RESUMO

Based on a V-shaped microactuator with a pair of beams, modifications were made to the length and width of a microactuator to observe the effects. A theoretical approach and numerical characterization of the modified microactuator were performed. Its performance was compared to a similar microactuator with equal beam widths, and a V-shaped microactuator. The proposed microactuator, fed at 2 V, compared to the V-shaped actuator, showed a 370.48% increase in force, but a 29.8% decrease in displacement. The equivalent von Mises stress level increased (until 74.2 MPa), but was below the silicon ultimate stress. When the modified microactuator was applied to the proposed microgripper, compared to the case using a V-shaped actuator, the displacement between the jaws increased from 0.85 µm to 4.85 µm, the force from 42.11 mN to 73.61 mN, and the natural frequency from 11.36 kHz to 37.99 kHz; although the temperature increased, on average, from 42 °C up to 73 °C, it is not a critical value for many microobjects. The maximum equivalent von Mises stress was equal to 68.65 MPa. Therefore, it has been demonstrated that the new modified microactuator with damping elements is useful for the proposed microgripper of novel geometry, while a reduced area is maintained.

RESUMO

Introducción: Se han descrito más de 300 técnicas quirúrgicas para la corrección del hallux valgus. Una de ellas es la técnica de Austin, la cual constituye una osteotomía capital en V con una angulación de 60º utilizada en el tratamiento quirúrgico del hallux valgus leve-moderado. Objetivos: Analizar el grado de corrección que tiene la osteotomía de Austin sobre diferentes parámetros radiológicos y describir la frecuencia con la que se utilizan técnicas complementarias sobre la falange proximal. Métodos: Se realizó un estudio descriptivo, transversal, observacional y retrospectivo. Se seleccionó una muestra de 29 pies intervenidos mediante la técnica de Austin, a los que se les realizaron varias mediciones sobre sus radiografías pre y posoperatorias con AutoCAD®. Resultados: Se obtuvieron diferencias estadísticamente significativas en todos los parámetros evaluados. Conclusiones: Esta técnica corrige significativamente todos los parámetros analizados. Se demuestra que el uso de técnicas quirúrgicas complementarias sobre la falange proximal es bastante frecuente al realizar esta osteotomía(AU)

Introduction: More than 300 surgical techniques have been described for the correction of hallux valgus. One of them is the Austin technique, which constitutes a capital V osteotomy with an angulation of 60º used in the surgical treatment of mild-moderate hallux valgus. Objectives: To analyze the degree of correction that Austin osteotomy has on different radiological parameters and to describe the frequency with which complementary techniques are used on the proximal phalanx. Methods: A descriptive, cross-sectional, observational and retrospective study was carried out in a sample of 29 feet operated on using the Austin technique. Several measurements were made on their pre- and postoperative radiographs with AutoCAD®. Results: Statistically significant differences were obtained in all the parameters evaluated. Conclusions: This technique significantly corrects all the parameters analyzed. It is shown that the use of complementary surgical techniques on the proximal phalanx is quite frequent when performing this osteotomy(AU)

Assuntos

RESUMO

PURPOSE: Treatment for hallux valgus (HV) remains challenging. Third-generation percutaneous procedures try to reproduce chevron-type osteotomies to replicate their benefits, such as intrinsic stability and reproducibility. We report the first results using a percutaneous, intra-articular, chevron osteotomy (PeICO) technique that mimics the classic intra-articular open chevron procedure, associated with a percutaneous adductor tendon release (PATR) for the treatment of mild-to-moderate HV. METHODS: From May 2015 to October 2018, a total of consecutive 114 feet (74 patients) were included. Primary outcome measures included radiographic (hallux valgus and intermetatarsal angles) and clinical parameters such as visual analog scale (VAS), FAAM Activities of Daily Living (ADL), and FAAM Sport, AOFAS Score, and MOXFQ, preoperatively and at final follow-up (Minimum 18 months). A patient satisfaction survey was also performed. Pronation and length of the first metatarsal were also assessed. Secondary outcomes included fluoroscopic time, length of surgery, complications, recurrence, and re-operation rates. RESULTS: At 24.09 months on average, the AOFAS score improved from 52.1 points preoperatively to 91.1 (p < 0.001) at the latest follow-up. VAS decreased from 6.3 to 1. Also, FAAM ALD, FAAM Sport, and MOXFQ showed statistically significant differences (p < 0.001) when comparing pre-operative and post-operative periods. Patients found the procedure to be excellent in 82% and very good in 13.5% of cases. Our global complication and re-operation rates were 5.26% and 3.5% (screw removal), respectively. CONCLUSION: PeICO combined with PATR proved to be a safe, reliable, and effective technique for the correction of mild-to-moderate HV deformity.

Assuntos

RESUMO

Resumen: Introducción: Hallux valgus (HV) es una patología compleja del antepié, recientemente se ha mostrado interés en el componente rotacional (CR) distal del primer metatarsiano por su relación con recidivas postquirúrgicas de la deformidad. La selección de la técnica quirúrgica es controversial con escasa literatura acerca de la corrección de rotación con osteotomías comunes. Nuestro objetivo es evaluar características radiológicas prequirúrgicas y postquirúrgicas respecto a CR del primer metatarsiano en la cirugía de corrección de HV moderado a severo usando osteotomía de Chevron largo. Material y métodos: Estudio observacional, prospectivo y comparativo en el que se evaluó el CR del primer metatarsiano en nueve pies pertenecientes a seis pacientes con una edad media de 45 años. El CR fue evaluado con base en la metáfisis proximal del primer metatarsiano en fluoroscopías axiales sin carga y AP de pie. Las mediciones se realizaron por un residente de ortopedia y traumatología y un subespecialista en cirugía de pie y Tobillo. Resultados: Se documentaron diferencias significativas (p = 0.05) en el ángulo de pronación prequirúrgico y postquirúrgico al utilizar osteotomía de Chevron largo. El resultado funcional de los pacientes evaluados fue excelente a 11 meses de seguimiento. Conclusiones: Radiológicamente, la corrección rotacional es variable y previamente no se ha reportado en la literatura con esta osteotomía. Se establecen bases morfológicas para la realización de estudios posteriores en la evaluación de rotación de cabeza del primer metatarsiano con diferentes osteotomías.

Abstract: Introduction. Hallux valgus (HV) is a complex forefoot pathology, in which interest has recently been shown in the distal rotational component (CR) of the first metatarsal due to its relationship with postsurgical relapses of the deformity. The selection of surgical technique is controversial with little current literature on the correction of rotation with common osteotomies. The aim of this study is to evaluate preoperative and postoperative radiological characteristics regarding CR of the first metatarsal using long Chevron osteotomy for moderate to severe HV. Material and methods: An observational, prospective and comparative study was carried out in which the CR of the first metatarsal was evaluated in nine feet belonging to six patients with a mean age of 45 years. The RC was evaluated based on the proximal metaphysis of the first metatarsal in axial fluoroscopies of unloaded metatarsals and standing AP. Measurements were performed by an Orthopedic and Traumatology resident and a Foot and Ankle Surgery subspecialist. Results: Significant differences (p = 0.05) were documented in the preoperative and postoperative pronation angle when using long Chevron osteotomy. The functional result of the evaluated patients was excellent at 11 months of follow-up. Conclusions: Radiologically, the rotational correction is variable and has not previously been reported in the literature with this osteotomy. We establishes the morphological bases for the performance of subsequent studies in the evaluation of head rotation of the 1st metatarsal with different osteotomies.

Assuntos

RESUMO

We describe four new Glaphyrosoma species: G. brevivaginalis n. sp., G. huasteca n. sp., G. paragracile n. sp. and G. unumtympana n. sp. We redescribe and provide new distributional data for G. gracile, G. mexicanum and G. stephanosoltis. The subfamily status to tribe Glaphyrosomatini is proposed and a key to identify the genera is provided. The key to Glaphyrosoma species is updated to include the species here described. Finally, we present karyotype data and drumming information for selected species.

Assuntos

RESUMO

Anabropsis homerogomezi n. sp. from the state of Michoacán, Mexico, is described in memory of Homero Gómez, the defender of the monarch butterfly who disappeared in Mexico and whose work "affected the interests" of illegal loggers. Pteranabropsis rehni (Griffini, 1909) n. comb. the only Anabropsis species reported for Africa, is proposed as a new combination, restricting the distribution of Anabropsis to the New World. Finally, the taxonomic debates and organization of the subfamily Anabropsinae and the peculiarities of the new species are discussed in contrast to the other Anabropsis species.

Assuntos

RESUMO

INTRODUCTION.: Hallux valgus (HV) is a complex forefoot pathology, in which interest has recently been shown in the distal rotational component (CR) of the first metatarsal due to its relationship with postsurgical relapses of the deformity. The selection of surgical technique is controversial with little current literature on the correction of rotation with common osteotomies. The aim of this study is to evaluate preoperative and postoperative radiological characteristics regarding CR of the first metatarsal using long Chevron osteotomy for moderate to severe HV. MATERIAL AND METHODS: An observational, prospective and comparative study was carried out in which the CR of the first metatarsal was evaluated in nine feet belonging to six patients with a mean age of 45 years. The RC was evaluated based on the proximal metaphysis of the first metatarsal in axial fluoroscopies of unloaded metatarsals and standing AP. Measurements were performed by an Orthopedic and Traumatology resident and a Foot and Ankle Surgery subspecialist. RESULTS: Significant differences (p = 0.05) were documented in the preoperative and postoperative pronation angle when using long Chevron osteotomy. The functional result of the evaluated patients was excellent at 11 months of follow-up. CONCLUSIONS: Radiologically, the rotational correction is variable and has not previously been reported in the literature with this osteotomy. We establishes the morphological bases for the performance of subsequent studies in the evaluation of head rotation of the 1st metatarsal with different osteotomies.

INTRODUCCIÓN: Hallux valgus (HV) es una patología compleja del antepié, recientemente se ha mostrado interés en el componente rotacional (CR) distal del primer metatarsiano por su relación con recidivas postquirúrgicas de la deformidad. La selección de la técnica quirúrgica es controversial con escasa literatura acerca de la corrección de rotación con osteotomías comunes. Nuestro objetivo es evaluar características radiológicas prequirúrgicas y postquirúrgicas respecto a CR del primer metatarsiano en la cirugía de corrección de HV moderado a severo usando osteotomía de Chevron largo. MATERIAL Y MÉTODOS: Estudio observacional, prospectivo y comparativo en el que se evaluó el CR del primer metatarsiano en nueve pies pertenecientes a seis pacientes con una edad media de 45 años. El CR fue evaluado con base en la metáfisis proximal del primer metatarsiano en fluoroscopías axiales sin carga y AP de pie. Las mediciones se realizaron por un residente de ortopedia y traumatología y un subespecialista en cirugía de pie y Tobillo. RESULTADOS: Se documentaron diferencias significativas (p = 0.05) en el ángulo de pronación prequirúrgico y postquirúrgico al utilizar osteotomía de Chevron largo. El resultado funcional de los pacientes evaluados fue excelente a 11 meses de seguimiento. CONCLUSIONES: Radiológicamente, la corrección rotacional es variable y previamente no se ha reportado en la literatura con esta osteotomía. Se establecen bases morfológicas para la realización de estudios posteriores en la evaluación de rotación de cabeza del primer metatarsiano con diferentes osteotomías.

Assuntos

RESUMO

BACKGROUND: Percutaneous surgery is experiencing sustained growth based on third-generation techniques. This cadaveric study was designed with the main goal of exploring the risk of iatrogenic tendon and neurovascular lesions and defining the safe zones in a percutaneous, intra-articular, chevron osteotomy (PeICO) procedure, as well as assessing the accuracy of the osteotomy itself. METHODS: Eight feet from below-knee fresh-frozen specimens were selected. After the procedure, the specimens were dissected, and structures were inspected for damage. RESULTS: The results of the safety measurements were as follows: (1) distance between portal 1 (P1) and the lateral border of the extensor hallucis longus (EHL) tendon: average 17.6 mm (range 12.7-21.3); (2) distance between P1 and the dorsomedial digital nerve (DMDN): average 7.2 mm (range 1.6-10.4); (3) distance between P1 and the metatarsophalangeal joint: average 15.7 mm (range 9.4-20.5); distance between portal 2 (P2), or the osteosynthesis portal, and the metatarsophalangeal joint: average 25.5 mm (range 22-30.4); distance between P2 and the lateral border of the EHL tendon: average 12.7 mm (range 8-16.7); and distance between P2 and the DMDN: average 4.1 mm (range 1.7-8.2). There were no iatrogenic injuries. The osteotomy angulation in the sagittal plane (reproducibility) average was 85.6 degrees. CONCLUSION: There were no iatrogenic injuries on this cadaveric study of PeICO. CLINICAL RELEVANCE: This study will help orthopedic surgeons understand the risks of performing percutaneous surgery by mimicking an accepted open technique (chevron).

Assuntos

RESUMO

Introducción: El objetivo de este estudio fue analizar los resultados radiológicos de una osteotomía en tejadillo (Chevron) del primer metatarsiano, con técnica mínimamente invasiva, en una población uniforme de pacientes (hallux valgus moderado). Materiales y Métodos: Entre octubre de 2013 y noviembre de 2014, se trató el hallux valgus mediante una osteotomía en tejadillo (Chevron) del primer metatarsiano con técnica mínimamente invasiva, en 24 pies correspondientes a 21 pacientes, todos con diagnóstico de hallux valgus moderado. Resultados: El ángulo intermetatarsiano preoperatorio promedio entre el primero y el segundo metatarsiano fue de 12,46° (rango 11-15°; desviación estándar 1,03). En el posoperatorio, se obtuvo un valor promedio de 8,13° (rango 5-10°; desviación estándar 1,16). La corrección angular promedio fue de 4,33°. El ángulo de hallux valgus preoperatorio promedio fue de 33,96° (rango 20-40°; desviación estándar 4,93). En el posoperatorio, el ángulo metatarsofalángico promedio fue de 8,16° (rango 3-15°; desviación estándar 2,86). La mejoría promedio del ángulo metatarsofalángico fue de 25,86°. Conclusiones: La corrección radiológica obtenida mediante la técnica mínimamente invasiva de la osteotomía en tejadillo confirma que es un procedimiento seguro y eficaz para el tratamiento del hallux valgus moderado, con correcciones angulares satisfactorias a mediano plazo. Este procedimiento remeda, de manera fidedigna, la técnica quirúrgica abierta con todos sus beneficios conocidos y no se encontró un estudio equivalente en la bibliografía. Nivel de Evidencia: IV

Introduction: The aim of this study was to analyze the radiological results of a roof (Chevron) osteotomy with a minimally invasive surgery technique of the first metatarsal in a uniform population of patients with moderate hallux valgus. Methods: Between October 2013 and November 2014, the hallux valgus was treated with a roof (Chevron) osteotomy using a minimally invasive technique of the first metatarsal in 24 feet of 21patients. All had a diagnosis of moderate hallux valgus. Results: The mean preoperative intermetatarsal angle between M1 and M2 was 12.46° (range: 11-15°, SD 1.03). Postoperatively, the mean intermetatarsal angle was 8.13° (range: 5-10°; SD 1.16), with an average angular correction of 4.33°. The mean hallux valgus angle was 33.96° (range: 20-40°; SD 4.93) before surgery and the average postoperative metatarsal-phalangeal angle was 8.16° (range: 3-15°, SD 2.86), thus improving an average of 25.86°. Conclusions: Radiological results with the minimally invasive technique (Chevron osteotomy) confirm that this procedure is safe and effective for the treatment of moderate hallux valgus, with mid-term satisfactory angular correction. This method reliably mimics the open Chevron surgical technique retaining all its known benefits. To our knowledge, no equivalent study was found in the literature. Level of Evidence: IV

Assuntos

RESUMO

BACKGROUND: Different surgical techniques are available to correct each type of Hallux Valgus (HV) deformity, and all present similar good results. No information is available relative to the cost of each technique compared to their individual success. OBJECTIVE: To determine the cost-effectiveness-ratio (CER) of five different techniques for HV. METHODS: We included 245HV surgeries performed in 179 patients. The severity was defined according to radiological parameters. For mild to moderate HV we included the Chevron, Modified-Scarf and Ludloff techniques; for severe HV: either Poscow-osteotomy or Lapidus-arthrodesis fixed with plates or screws. Weighted costs were estimated. CER was expressed in $US dollars per AOFAS-point. RESULTS: The lowest weighted cost was observed for the Chevron-group, and the highest weighted cost was observed in the Poscow-osteotomy and Lapidus-arthrodesis fixed with plate groups. The AOFAS-score improvement was higher in the Chevron and Modified-Scarf groups. The CER found for Chevron and Modified-Scarf techniques were significantly less than for Poscow and Lapidus-techniques. CONCLUSION: Cost-Effectiveness-Ratio was lower, and therefore better, in the groups with mild to moderate deformities operated with Chevron or Modified-Scarf techniques. In severe HV, the three techniques investigated presented similar CER. CER analysis is an additional factor that can be included in the decision making analysis in hallux valgus surgery. Level of Evidence Level IV, Retrospective Study.

Assuntos

RESUMO

Introducción: la osteotomía en chevron modificada ha estado presente en numerosos artículos que tratan sobre el tratamiento de los Hallux valgus moderados y severos. Se presenta nuestra experiencia mediante la cirugía percutánea. Objetivo: mostrar la efectividad de la osteotomía en chevron modificada mediante cirugía percutánea en el tratamiento de los Hallux valgus moderados y severos. Método: estudio retrospectivo de 28 pacientes intervenidos de Hallux valgus moderados y severos entre abril y diciembre de 2013, con una media de edad de 59 años. El seguimiento mínimo fue de 1 año de evolución. Se valoró el ángulo de Hallux valgus, el intermetatarsiano y el ángulo metatarso distal articular y se determinó la posición de los sesamoideos. La osteotomía en chevron se fijó con un tornillo canulado de doble rosca también de forma percutánea. Resultados: el ángulo de Hallux valgus pasó de 34,96° ± 9,8 en el preoperatorio a 12,6° ± 5,2 en el posoperatorio. El ángulo intermetatarsiano de 15,56° ± 3,2 en el preoperatorio se redujo a 10,44° ± 3,1 en el posoperatorio. El ángulo ángulo metatarso distal articular pasó de 21,20° ± 6,0 en el preoperatorio a 9,36° ± 6,5 en el posoperatorio. Conclusiones: la osteotomía en chevron modificada percutánea tiene resultados similares a los de la cirugía abierta, con la gran ventaja de no realizar incisiones en el pie, lo que disminuye complicaciones habituales como la infección. Es importante la curva de aprendizaje dado que no es una técnica exenta de complicaciones(AU)

Introduction: modified chevron osteotomy has been present in numerous articles dealing with the treatment of moderate and severe Hallux valgus. Our experience with percutaneous surgery is presented here. Objective: show the effectiveness of modified chevron osteotomy with percutaneous surgery in the treatment of moderate and severe Hallux valgus. Methods: a retrospective study was conducted on 28 patients undergoing moderate and severe hallux valgus from April to December 2013, with an average age of 59 years. Minimum follow-up period was 1 year of evolution. Hallux valgus angle, intermetatarsal and distal metatarsal joint angle were evaluated and sesamoid position was determined. Chevron osteotomy was fixed with a cannulated double threaded screw also percutaneously. Results: Hallux valgus angle increased from 34.96 ± 9.8° preoperatively to 12.6° ± 5.2 postoperatively. The intermetatarsal angle of 15.56° ± 3.2 preoperatively decreased to 10.44 ± 3.1° postoperatively. The distal metatarsal articular angle increased from 21.20° ± 6.0 preoperatively to 6.5 ± 9.36° postoperatively. Conclusions: percutaneous modified chevron osteotomy has similar results to those of open surgery, with the great advantage of not making incisions in the foot, reducing common complications such as infection. Learning curve is important since it is not free of complications(AU)

Introduction: l'ostéotomie en chevron modifiée a été présente dans nombreux articles abordant le traitement de l'hallux valgus modéré et sévère. Un nouveau traitement par chirurgie percutanée est présenté. Objectif: le but de ce travail est de montrer l'efficacité de l'ostéotomie en chevron modifiée par chirurgie percutanée dans le traitement de l'hallux valgus modéré et sévère. Méthode: Une étude rétrospective de 28 patients (âge moyen de 59 ans) traités pour hallux valgus modéré et sévère a été réalisée entre avril et décembre 2013. Le suivi minimal a eu un an de durée. On a évalué l'angle de valgus, l'angle intermétatarsien et l'angle articulaire distal métatarsien, et on a également déterminé la position des sésamoïdiens. L'ostéotomie en chevron a été fixée par vis canulé à double filetage par voie percutanée. Résultats: l'angle de valgus a changé de 34.96° ± 9.8 en préopératoire à 12.6° ± 5.2 en postopératoire. L'angle intermétatarsien est réduit de 15.56° ± 3.2 en préopératoire à 10.44° ± 3.1 en postopératoire. L'angle articulaire distal métatarsien a diminué de 21.20° ± 6.0 en préopératoire à 9.36° ± 6.5 en postopératoire. Conclusions: l'ostéotomie percutanée en chevron modifiée a des résultats similaires à la chirurgie ouverte. L'avantage le plus remarquable de cette technique est l'absence d'incisions importantes au niveau du pied, ce qui diminue la survenue des complications habituelles telles que l'infection. Toutefois, la courbe d'apprentissage est très importante, car cette technique n'est pas exceptée de complications(AU)

Assuntos

RESUMO

Objective: To evaluate clinical outcomes in Hallux Valgus surgery and suggest clinical guidelines. Materials and Methods: Between 2005 and 2007, 60 surgeries were realized in 39 patients. Exclusion criteria were RA, HV revision and Neuropathic Foot. Two different procedures were performed: Chevron osteotomy (if IM angle < 16°) or First Cuneo-metatarsal arthrodesis (Modified Lapidus, if IM > 16°). Akin Osteotomy was realized if HV angle was > 30°, regardless of IM angle. Pre and postoperatively IM and HV angles were compared using weight bearing radiographs. Functional outcomes were evaluated using AOFAS score. Results: Mean follow up was 25 months. Mean IM angle correction was 4.3º and 9.2ºwith Chevron osteotomy and Lapidus procedure, respectively. Isolated Chevron corrected HV angle in 7.7°, Chevron with Akin: 18.5°, isolated Lapidus:12.4° and Lapidus with Akin: 20.2°. Isolated Chevron group improved their AOFAS score in 35 points, Chevron with Akin group in 32 points, Isolated Lapidus in 28 points and Lapidus with Akin group in 37 points. Discussion: Chevron osteotomy and Lapidus arthrodesis provide a reliable procedure with good functional outcomes in the mid term follow up.

Objetivo: Evaluar los resultados obtenidos en el manejo del hallux valgusy sugerir protocolos de manejo que faciliten la toma de decisiones. Materiales y Métodos: Se recolectó información completa en 39 pacientes en los cuales se realizaron 60 cirugías entre el 2005 al 2007, excluyendo aquellos con diagnóstico de AR, Pie Neurológico y HV Recidivante. Se realizaron 2 tipos de procedimientos: Osteotomía de Chevron cuando el ángulo Intermetatarsiano era menor de 16° y Artrodesis Cuneo-Metatarsiana tipo Lapidus Modificado cuando era mayor de 16°. Cuando se encontró un ángulo Metatarso-Falángico mayor de 30°, se realizó la Osteotomía de Akin como procedimiento complementario. Los pacientes fueron estudiados con radiografías convencionales con carga en el post operatorio. Resultados: Con Chevron, la corrección del ángulo IMT fue de 4,3° y con Lapidus fue de 9,2°. En el subgrupo de Chevron aislado, se logró corregir el ángulo MTF en 7,7°, en Chevron + Akin: 18,5°, en Lapidus aislado: 12,4° y en Lapidus + Akin: 20,2°. En la evaluación de la escala AOFAS, el grupo de Chevron aislado mejoró un promedio de 35 puntos, Chevron + Akin mejoró 32,1 puntos, Lapidus aislado mejoró 28,4 puntos y el grupo de Lapidus + Akin mejoró 37 puntos. Como complicación, un evento aislado de Infección de Sitio Operatorio en uno de los pacientes del grupo Chevron aislado (tasa infección total: 1,6 por ciento). La Osteotomía de Chevron, así como la Artrodesis tipo Lapidus, son seguros, tienen baja tasa de complicaciones y presentan buenos resultados funcionales en el seguimiento a corto y mediano plazo.

Assuntos

RESUMO

Os autores avaliaram e correlacionaram escores objetivos (escala AOFAS e correção angular) e subjetivos (questionário de qualidade de vida SF-36 e escala de satisfação subjetiva de Johnson) após tratamento cirúrgico de 20 pacientes (34 pés) portadores de hálux valgo dolorosos tratados com osteotomia distal do primeiro metatarsiano pela técnica em Chevron. A avaliação objetiva foi realizada através do escore AOFAS e pelo grau de correção angular pós-operatório do ângulo de valgismo do hálux (AVH), ângulo intermetatarsal I-II (AIM I-II), ângulo articular metatarsal distal (AAMD) e deslocamento dos sesamoides (DS). A avaliação subjetiva foi feita por meio de entrevista durante o seguimento pós-operatório através da aplicação do questionário de qualidade de vida SF-36 e escala de satisfação subjetiva de Johnson. A associação entre as avaliações objetivas e subjetivas foram medidas pelo coeficiente de correlação r que mede a força de associação entre duas variáveis. Houve melhora significativa (p < 0,05) em todos os parâmetros angulares. A pontuação alcançada no escore AOFAS mostrou ter relação direta com os resultados do SF-36 e com o grau de correção angular (principalmente AVH e AIM I-II), mas não com a escala de satisfação subjetiva de Johnson. Concluímos que: a pontuação obtida no AOFAS para hálux é influenciada pelo grau de correção do AVH e AIM I-II a despeito da pontuação obtida no escore AOFAS o grau de satisfação subjetiva não apresentou relação com esse escore a qualidade de vida (SF-36) era melhor nos pacientes com pontuação AOFAS elevada.