and the control group received 6 weeks of home exercise program (n = 37). MAIN OUTCOME MEASURES: The primary outcome was wrist/hand function assessed using the Patient-Rated Wrist Evaluation (PRWE) questionnaire; secondary outcomes were the pain visual analogue scale (VAS), grip strength and wrist flexion-extension active range of motion. RESULTS: All patients completed the trial. For the primary outcome, at 6-weeks and 1-year follow-up, the PRWE questionnaire showed a mean difference between groups of 18.6 (95% CI 12.8 to 24.3) and 18.5 points (95% CI 12.7 to 24.2) respectively, these differences are clinically important. Conversely, at 2-year follow-up this effect decreases to 3.3 points (95% CI -2.4 to 9.0). For secondary outcomes, at 6-weeks and 1-year follow-up, in all measurements the effect size range from medium to large. Conversely, at 2-year follow-up only grip strength showed large effect size in favor of supervised physiotherapy, the rest of outcomes did not show difference between groups. CONCLUSION: At the 6-week and 1-year follow-up, supervised physiotherapy was more effective for functional improvement and pain relief compared with a home exercise program in patients older than 60 years with extra-articular DRF. However, this effect decreases over time, at the 2-year follow-up, only grip strength showed a difference in favor of supervised physiotherapy. TRIAL REGISTRATION: Brazilian registry of clinical trials UTN no. U1111- 1249-2492. Registered 17 March 2020. CONTRIBUTION OF THE PAPER.

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Objetivo principal: Conocer la epidemiologia de las fracturas del cuarto distal del radio en el esqueleto en crecimiento y el tratamiento realizado en el CHPR en los años 2017 y 2018. Objetivos específicos: Valorar re-desplazamiento, necesidad de re manipulación, complicaciones, re-fractura. Metodología: Estudio observacional descriptivo retrospectivo. Criterios de inclusión: pacientes de 0 a 14 años con fractura de radio distal (fisaria, metafisaria y suprametafisaria) valorados en el CHPR entre 1 enero del 2017 y 31 diciembre del 2018. Criterios de exclusión: pacientes con radiografía normal, fracturas en miembros con malformaciones, infecciones óseas, patología tumoral maligna o benigna. Obtención de datos: Valoración de radiografías de puño y antebrazo realizadas en el CHPR en 2017 y 18, iniciales y evolutivas. Se analizaron: edad, sexo, fecha fractura, topografía de la fractura, desplazamiento inicial, tratamiento, evolución radiográfica y complicaciones. Resultados: se incluyeron 662 pacientes. Siendo en su mayoría de género masculino (65%), con una media de 9 años, miembro derecho (61%), en los meses de verano (36%). En cuanto a la topografía se evidenció una frecuencia mayor en fracturas tipo rodete y metafisarias (31.72% y 31.57%), seguido por suprametafisaria (18.43%) y fisaria (18.28%). El tratamiento realizado fue ortopédico en el 86.56% de los casos, mientras que quirúrgico fue el 12.84%, en su gran mayoría con alambres de Kirschner (11,2%). El tiempo de inmovilización promedio fue de 6 semanas, con un porcentaje de complicaciones del 14.05% del total de las fracturas. Conclusiones: Se valoraron las características de los pacientes y fracturas de radio distal en el CHPR en los años 2017 y 18, siendo un total de 662 fracturas, en las que su mayoría se realizó tratamiento ortopédico con un índice de complicaciones que ronda el 14%, siendo mayor cuanto mayor es el desplazamiento inicial de la fractura.

Objetivo principal: Conhecer a epidemiologia das fraturas do quarto distal do rádio no esqueleto em crescimento e o tratamento realizado no CHPR nos anos de 2017 e 2018. Objetivos específicos: Avaliar re-deslocamento, necessidade de remanipulação, complicações, refratura. Metodologia: Estudo observacional descritivo retrospectivo. Critérios de inclusão: pacientes de 0 a 14 anos com fratura do rádio distal (fisário, metafisário e suprametafisário) avaliados no CHPR entre 1º de janeiro de 2017 e 31 de dezembro de 2018. Critérios de exclusão: pacientes com radiografias normais, fraturas em membros com malformações, osso infecções, patologia tumoral maligna ou benigna. Coleta de dados: Avaliação das radiografias de punho e antebraço realizadas no CHPR em 2017 e 18, inicial e evolutiva. Foram analisados: idade, sexo, data da fratura, topografia da fratura, deslocamento inicial, tratamento, evolução radiográfica e complicações. Resultados: 662 pacientes foram incluídos. Sendo maioritariamente do sexo masculino (65%), com média de 9 anos, membro direito (61%), nos meses de verão (36%). Em relação à topografia, foi evidenciada maior frequência nas fraturas da borda e metafisárias (31,72% e 31,57%), seguidas das suprametafisárias (18.43%) e fisárias (18.28%). O tratamento realizado foi ortopédico em 86.56% dos casos, enquanto cirúrgico em 12.84%, sendo a maioria com fios de Kirschner (11,2%). O tempo médio de imobilização foi de 6 semanas, com percentual de complicações de 14.05%. Conclusões: Foram avaliadas as características dos pacientes e fraturas do rádio distal no CHPR nos anos de 2017 e 18, com um total de 662 fraturas (0,9 por dia), em que a maioria foi submetida a tratamento ortopédico com índice de complicações que fica em torno de 14%, sendo maior quanto maior for o deslocamento inicial da fratura.

Title: Fractures of the distal end of the radius in the immature skeleton. Epidemiological study at the Pereira Rossell Hospital Center. Main objective: To know the epidemiology of fractures of the distal fourth of the radius in the growing skeleton and the treatment carried out in the CHPR in the years 2017 and 2018. Specific objectives: To assess re-displacement, need for re-manipulation, complications, re- fracture. Methodology: Retrospective descriptive observational study. Inclusion criteria: patients aged 0 to 14 years with distal radius fracture (physeal, metaphyseal and suprametaphyseal) evaluated at the CHPR between January 1, 2017 and December 31, 2018. Exclusion criteria: patients with normal radiographs, fractures in limbs with malformations, bone infections, malignant or benign tumor pathology. Data collection: Assessment of fist and forearm X-rays performed at the CHPR in 2017 and 18, initial and evolutionary. The following were analyzed: age, sex, fracture date, fracture topography, initial displacement, treatment, radiographic evolution and complications. Results: 662 patients were included. Being mostly male (65%), with an average of 9 years, right limb (61%), in the summer months (36%). Regarding the topography, a higher frequency was evidenced in rim and metaphyseal fractures (31.72% and 31.57%), followed by suprametaphyseal (18.43%) and physeal (18.28%). The treatment performed was orthopedic in 86.56% of the cases, while surgical was 12.84%, mostly with Kirschner wires (11.2%). The average immobilization time was 6 weeks, with a percentage of complications of 14.05%. Conclusions: The characteristics of the patients and fractures of the distal radius in the CHPR in the years 2017 and 18 were evaluated, with a total of 662 fractures (0.9 per day), in which the majority underwent orthopedic treatment with an index of complications that is around 14%, being greater the greater the initial displacement of the fracture.

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Abstract Objective This study evaluated the epidemiological data and functional outcomes from patients with concomitant distal radial and scaphoid fractures treated in a single center specialized in hand surgery. Functional outcomes analysis used validated instruments. Methods Patients diagnosed with distal radial and scaphoid fractures treated from January 2011 to December 2021 underwent assessments using the Disabilities of the Arm, Shoulder and Hand (DASH), Patient-Rated Wrist Evaluation (PRWE), Visual Analog Scale (VAS) for pain, goniometry, radiographic consolidation, and complications six months after surgery. Results The study included 23 patients, 73.9% men and 26.1% women. Most (56.5%) fractures occurred on the right side, and 43.5% happened on the left side. Treatment of most (56%) distal radial fractures used a locked volar plate. Functional assessment by PRWE resulted in a mean score of 35.9 points (range, 14 to 71 points), while DASH showed a mean score of 37.8 points (range, 12 to 78 points). The mean VAS was 2.33 during activities (range, 0.6 to 6.2). Conclusion Distal radial fractures associated with scaphoid fractures resulted from high-energy trauma, and most patients were males. There was a low rate of complications with surgical treatment, and the patients had satisfactory functional evolution with a low level of pain.

Resumo Objetivo Avaliar os resultados epidemiológicos e funcionais dos pacientes que apresentaram fraturas concomitantes do rádio distal e do escafoide e foram tratados em um único centro especializado em cirurgia da mão, através de instrumentos validados para analisar os desfechos funcionais desses pacientes. Métodos Foram avaliados os pacientes com diagnóstico de fratura do rádio distal e escafoide tratados de janeiro de 2011 até dezembro de 2021, através dos questionários Disabilities of the Arm, Shoulder and Hand (DASH), Patient Rated Wrist Evaluation (PRWE) e Escala Visual Analógica da dor (EVA); goniometria; consolidação radiográfica; complicações em seis meses de pós-operatório. Resultados Vinte e três pacientes foram incluídos no estudo, sendo 73,9% homens e 26,1% mulheres; 56,5% das fraturas ocorreram à direita e 43,5% à esquerda. A maioria das fraturas do rádio distal foi tratada com placa volar bloqueada, totalizando 56%. Na avaliação funcional pelo PRWE, obteve-se média de 35,9 pontos (variação de 14 a 71 pontos) e pelo DASH média de 37,8 pontos (variação de 12 a 78 pontos). A EVA apresentou uma média de 2,33 durante a atividade (variação de 0,6 a 6,2). Conclusão Verificou-se que as fraturas do rádio distal associadas a fraturas do escafoide foram causadas por traumas de alta energia, com o sexo masculino mais acometido. Houve baixo índice de complicações com tratamento cirúrgico e os pacientes tiveram evolução funcional satisfatória, com baixo índice de dor.

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Introducción: La fractura de radio distal resulta común en la extremidad superior y representa un reto terapéutico. Objetivo: Determinar la concordancia entre radiografía simple y tomografía computarizada con respecto a las clasificaciones AO Foundation y de Fernández, y la elección del tratamiento. Métodos: Se realizó un estudio de concordancia diagnóstica entre radiografía simple y tomografía computarizada. Ortopedistas y cirujanos de mano analizaron 19 imágenes de fracturas de radio distal de acuerdo con las clasificaciones AO Foundation y de Fernández, y las distintas opciones de tratamiento. Para el grado de concordancia se usó el coeficiente Kappa de Fleiss. La prueba de t-Student y Chi cuadrado diferenciaron los grupos para variables cuantitativas y cualitativas, respectivamente. Hubo una significancia estadística de p= 0,05. Resultados: La clasificación de Fernández coincidió mejor que la clasificación AO Foundation entre radiografía y tomografía computarizada. En la elección del tratamiento y la técnica de osteosíntesis la concordancia fue mayor al 90 por ciento, mientras que el abordaje quirúrgico solo alcanzó el 50 por ciento. La clasificación AO Foundation radiográfica se correspondió con fracturas complejas, mientras la de Fernández con las menos complicadas. Las fracturas se subestimaron cuando se clasificaron con radiografía. Conclusiones: La relación de las clasificaciones entre radiografía y tomografía computarizada para fracturas de radio distal no resulta satisfactoria. La tomografía computarizada ofrece información que modifica las decisiones en el tratamiento(AU)

Introduction: Distal radius fracture is common in the upper extremity and represents a therapeutic challenge. Objective: To determine the agreement between simple radiography and computed tomography with respect to AO Foundation and Fernández classifications, and the choice of treatment. Methods: A diagnostic agreement study was carried out between simple radiography and computed tomography. Orthopedists and hand surgeons analyzed 19 images of distal radius fractures according to AO Foundation and Fernández classifications, and the different treatment options. Fleiss Kappa coefficient was used for the degree of agreement. The Student's t-test and chi-square differentiated the groups for quantitative and qualitative variables, respectively. There was a statistical significance of p = 0.05. Results: Fernández classification coincided better than AO Foundation between radiography and computed tomography. In the choice of treatment and osteosynthesis technique, agreement was greater than 90 percent, while the surgical approach only reached 50 percent. The radiographic AO Foundation classification corresponded to complex fractures while Fernández classification corresponded to less complicated ones. Fractures were underestimated when classified with radiography. Conclusions: The relationship of classifications between radiography and computed tomography for distal radius fractures is not satisfactory. Computed tomography provides information that modifies treatment decisions(AU)

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A spontaneous rupture of the extensor pollicis longus (EPL) tendon after a fracture of the distal radius is a known complication in adults. In contrast, there are a paucity of reports concerning EPL tendon ruptures in children and adolescents. The authors present a case of a spontaneous rupture of the EPL tendon in a 15-year-old girl after a non-displaced distal radius fracture. The patient had no predisposing factors including rheumatoid arthritis or steroid injection. During surgery, the EPL tendon was found to be ruptured at the extensor retinaculum (third compartment). Extensor indicis proprius (EIP) to EPL transfer was performed. At the 18-month follow-up, the patient was asymptomatic and showed satisfactory thumb function, with normal active extension.

La rotura espontánea del tendón del extensor largo del pulgar (EPL) tras una fractura distal del radio es una complicación conocida en adultos. En cambio, son escasos los informes sobre roturas del tendón del EPL en niños y adolescentes. Los autores presentan un caso de rotura espontánea del tendón del EPL en una niña de 15 años tras una fractura distal del radio no desplazada. La paciente no presentaba factores predisponentes como artritis reumatoide o inyección de esteroides. Durante la intervención quirúrgica, se descubrió que el tendón del EPL estaba roto a la altura del retináculo extensor (tercer compartimento). Se realizó una transferencia del extensor indicis proprius (EIP) al EPL. A los 18 meses de seguimiento, el paciente estaba asintomático y mostraba una función satisfactoria del pulgar, con una extensión activa normal.

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PURPOSE: Occupational radiation exposure can have adverse health consequences for surgeons. The purpose of this study was to determine if utilization of an intraoperative, real-time radiograph counter results in decreased radiation exposure events (REEs) during open reduction and internal fixation (ORIF) of distal radius fractures (DRFs). METHODS: We reviewed all cases of isolated ORIF DRFs performed at a single center from January 2021 to February 2023. All cases performed on or after January 1, 2022 used an intraoperative radiograph counter, referred to as a "shot-clock" (SC) group. Cases prior to this date were performed without a SC and served as a control group (NoSC group). Baseline demographics, fracture, and surgical characteristics were recorded. Final intraoperative radiographs were reviewed to record reduction parameters (radial inclination, volar tilt, and ulnar variance). REEs, fluoroscopy exposure times, and total radiation doses milligray (mGy) were compared between groups. RESULTS: A total of 160 ORIF DRF cases were included in the NoSC group, and 135 were included in the SC group. The NoSC group had significantly more extra-articular fractures compared with the SC group. Reduction parameters after ORIF were similar between groups. The mean number of REEs decreased by 48% in the SC group. Cases performed with the SC group had significantly lower total radiation doses (0.8 vs 0.5 mGy) and radiation exposure times (41.9 vs 24.2 seconds). Mean operative times also decreased for the SC group (70 minutes) compared with that for the NoSC group (81 minutes). CONCLUSIONS: A real-time intraoperative radiograph counter was associated with decreased REEs, exposure times, and total radiation doses during ORIF DRFs. Cases performed with a SC had significantly shorter operative times without compromising reduction quality. Using an intraoperative SC counter during cases requiring fluoroscopy may aid in decreasing radiation exposure, which serves as an occupational hazard for hand and upper-extremity surgeons. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic II.

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PURPOSE: This study aimed to analyze baseline predictors of functional outcomes six weeks and at one year follow-up in patients older than 60 years with complex regional pain syndrome type 1 (CRPS I) after distal radius fracture (DRF). METHODS: A total of 120 patients with CRPS I after DRF were prospectively recruited. Presumptive relevant factors were collected and analyzed as potential baseline predictors. Additionally, functional outcomes were assessed at the beginning of physiotherapy treatment, at six weeks after finishing physiotherapy treatment, and at one year follow-up. Patient-Rated Wrist Evaluation; Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire; Jamar dynamometer; and visual analog scale (VAS) were assessed. RESULTS: All participants completed the study. At 6 weeks, the main results showed an association of lower values of grip strength with female sex (p = 0.010), intra-articular DRFs (p = 0.030), longer immobilization time (p = 0.040), lower levels of physical activity (p < 0.001), higher levels of kinesiophobia (p = 0.010), and anxiety (p = 0.020). At 1-year follow-up, the results showed an association of lower values of DASH with higher BMI (p < 0.001) and longer immobilization time (p < 0.001); and higher values of VAS showed an association with older age (p = 0.010), higher BMI (p = 0.010), and lower levels of physical activity (p = 0.040). CONCLUSION: At six weeks, factors such as BMI, immobilization time, physical activity, and kinesiophobia are associated with lower functional outcomes. Additionally, at one year follow-up, BMI, immobilization time, and physical activity continue to be associated with lower functional outcomes in patients with CRPS I after DRF treated conservatively.

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The aim of this study was to compare the clinical effectiveness and complications of different treatment modalities for elderly patients with distal radius fracture (DRF). METHODS: We performed a network meta-analysis (NMA) of randomized clinical trials (RCTs). Eight databases were searched. The eligibility criteria for selecting studies were RCTs that compared different treatment modalities (surgical or nonoperative) in patients older than 60 years with displaced or unstable intra-articular and/or extra-articular DRFs. RESULTS: Twenty-three RCTs met the eligibility criteria (2020 patients). For indirect comparisons, the main findings of the NMA were in volar locking plate (VLP) versus cast immobilization, with the mean differences for the patient-rated wrist evaluation (PRWE) questionnaire at -4.45 points (p < 0.05) and grip strength at 6.11% (p < 0.05). Additionally, VLP showed a lower risk ratio (RR) of minor complications than dorsal plate fixation (RR: 0.02) and bridging external fixation (RR: 0.25). Conversely, VLP and dorsal plate fixation showed higher rates of major complications. CONCLUSIONS: Compared with other treatment modalities, VLP showed statistically significant differences for some functional outcomes; however, most differences were not clinically relevant. For complications, although most differences were not statistically significant, VLP was the treatment modality that reported the lowest rate of minor and overall complications but also showed one of the highest rates of major complications in these patients. PROSPERO Registration: CRD42022315562.

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INTRODUCTION: More than 1 in 4 pediatric fractures involves the distal radius. Most prior epidemiologic studies are limited to retrospective, single center investigations, and often include adults. This study aims to describe the contemporary epidemiology of pediatric distal radius fractures using prospectively collected data from a multicenter Pediatric Distal Radius Fracture Registry. METHODS: Patients aged 4 to 18 years diagnosed with a distal radius fracture from June 2018 through December 2019 at 4 tertiary care pediatric centers were screened and enrolled in this prospective longitudinal cohort study. Patients were excluded if they presented with bilateral distal radius fractures, polytrauma, or re-fracture. Demographic information, mechanism of injury, fracture characteristics, associated injuries, and procedural information were recorded. All radiographs were reviewed and measured. Descriptive statistics and bivariate analyses were performed. RESULTS: A total of 1951 patients were included. The mean age was 9.9±3.3 years, and 61.3% of patients were male ( P <0.001). Most injuries occurred during a high-energy fall (33.5%) or sports participation (28.4%). The greatest proportion of fractures occurred during the spring months (38.5%). Torus fractures (44.0%) were more common than bicortical (31.3%) or physeal (21.0%) fractures. Of the physeal fractures, 84.3% were Salter-Harris type II. Associated ulnar fractures were observed in 51.2% of patients. The mean age at injury was higher for patients with physeal fractures (11.6±2.9 y) than patients with torus or bicortical fractures (9.4±3.1 and 9.6±3.1 y, respectively; P <0.001). Thirty-six percent of distal radius fractures underwent closed reduction and 3.3% underwent surgical fixation. Patients treated with closed reduction were more likely to be male (68.7% vs. 57.2%; P <0.001), obese (25.3% vs. 17.2%; P <0.001), and have bicortical fractures (62.2% vs. 14.5%; P <0.001). CONCLUSIONS: Distal radius fractures in children have a male preponderance and are most likely to occur in the spring months and during high-energy falls and sports. Physeal fractures tend to occur in older children while torus and bicortical fractures tend to occur in younger children. LEVEL OF EVIDENCE: Level I-prognostic.

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Abstract Scaphoid fractures account for 50 to 70% of all carpal bone fractures. Percutaneous scaphoid osteosynthesis can use the dorsal or volar approach, both with good results, and is most commonly performed under general anesthesia or regional nerve block. The wide-awake local anesthesia no tourniquet (WALANT) technique is already considered a safe and cost-effective technique in hand surgery around the world. Local anesthesia with epinephrine causes vasoconstriction, which obviates the need for tourniquet and, consequently, the need to use patient sedation. Thus, the possibility of testing fixation stability under physiological forces is another great advantage of using local anesthesia. In the technique described in the present paper, active wrist and hand motion can be tested immediately after scaphoid fixation. Wide-awake local anesthesia no tourniquet has been increasingly used in soft-tissue hand surgery and in the fixation of metacarpal and phalangeal fractures. However, to date, there is no published literature addressing the use of this technique in percutaneous scaphoid osteosynthesis. The purpose of the present technical note is to describe the use of WALANT for both the dorsal and volar approaches in percutaneous scaphoid osteosynthesis.

Resumo As fraturas do escafoide representam entre 50 e 70% de todas as fraturas dos ossos do carpo. A osteossíntese percutânea do escafoide pode usar a abordagem dorsal ou volar, ambas com bons resultados. É mais comumente realizada sob anestesia geral ou bloqueio nervoso regional. A técnica de anestesia local com o paciente totalmente acordado e sem torniquete (WALANT, na sigla em inglês) já é considerada uma técnica segura e eficaz na cirurgia da mão. A anestesia local com epinefrina causa vasoconstrição, o que evita o uso de torniquete e, consequentemente, a necessidade de sedação do paciente. Assim, a possibilidade de testar a estabilidade da fixação sob forças fisiológicas é outra grande vantagem do uso da anestesia local. Na técnica descrita aqui, o movimento ativo do punho e da mão pode ser testado imediatamente após a fixação escafoide. A técnica WALANT tem sido cada vez mais utilizada na cirurgia da mão em partes moles e na fixação de fraturas de metacarpo e falanges. No entanto, até o momento, não há literatura publicada abordando o uso dessa técnica na osteossíntese percutânea do escafoide. O objetivo desta nota técnica é descrever o uso de WALANT tanto para a abordagem dorsal quanto volar na osteossíntese percutânea do escafoide.

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Abstract Objective To evaluate the inter- and intraobserver reliability and reproducibility of the new AO/OTA 2018 classification for distal radius fractures and to compare it with the Fernandez classification system. Method A questionnaire was applied in the Qualtrics software on 10 specialists in hand surgery who classified 50 radiographs of distal radius fractures according to the Fernandez and AO/OTA 2018 classifications and, subsequently, indicated their treatment. The questionnaire was applied in time T0 and repeated after 4 weeks (t1). The mean agreement between the answers, and the reliability and inter- and intraobserver reproducibility were analyzed using kappa indexes. Results The mean interobserver agreement in the Fernandez classification was 76.4, and it was 59.2% in the AO/OTA 2018 classification. The intraobserver agreements were 77.3 and 56.6%, respectively. The inter- and intraobserver kappa indexes for the Fernandez classification were 0.57 and 0.55, respectively, and, in the AO/OTA 2018 classification, they were 0.34 and 0.31, respectively. Conclusion The AO/OTA 2018 classification showed a low intra- and interobserver reproducibility when compared with the Fernandez classification. However, both classifications have low intra- and interobserver indexes. Although the Fernandez classification did not obtain excellent results, it remains with better agreement for routine use.

Resumo Objetivo Avaliar a confiabilidade e a reprodutibilidade inter- e intraobservadores da nova classificação AO/OTA 2018 para fraturas distais do rádio e compará-la com o sistema classificatório de Fernandez. Métodos Foi aplicado um questionário no software Qualtrics em 10 especialistas em cirurgia da mão que classificaram 50 radiografias de fraturas distais de rádio de acordo com as classificações de Fernandez e AO/OTA 2018 e, posteriormente, indicaram seu tratamento. Esse questionário foi aplicado em tempo T0 e repetido após 4 semanas (t1). Analisou-se a média de concordância entre as respostas e confiabilidade e reprodutibilidade inter- e intraobservadores utilizando os índices kappa. Resultados A concordância média interobservador para a classificação de Fernandez foi de 76,4, e de 59,2% para a AO/OTA 2018. A concordância intraobservador foi de 77,3 e 56,6%, respectivamente. O índice de kappa inter- e intraobservador para a classificação de Fernandez foram de 0,57 e de 0,55, respectivamente, e a classificação AO/OTA 2018 obteve 0,34 e 0,31, respectivamente. Conclusão A classificação AO/OTA 2018 mostrou uma reprodutibilidade intra- e interobservadores baixa quando comparada à classificação de Fernandez. Porém, ambas as classificações apresentam índices intra- e interobservadores baixos. Embora a classificação de Fernandez não tenha obtido resultados excelentes, ela permanece com melhor concordância para o uso rotineiro.

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RESUMEN Introducción: la fractura del radio distal es una de las entidades traumáticas más frecuentes por la que acuden enfermos a los servicios de urgencia de Traumatología. Aunque su tratamiento es por lo general conservador, existen situaciones en que es necesaria la intervención quirúrgica con la fijación externa. Objetivo: evaluar los resultados de la fijación externa en pacientes con fracturas inestables del radio distal. Materiales y métodos: se realizó un estudio preexperimental en pacientes con fracturas inestables del radio distal, tratados mediante fijación externa en el Hospital Provincial Docente Clínico Quirúrgico Manuel Ascunce Domenech, de Camagüey, entre abril de 2018 y mayo de 2021. La investigación tuvo un nivel de evidencia IV, recomendación D. Resultados: el promedio de edad de los 41 pacientes fue de 40,5 años, con edad mínima de 20 y máxima de 68. Se observó un predominio del sexo femenino (25 pacientes, para un 61 %). La razón sexo femenino-masculino fue de 1,5 a 1, y la de afección de muñeca izquierda-derecha fue de 1,9 a 1. Se encontró significación entre antes y después al emplear los parámetros imagenológicos y las escalas evaluativas, con mejoría en ambos. Conclusiones: la fijación externa en fractura inestable del radio distal resulta eficaz a los doce meses en la mayoría de los enfermos. Las complicaciones son mínimas, y de presentarse responden de forma favorable al tratamiento.

ABSTRACT Introduction: distal radius fracture is one of the most frequent traumatic entities due which patients come to Traumatology emergency services. Although their treatment is usually conservative, there are situations where surgery with external fixation is necessary. Objetive: to evaluate the results of external fixation in patients with unstable distal radius fractures. Materials and methods: a pre-experimental study was carried out in patients with unstable fractures of the distal radius treated by external fixation at the Provincial Clinical Surgical Teaching Hospital Manuel Ascunce Domenech, of Camagüey, between April 2018 and May 2021. The research has IV level of evidence, D recommendation. Results: the average age of the 41 patients was 40.5 years old, with minimum age of 20 and maximum age of 68 years. Female sex prevalence was observed (25 patients, 61%). The female-male sex ratio was 1.5 to 1, and the left-right wrist condition was 1.9 to 1. Significance was found between before and after using the imaging parameters and the evaluative scales, with improvement in both cases. Conclusions: external fixation in unstable distal radius fracture is effective at twelve months in most patients. Complications are minimal and if they are present, they favorably answer to treatment.

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BACKGROUND: No published prospective studies have reported the clinical effects of physiotherapy at 1-year follow-up in patients with complex regional pain syndrome type I (CRPS I) after distal radius fracture (DRF). The purpose of this study was to evaluate at 1-year follow-up the functional effects of physiotherapy program in elderly patients with CRPS I after extra-articular DRF. METHODS: A total of 72 patients with CRPS I after DRF were prospectively recruited. All patients were treated with a 6-week supervised physiotherapy treatment. Three evaluations were performed: at the beginning, at the end of the treatment, and at 1-year follow-up. Wrist function, upper limb function, grip strength, and pain intensity were assessed with the Patient-Rated Wrist Evaluation (PRWE), Disabilities of the Arm, Shoulder, and Hand (DASH), Jamar dynamometer, and Visual Analogue Scale (VAS), respectively. RESULTS: At 1-year follow-up, the PRWE showed a decrease of 21.6 points (Cohen's d = 2.8; 95% confidence interval [CI] = 18.6-24.6; P < .05); the DASH showed a decrease of 23.8 points (Cohen's d = 2.9; 95% CI = 20.8-26.7; P < .05); grip strength showed an increase of 40.6% (Cohen's d = 5.0; 95% CI = 43.5-37.6; P < .05); and the VAS showed a decrease of 2.6 cm (Cohen's d = 1.9; 95% CI = 2.11-3.16; P < .05). CONCLUSION: At 1-year follow-up, a physiotherapy program showed clinically and statistically significant results in all functional outcomes in elderly patients with CRPS I after extra-articular DRF.

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INTRODUCTION: distal radius fractures are the most common in upper extremities. Therefore, it is important to standardize radiographic measures for their surgical approach. This study assessed the intra/interobserver reproducibility of radiographic parameters associated with surgical success of distal radius fractures. MATERIAL AND METHODS: retrospective cross-sectional design of secondary data extracted from clinical records. Posteroanterior and lateral X-rays of 112 distal radius fractures were assessed by two trauma specialists standardized in the measurements required to compute five parameters indicative of postoperative success: radial height, radial inclination, volar tilt, ulnar variance, and articular stepoff. The reproducibility of distances and angles was evaluated using the Bland-Altman method, calculating the mean of the difference between measurements, the range at ± 2 SD, and the proportion of measurements outside ± 2 SD. Postoperative success was also compared between patients with and without obesity according to the mean of the two measures made by each evaluator. RESULTS: evaluator 1 had the largest intra-observer difference in radial height (0.16 mm) and the largest proportion outside ± 2 SD in ulnar variance (8.1%); evaluator 2 had the largest difference in volar tilt (1.92o) and the highest proportion in radial inclination (10.7%). The largest inter-observer difference was for ulnar variance (1.02 mm) and the largest proportion outside ± 2 SD. for radial height (5.4%). Radial tilt had the largest difference (1.41o) with 4.5% of measurements outside ± 2 SD. Ulnar variance and volar tilt had the largest difference in postoperative success between evaluators, especially in patients with obesity. CONCLUSION: improving the radiographic quality and standardizing the measurements results in more reproducible indicators.

INTRODUCCIÓN: las fracturas del radio distal son las más comunes en extremidades superiores. Estandarizar las mediciones radiográficas para su abordaje quirúrgico es importante. Este estudio midió la reproducibilidad intra/interobservador de parámetros radiográficos asociados al éxito quirúrgico en estas fracturas. MATERIAL Y MÉTODOS: diseño transversal retrospectivo con datos secundarios de expedientes clínicos. Se evaluaron radiografías de 112 fracturas en planos posteroanterior y lateral por dos traumatólogos estandarizados en toma de mediciones para calcular cinco parámetros indicativos de éxito postquirúrgico: altura radial, inclinación radial, inclinación volar, varianza cubital y escalón articular. La reproducibilidad de distancias y ángulos se evaluó con el método de Bland-Altman calculando: diferencia media entre mediciones, rango a ± 2 DE y proporción de mediciones fuera de ± 2 DE. El éxito postquirúrgico se comparó en pacientes con/sin obesidad según la media de las dos mediciones de cada evaluador. RESULTADOS: el evaluador 1 tuvo la mayor diferencia intraobservador en altura radial (0.16 mm) y la mayor proporción fuera de ± 2 DE en varianza cubital (8.1%); el evaluador 2 tuvo la mayor diferencia en inclinación volar (1.92o) y la mayor proporción en inclinación radial (10.7%). La mayor diferencia interobservador fue en varianza cubital (1.02 mm) y la mayor proporción fuera de ± 2 DE en altura radial (5.4%). La inclinación radial tuvo la mayor diferencia (1.41o) con 4.5% de mediciones fuera de ± 2 DE. La varianza cubital y la inclinación volar tuvieron la mayor diferencia de éxito postquirúrgico entre evaluadores, sobre todo en pacientes con obesidad. CONCLUSIÓN: mejorar la calidad radiográfica y estandarizar las mediciones resulta en indicadores más reproducibles.

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Las fracturas del radio distal están entre las patologías más comunes en el área de la emergencia, actualmente los tratamientos más utilizados son la fijación con alambres de Kirschner y fijador externo (AKFE), o la osteosíntesis con placas volares de estabilidad angular (PVEA), realizamos un estudio comparativo de los resultados a corto plazo entre ambos métodos. Se realizó un estudio transversal, retrospectivo y descriptivo desde el 2005 al 2019, donde se revisaron las historias de los pacientes con fracturas de radio distal tratados con AKFE o PVEA, evaluando el alta después de la medición de la amplitud de movimiento articular funcional. Se incluyeron 68 pacientes, 47(69,11%) pacientes tratados con PVEA y 21(30,88%) con AKFE, la edad promedio fue de 53,07 años, la causa más común fue la caída de su altura en 60,29% casos, el alta médica por mejoría se realizó a las 15,95 semanas para AKFE y a las 9,86 semanas para PVEA (<0.05). La osteosíntesis con PVEA evidenció un menor tiempo de recuperación de la amplitud de movimiento articular con respecto a los pacientes tratados con AKFE(AU)

Fractures of the distal radius are among the most common pathologies in the emergency area, currently the treatment more frequently used are fixation with Kirschner wires and external fixator (KWEF), or osteosynthesis with angular stability volar plates (FAVP), we carried out a comparative study of the short-term results between both methods. This is a cross-sectional, retrospective and descriptive study from 2005 to 2019, where the histories of patients with distal radius fractures treated with KWEF or FAVP revised, evaluated, evaluating at discharge after functional joint range of motion was measured.68 patients were evaluated, 47 patients treated with FAVP and 21 with KWEF, average age of 53.07 years, the most common cause was the fall from his height with 60.29%, the medical discharge was made at 15,95 weeks for KWEF and 9,86 weeks for FAVP; with a t student<0.05 between them. Osteosynthesis with FAVP evidenced a shorter recovery time for joint range of motion compared to patients treated with KWEF(AU)

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A não união óssea é uma complicação ortopédica que ocorre normalmente devido à instabilidade da fratura em decorrência de uma escolha de fixação inadequada ou inapropriada, suprimento sanguíneo deficiente, osteomielite e afastamento excessivo dos fragmentos; sendo mais comumente em cães de raças pequenas e miniatura; e de maior ocorrência em regiões distais de rádio, ulna, tíbia e fíbula. Este trabalho relata a utilização da associação entre Hidroxiapatita e Plasma Rico em Plaqueta no tratamento de uma não união óssea de rádio e ulna e esclarece os benefícios desses biomateriais no processo de regeneração do tecido ósseo. O presente trabalho tem por objetivo relatar o caso de um canino com não união óssea de rádio/ulna devido ao alinhamento inadequado dos fragmentos ósseos no tratamento conservador com bandagem, proporcionando instabilidade do foco da fratura. O tratamento cirúrgico consistiu na colocação de uma placa óssea e enxertia com Hidroxiapatita e Plasma Rico em Plaqueta para melhor regeneração óssea. A utilização de tais biomateriais no tratamento da não união foi benéfica para a formação do calo ósseo primário, não produzindo efeitos adversos para o paciente. A partir desse resultado pode-se concluir que, a utilização desses biomateriais e enxertia precisa ser mais bem estudada e aprimorada na reparação óssea de uma não união, visto que, a aplicabilidade dessa associação mostrou-se um método eficiente, não apresentando sinais de infecção e nem evidência de rejeição.(AU)

Bone nonunion is an orthopedic complication that usually occurs due to fracture instability as a result of an inadequate or inappropriate choice of fixation, deficient blood supply, osteomyelitis, and excessive removal of fragments; which is more commonly seen in small and miniature breeds; and more frequent in the distal regions of radius, ulna, tibia, and fibula. This paper reports on the use of the association between Hydroxyapatite and Platelet-Rich Plasma in the treatment of a radius and ulna nonunion and clarifies the benefits of these biomaterials in the bone tissue regeneration process. This study reports the case of a dog presenting nonunion of radius and ulna bone due to inadequate alignment of bone fragments in a conservative treatment with bandage, providing instability of the fracture focus. The surgical treatment consisted of placing a bone plate and grafting with Hydroxyapatite and Platelet-Rich Plasma for better bone regeneration. The use of such biomaterials in the treatment of nonunion injuries was beneficial for the formation of the primary bone callus, without producing adverse effects for the patient. From this result, it can be concluded that the use of these biomaterials and grafting needs to be further studied and improved for use in bone repair of nonunion cases, since the applicability of this association proved to be an efficient method, with no signs of infection or evidence of rejection.(AU)

Ausencia de unión ósea es uma complicación ortopédica que normalmente ocurre debido a la instabilidade de la fractura como resultado de uma elección de fijación inadecuada o inapropriada, aporte sanguíneo deficiente, osteomielitis y remoción excessiva de fragmentos; que se observa com mayor frecuencia en perros de razas pequeñas y miniaturas; y más frecuente em regiones distales de radio, cúbito, tíbia y peroné. Este artículo informa sobre el uso de la asociación de Hidroxiapatita y Plasma rico en plaqueta en el tratamiento de ausencia de unión del radio e el cúbito, y aclara los benefícios de esos biomateriales en el processo de regeneración del tejido ósseo. Esa investigación ha tenido como objetivo reportar el caso de un perro sin unión de radio / cúbito por alineación inadecuada de fragmentos óseos en tratamiento conservador con vendaje, proporcionando inestabilidad del foco de la fractura. El tratamiento quirúrgico consistió en la colocación de una placa ósea e injerto con Hidroxiapatita y Plasma rico en plaqueta para uma mejor regeneración ósea. El uso de tales biomateriales en el tratamiento de ausencia de unión ha sido beneficioso para la formación del callo óseo primario, sin producir efectos adversos para el paciente. A partir de ese resultado se puede concluir que, el uso de esos biomateriales e injertos necesitan ser mejor estudiado y mejorado en la reparación de ausencia ósea, ya que la aplicabilidad de esa asociación demostró ser um método eficaz, sin presentar signos de infección y evidencia de rechazo.(AU)

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