Complejo ligamentoso lateral de la articulación talocrural (tobillo): biometría y patrones de división / Lateral ankle ligamentous complex: biometrics and division patterns

El complejo ligamentoso lateral de la articulación talocrural o «tobillo» (CLT) contempla básicamente tres estructuras denominadas como ligamento talofibular anterior (LTFA), ligamento calcaneofibular (LCF) y ligamento talofibular posterior (LTFP). En los últimos artículos publicados en relación con la morfología del CLT, se clasifica al LTFA en tres tipos, basada en el número de bandas o fascículos. Esta variabilidad morfológica plantea nuevos desafíos de estudios anatómicos en la biomecánica y estabilidad de la región talocrural. El objetivo de este estudio fue profundizar la anatomía de este complejo, en base a disecciones por capa que nos permitan visualizar las relaciones existentes entre estos ligamentos y estructuras aledañas. Se utilizaron 10 piezas congeladas pertenecientes al Departamento de Anatomía y Medicina Legal de la Facultad de Medicina de la Universidad de Chile, cuyos ligamentos fueron localizados y medidos en ancho y longitud. Para el LTFA se observó un patrón único en 5 muestras, bifurcado en 4, mientras que en un caso se visualizó un patrón trifurcado. El conocimiento del complejo ligamentoso lateral de tobillo, así como de su dirección, biometría y bandas o fascículos son un importante aporte para la imagenología, rehabilitación, clínica y cirugías que aborden esta región.

SUMMARY: The lateral ankle complex (LAC) basically includes three structures called anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL) and posterior talofibular ligament (PTFL). In recent works published in relation to the morphology of LAC, ATFL is classified into three types, based on the number of bands or fascicles. This morphological modification poses new challenges for anatomical studies in biomechanics and ankle stability. The objective of this is to deepen in greater detail the anatomy of this complex, based on dissections by layer that allow us to study the existing relationships between these ligaments and surrounding structures. 10 frozen pieces belonging to the Department of Anatomy and Legal Medicine of the Faculty of Medicine of the University of Chile were used; whose ligaments were located and measured in width and length. For ATFL, a single pattern was found in 5 samples, bifurcated in 4, while a trifurcated pattern was seen in one case. Knowledge of the lateral ligamentous complex of the ankle, as well as its direction, biometry and bands or fascicles, are an important contribution to imaging, rehabilitation, clinics and surgeries that address this region.

Síndrome del impacto posterior del tobillo secundario a proceso de Stieda / Posterior Ankle Impingement secondary to a Stieda process

Introducción: El síndrome de impacto posterior es una condición que resulta de la compresión de tejidos blandos entre la cara posterior del astrágalo y el área posteroinferior de la tibia durante el movimiento de flexión plantar del tobillo y provoca inflamación de los tejidos blandos circundantes. Objetivo: Presentar un caso de síndrome de impacto posterior secundario a proceso de Stieda. Presentación de caso: Se presenta el caso de un varón de 53 años, cocinero de profesión que se quejaba de dolor en la región posterior del tobillo derecho, que se exacerbaba con la flexión plantar del tobillo sin traumatismo previo. Se descartaron lesiones de tipo tendinosas y ligamentosas al examen físico, por lo que se indica radiografía convencional. A través de la radiografía de tobillo se define proceso de Stieda el cual justifica la clínica. Por esto no se realizaron otros estudios. Conclusiones: La radiografía convencional en el contexto clínico de un síndrome de impacto posterior del tobillo permite establecer el diagnóstico sin requerir estudios de imagen de mayor complejidad(AU)

Introduction: The posterior impingement syndrome is a condition resulted of compressed posterior soft tissues, between the posterior talus and the calcaneus. Classically, this is seen at activities that cause extreme plantar flexion. Objective: To describe a posterior Ankle Impingement case secondary to a Stieda process. Case report: We report a 53 years old male, cook profession, with a chronic pain history within the posterior ankle, previous trauma was denied. At clinical examination tendon and ligament injuries were not found. Initial evaluation with conventional radiography showed the presence of a Stieda's process as cause of clinical manifestations. No further imaging studies were required. Conclusion: Conventional radiograph allows to clarify diagnosis in the posterior impingement syndrome(AU)

Fatores de risco nas entorses de tornozelo em crianças e adolescente atletas: uma revisão integrativa / Risk factors for ankle sprains in children and adolescent athletes: an integrative review

Introdução: As entorses de tornozelo são as lesões em membros inferiores mais frequentes em crianças e adolescentes atletas. Identificar os fatores de risco envolvidos nas práticas esportivas auxilia o planejamento de estratégias preventivas dessas lesões. Objetivos: Revisar os dados disponíveis na literatura sobre os fatores de risco relacionados à ocorrência de entorse de tornozelo em crianças e adolescentes praticantes de esportes. Métodos: Trata-se de uma revisão integrativa da literatura realizada nos portais SciELO, PubMed e BVS. Foram incluídos trabalhos publicados entre 2015 e 2021, obtidos pelas combinações dos descritores "entorse", "tornozelo", "criança", "adolescente", "esportes" e "fatores de risco", que respondiam a questão de pesquisa: "Quais os fatores de risco para entorses de tornozelo em crianças e adolescentes praticantes de esportes?". Resultados: Nove estudos foram selecionados para revisão. Os fatores de risco associados a maior chance de ocorrência de entorse de tornozelo foram a história de entorse de tornozelo prévia, equilíbrio deficiente, déficit na força de extensão do quadril, maior repetição máxima no leg press, maior força isocinética do quadríceps, diferença entre as pernas em relação à força de abdução de quadril, sexo feminino, alto IMC, maior idade, tempo de prática maior que seis anos, jogo de basquete em relação ao jogo de futebol, alterações anatômicas como joelho recurvado e aumento da queda do navicular. Conclusão: A variedade de delineamentos de estudos, amostras e esportes abordados na literatura revisada resultou na identificação de diversos fatores de risco associados a entorses de tornozelo em crianças e adolescentes atletas.

Introduction: Ankle sprains are the most common lower limb injuries in children and teen athletes. Identifying risk factors related to sports helps elaborate strategies to prevent these injuries. Objectives: Review the literature's available data about risk factors related to the incidence of ankle sprains in children and teens who practice sports. Methods: It's an integrative literature review made in the portals SciELO, PubMed, and BVS. Were included articles published between 2015 and 2021, obtained by the combination of the descriptors: sprains, ankle, child, adolescent, sports, and risk factors, that answered the question: "Which are the risk factors for ankle sprains in children and teens who practice sports?". Results: Nine studies were selected to review. The risk factors associated with a greater chance of ankle sprains were: previous ankle sprain history, balance deficit, decrease in hip extension strength, higher one-repetition maximum at the leg press, higher quadriceps isokinetic strength, the difference between the legs related to hip abduction strength, feminine sex, high BMI, higher age, more than six years of playtime, the incidence in basketball is higher than in soccer, anatomical alterations like genu recurvatum, and navicular drop. Conclusion: The variety of outlines in the studies, samples, and sports addressed in the reviewed literature resulted in the identification of several risk factors related to ankle sprains in children and teen athletes.

Reconstruction of anterior talofibular ligament and calcaneofibular ligament with autologous peroneus brevis tendon in the treatment of chronic lateral ankle instability / 中国骨伤

OBJECTIVE@#To explore the clinical efficacy of reconstruction the anterior talofibular ligament and calcaneofibular ligament with autologous peroneus brevis tendon for the treatment of chronic lateral ankle instability.@*METHODS@#The clinical data of 42 patients with chronic lateral ankle instability treated by anatomical reconstruction of anterior talofibular ligament and calcaneofibular ligament with autologous peroneus brevis tendon from July 2016 to July 2019 was retrospectively analyzed. Including 30 males and 12 females, age ranged from 25 to 46 years old with an average of (37.6±12.4) years. There were 15 cases of left foot and 27 cases of right foot, the time from injury to operation was 3 to 12 months with a mean of (7.4±2.8) months. And 14 patients had tenderness in lateral collateral ligament area, 28 patients complained of multiple ankle sprains while walking on the flat ground. At 12 months after operation, the talar tilt angle and visual analogue scale(VAS)were observed, ankle joint varus stress and anterior drawer test were performed to check the mechanical stability of the ankle joint, American Orhopaedic Foot and Ankle Society(AOFAS) was used to score the ankle and hindfoot functions and evaluate the curative effect.@*RESULTS@#Forty patients were followed up for 12 to 48 months with an average of (28.3±10.0) months, 2 cases were lost. The VAS decreased from(4.50±0.93) scores before surgery to (1.10±0.30) scores at 12 months after surgery;the talar tilt angle was reduced from (12.26±1.13)° before operation to (4.60±0.45)° at 12 months after operation;the AOFAS score increased from (65.10±7.50)scores before surgery to (84.40±3.95) scores at 12 months after surgery;all the differences were statically significant(P<0.05). According to the AOFAS score, 27 cases got excellent results, 7 good, 5 fair, and 1 poor. One patient had the symptoms of sural nerve injury after operation, and the symptoms were relieved after oral Mecobalamin for 3 months. The remaining patients had no complications such as nerve injury, infection, and skin necrosis. There was no instability of ankle joint, and both ankle varus stress test and drawer test were negative.@*CONCLUSION@#Autologous peroneal brevis tendon with double bone channel pass through the tendon (modified Chrisman-Snook operation) can anatomically reconstruct the anterior talofibular ligament and the calcaneofibular ligament, restore the stability of the patient's ankle joint, reduce postoperative complications, and restore ankle joint function well.

Eficiencia de la técnica de Broström-Gould en el tratamiento quirúrgico de la inestabilidad lateral crónica de tobillo / Broström-Gould technique efficiency in chronic lateral ankle instability surgical treatment

Los déficits neuromusculares resultantes de las lesiones que comprometen al tobillo, facilitan la aparición de recidivas, por la afectación estructural que no sólo ocurre en los ligamentos, sino también en los nervios y tejido músculo-tendinoso, pudiendo provocar numerosas alteraciones asociadas que provocan inestabilidad crónica. El objetivo de este trabajo es analizar la eficiencia de la técnica de Broström modificada en pacientes con inestabilidad crónica del tobillo, atendidos en el Hospital Dr. Miguel Pérez Carreño y consulta privada entre noviembre 2016 y enero 2020. El tipo de investigación prospectiva, descriptiva, de campo clínico. La muestra la conformaron 31 pacientes. La edad promedio fue 34,4 años, la mayoría de género masculino, y con predominio en el tobillo derecho. Al aplicar la escala EVA en el pre y post quirúrgico, se observó disminución del grado de dolor postquirúrgico con una escala entre 0 y 4. La escala de Karlsson y Peterson aplicada en el lapso de 1 año después del período postquirúrgico a los pacientes, el 90 % estuvo entre 65 y 90 según escala que significa bueno y excelente. Entre la escala EVA y la de Karlsson y Peterson aplicados al año, se observó una relación entre la disminución del dolor y la buena y excelente evaluación funcional. La técnica de Broström modificada demostró tener muy buenos resultados en el tratamiento quirúrgico de la inestabilidad de tobillo(AU)

The neuromuscular deficits resulting from ankle injuries, make possible the appearance of recurrences, due the structural affectation that not only occurs in the ligaments, but also in nerves and muscle-tendon tissue, and can produce numerous associated alterations that cause ankle chronic instability. The objective is to analyze the efficiency of Broström modified technique in patients with chronic ankle instability, treated at the Dr. Miguel Pérez Carreño Hospital and private practice from November 2016 to January 2020. A prospective, descriptive and clinical study was made. 31 patients were included. The average age was 34,4 years, majority of male patients, and predominance of right ankle. When applying the VAS scale before and after surgery, a decrease in the degree of postoperative pain was observed with a scale between 0 and 4. The Karlsson and Peterson scale applied in the period of 1 year after the postoperative period to the patients, the 90% were between 65 and 90 according to a scale that means good and excellent. Between the VAS scale and the Karlsson and Peterson scale applied after one year, a relationship was observed between pain reduction and good and excellent functional evaluation. The modified Broström technique has shown to have very good results in the surgical treatment of ankle instability(AU)

Anatomical study on reconstruction of calcaneus fibula ligament / 中国骨伤

OBJECTIVE@#To measure anatomical data of calcaneofibular ligament (CFL), relevant data of CFL attachment to provide an anatomical basis for CFL reconstruction.@*METHODS@#Twenty-seven adult ankle specimens were selected, including 11 males and 16 females, aged from 22 to 71 years old with an average of (41.6±17.2) years old;9 cases on the left side and 18 cases on the right side. The specimens reserved at least 20 cm above ankle joint and a complete foot, and exclude deformities, fractures, incomplete development and degenerative lesions. CFL was performed detailed anatomical observation, morphological parameters of CFL was measured, and coordinates of fibula side and calcaneal side of CFL in the coordinate axis were measured. The distance between fibula insertion of CFL and fibula tip, distance between calcaneal insertion of CFL and lateral calcaneal nodule, and Angle between CFL and long axis of fibula were also measured.@*RESULTS@#In these 27 specimens, CFL cases were all single bundles and the length of CFL was (32.83 ± 8.19) mm. The center point of fibula attachment in CFL was(2.87± 1.21) mm proximal with a coefficient of variation of 42.16% and (2.08±1.34) mm anteriorly with a coefficient of variation of 64.42%. The center point of calcaneal attachment region of CFL was located on coordinate axis on the distal end (15.32±5.33) mm, with a coefficient of variation of 34.79%, and the posterior part (6.38±2.15) mm, with a coefficient of variation of 33.86%. The distance between center point of fibula attachment and fibula tip was (4.81±0.82) mm. The distance between center point of calcaneal attachment area of CFL and lateral calcaneal nodules was(17.25±3.12) mm. Angle between CFL and fibula axis is (43 ±18)° .@*CONCLUSION@#According to anatomical studies, we could locate the fibula and calcaneal attachment of CFL by anatomical markers around ankle joint. However, the location of CFL attachment has a large variation, and the anatomical characteristics need to be considered in anatomical reconstruction.

Anatomical reconstruction of lateral ligament complex with singletunnel pullout stutrue fixation for chronic lateral ankle instability / 中国骨伤

OBJECTIVE@#To explore clinical effects of single-tunnel pullout structure fixation and anatomical reconstruction of lateral ligament complex in treating chronic lateral ankle instability.@*METHODS@#From January 2016 to December 2018, clinical data of 23 patients with chronic lateral malleolus instability who underwent anatomical reconstruction of lateral malleolus ligament complex with single-tunnel pullout structure fixation, were retrospectively studied. Among them, including 7 males and 16 females, aged from 17 to 33 years old with an avergae of (26.0±4.3) years old;16 patients classified to grage 0, and 7 patients classified to gradeⅠaccording to Kellgren-Lawrence(K-L) grading;the time of sprain ranged form 2 to 15 with an average of (5.7±2.9) times;the time from injury to operation ranged to 4 to 18 months with an average of (9.0±3.3) months. The range of movement of operative and uninjured ankle joints were measured at 24 months after opertaion, visual analogue scale (VAS) and American Orthopaedic Foot and Ankle Society (AOFAS) were used to evaluate ankle joint function and improvement of pain, K-L grading and MRI scoring of osteoarthritis of ankle (MSOA) were used to evaluate degree of cartilage degeneration of ankle joint.@*RESULTS@#All patients were followed up from 24 to 48 months with an average of (33.4±6.7) months. All the anterior talofibular ligaments and calcaneofibular ligaments were dissected and reconstructed by single-tunnel pullout structure fixation. The range of motion of dorsiflexion, plantarflexion, varus, and valgus on the operative side of ankle joint were smaller than those on the healthy side. There were no statistically differences in dorsiflexion and eversion between operative side and healthy side of ankle joint (@*CONCLUSION@#Treatment of chronic lateral ankle instability with reconstruction of lateral ligament complex with single-tunnel pullout structure fixation could provide better tendon and bone healing conditions, improve surgical safety and could achieve satisfactory clinical outcomes.

Biomechanical analysis of ankle-foot complex during a typical Tai Chi movement-Brush Knee and Twist Step / 生物医学工程学杂志

The purpose of this study is to analyze the biomechanics of ankle cartilage and ligaments during a typical Tai Chi movement-Brush Knee and Twist Step (BKTS). The kinematic and kinetic data were acquired in one experienced male Tai Chi practitioner while performing BKTS and in normal walking. The measured parameters were used as loading and boundary conditions for further finite element analysis. This study showed that the contact stress of the ankle joint during BKTS was generally less than that during walking. However, the maximum tensile force of the anterior talofibular ligament, the calcaneofibular ligament and the posterior talofibular ligament during BKTS was 130 N, 169 N and 89 N, respectively, while it was only 57 N, 119 N and 48 N during walking. Therefore, patients with arthritis of the ankle can properly practice Tai Chi. Practitioners with sprained lateral ligaments of the ankle joint were suggested to properly reduce the ankle movement range during BKTS.

Ruptura crónica del tendón de Aquiles reconstruida con el tendón peroneo corto / Chronic Rupture of the Achilles tendon Reconstruction with the Peroneus Brevis Tendon

RESUMEN Introducción: La ruptura espontánea del tendón de Aquiles es una afección frecuente en los pacientes jóvenes que practican deportes. Cuando no se realiza el diagnóstico inicial, pasa a ser una lesión crónica, donde su diagnóstico y tratamiento es aún más complejo. En la mayoría de estos casos son necesarios los injertos tendinosos. Objetivo: Demostrar la eficacia y resultados clínicos funcionales de la reparación quirúrgica de la ruptura crónica del tendón de Aquiles mediante transferencia del tendón peroneo lateral corto. Presentación del caso: Paciente masculino de 38 años de edad con antecedentes de una caída mientras practicaba deportes. Se constató ruptura crónica del tendón de Aquiles. Se realizó una cirugía a cielo abierto, con transferencia tendinosa del tendón peroneo lateral corto hacia el cabo distal del tendón de Aquiles. Se reforzó la plastia con el tendón del plantar delgado. Se colocó una inmovilización tipo bota para el tobillo con 30o de flexión plantar por seis semanas. Pasado este tiempo, se colocó una bota de marcha y comenzó la deambulación, así como la rehabilitación con apoyo parcial hasta cumplir tres meses. A los seis meses se incorporó a su vida normal con adecuada función del pie y el tobillo. Conclusiones: La reparación quirúrgica de la ruptura crónica del tendón de Aquiles mediante transferencia del tendón peroneo lateral corto constituye un método eficaz y ofrece buenos resultados clínicos y funcionales(AU)

ABSTRACT Introduction: Spontaneous rupture of the Achilles tendon is a frequent condition in young patients who practice sports. When the initial diagnosis is not made, it becomes a chronic injury, consequently, diagnosis and treatment is even more complex. In most of these cases, tendon grafts are necessary. Objective: To demonstrate the efficacy and functional clinical results of the surgical repair of the chronic rupture of the Achilles tendon by transferring the short lateral peroneal tendon. Case report: We report the case of a 38-year-old male patient with a history of a fall while playing sports. A chronic rupture of the Achilles tendon was found. Open surgery was performed, the short lateral peroneal tendon was transferred to the distal end of the Achilles tendon. The plasty was reinforced with the thin plantar tendon. Ankle boot-type immobilization was placed with 30° plantar flexion for six weeks. After this time, the patient received a walker boot, ambulation and rehabilitation began. The latter started with partial support during three months. At six months this patient returned to his normal life with adequate foot and ankle function. Conclusions: Surgical repair of chronic Achilles tendon rupture by transferring the short lateral peroneal tendon is an effective method and offers good clinical and functional results(AU)

Biomechanical taping and standard physical therapy were effective in the management of acute ankle inversion sprain: A pre- and post- intervention study

BACKGROUND@#Ankle inversion sprain is a common musculoskeletal injury due to an inward foot twist. It results in pain, swelling, limited movement, instability, and tenderness of the injured ankle. Standard physical therapy (PT) for acute ankle inversion sprain involves cryotherapy, range of motion, balance, and strengthening exercises. Biomechanical Taping (BMT) is an adjunct to PT.@*OBJECTIVES@#To identify the short-term effects of BMT and PT on pain and function of individuals with acute ankle inversion sprains. @*METHODS@#Two licensed physiotherapists screened the participants. Eligible participants were treated 3x/week with BMT and PT, with a day of home exercises in between treatments. Participants answered the Visual Analogue Scale (VAS) and Foot and Ankle Ability Measure (FAAM). Friedman Test was used to determine differences in prepost measurements of VAS and FAAM.@*RESULTS@#17 participants (10 males: 7 females) with unilateral acute ankle inversion sprains were included in the study with a mean (95% CI) age of 21 (20-22) years. BMT and PT (a) decreased VAS mean rank scores at Treatments 3 and 5 (p<0.05); (b) improved FAAM-ADL mean rank scores in Treatments 1 and 3 (p<0.05); (c) improved FAAM-Sports mean rank scores in all Treatments (p<0.05); and (d) improved in VAS, FAAM ADL and Sports scores between Treatment 1, Treatment 2 and Treatment 3 (p<0.00001).@*CONCLUSION@#BMT may be an effective adjunct to PT in improving pain and function of participants with acute ankle inversion sprains. The increased stability created by BMT may underpin the improved pain and function of participants.

Epidemiology of injuries due to ankle sprain diagnosed in an orthopedic emergency room / Epidemiologia das lesões por entorse do tornozelo diagnosticadas em pronto atendimento de ortopedia

ABSTRACT Objective To use magnetic resonance imaging to assess the prevalence of foot and ankle ligament injuries and fractures associated with ankle sprain and not diagnosed by x-ray. Methods We included 180 consecutive patients with a history of ankle sprain, assessed at a primary care service in a 12-month period. Magnetic resonance imaging findings were recorded and described. Results Approximately 92% of patients had some type of injury shown on the magnetic resonance imaging. We found 379 ligament injuries, 9 osteochondral injuries, 19 tendinous injuries and 51 fractures. Only 14 magnetic resonance imaging tests (7.8%) did not show any sort of injury. We observed a positive relation between injuries of the lateral complex, syndesmosis and medial ligaments. However, there was a negative correlation between ankle ligament injuries and midfoot injuries. Conclusion There was a high rate of injuries secondary to ankle sprains. We found correlation between lateral ligament injuries and syndesmosis and deltoid injuries. We did not observe a relation between deltoid and syndesmosis injuries or between lateral ligamentous and subtalar injuries. Similarly, no relation was found between ankle and midfoot injuries.

RESUMO Objetivo Avaliar na ressonância magnética a prevalência das diferentes lesões ligamentares do tornozelo e do pé, bem como de fraturas não diagnosticáveis radiograficamente, em pacientes com queixa de entorse do tornozelo. Métodos Foram incluídos no estudo 180 pacientes consecutivos, com história de entorse do tornozelo, atendidos em um serviço de Atenção Primária no período de 12 meses. Os achados dos exames de ressonância magnética foram catalogados e descritos. Resultados Aproximadamente 92% dos pacientes apresentaram algum tipo de lesão na ressonância. Dentre as injúrias observadas, estavam 379 lesões ligamentares, 9 lesões osteocondrais, 19 lesões tendíneas e 51 fraturas. Apenas 14 ressonâncias magnéticas (7,8%) não mostraram qualquer tipo de lesão. Observamos relação positiva entre lesões do complexo lateral, sindesmose e medial. No entanto, houve correlação negativa entre lesões ligamentares do tornozelo e aquelas do mediopé. Conclusão Foi alta a ocorrência de lesões secundárias à entorse. Apontamos correlação entre as lesões ligamentares laterais com as sindesmodais e do deltoide. Não notamos relação entre as lesões do deltoide e da sindesmose, e nem entre as ligamentares laterais e a subtlalar. Também não foram observadas relações entre as lesões do tornozelo e as do mediopé.

Inestabilidad crónica lateral de tobillo. Técnica modificada / Chronic lateral ankle instability. Modified technique

Resumen: Introducción: La inestabilidad crónica de tobillo se define como un estado clínico caracterizado por la presencia de esguinces de repetición. Puede ser funcional o mecánica. Objetivo: El objetivo general del presente trabajo es determinar mediante la escala de AOFAS y radiografías, los resultados de la técnica de Broström-Gould modificada con anclas en pacientes con inestabilidad crónica lateral de tobillo en el Instituto Nacional de Rehabilitación (INR) en un período comprendido de 2008-2016. Material y métodos: Es un estudio transversal, prospectivo, descriptivo, con pacientes del INR que contaron con el diagnóstico de Inestabilidad crónica lateral de tobillo manejados mediante el procedimiento de Broström-Gould modificado con anclas. Resultados: Fueron 13 en seguimiento, un hombre y 12 mujeres, con promedio de edad de 38 años (± 13), con predominio del tobillo izquierdo siete (54%) sobre el derecho seis (46%). En la escala AOFAS, el promedio prequirúrgico obtenido fue de 39.3 (± 13.1) en comparación con el postquirurgico a seis meses de 73.4 (± 18). Conclusión: El uso de anclas aunado a la técnica de Broström-Gould modificado con anclas es una alternativa simple y efectiva, que permite la sustitución y/o reparación de los ligamentos peroneoastragalino anterior y peroneocalcáneo.

Abstract: Introduction: Chronic ankle instability is defined as a clinical condition characterized by the presence of repetitive sprains. It can be functional or mechanical. Objective: The general objective of this study is to determine the results of the technique using the AOFAS scale and radiographs. of Broström-Gould modified with anchors in patients with chronic lateral ankle instability in the INR in a period comprised of 2008-2016. Material and methods: This is a cross-sectional, prospective, descriptive study with INR patients who had the diagnosis of chronic lateral ankle instability managed using the Broström-Gould procedure modified with anchors. Results: 13 were in follow-up, 1 man and 12 women, with an average age of 38 years (± 13), with predominance of the left ankle 7 (54%) over the right 6 (46%). On the AOFAS scale, the pre-surgical average obtained was 39.3 (± 13.1) compared to the 6-month post-surgery of 73.4 (± 18). Conclusion: The use of anchors combined with the modified Broström-Gould technique with anchors is a simple and effective alternative that allows the replacement or repair of the anterior peroneal and peroneocalcaneal fibular ligaments.

Anatomical variations of the equine popliteal tendon

The function of the popliteal muscle and tendon in horses remains undescribed. In humans, it is considered a stabilizer of the posterior-lateral region of the knee; its function is closely related to that of the lateral collateral ligament (LCL) and meniscus. The popliteal tendon (PopT) constitutes the main proximal attachment of the popliteus muscle to the femur, and in humans, insertional variations have been described. Knowledge of anatomical variations is needed for the correct interpretation of diagnostic images and arthroscopic findings. To elucidate further the anatomy of the equine PopT, both hind limbs of 30 horses were dissected. Similar to humans, the equine PopT has 3 variants (types I, II, and III) depending on the number of components forming the tendon. Additionally, the area of insertion varies; the location can be either cranial, underneath, or caudal to the proximal insertion of the LCL. Furthermore, the PopT has a constant attachment to the lateral meniscus. The results of the present study are useful for clinicians working with equine orthopedics, as the tendon and insertional variants could affect the interpretation of diagnostic images and arthroscopic examinations.

Reliable measurements of physiologic ankle syndesmosis widening using dynamic 3D ultrasonography: a preliminary study

PURPOSE: The purpose of this study was to present a technique for measuring physiologic distal tibiofibular syndesmosis widening using 3-dimensional ultrasonography (3D-US) with an evaluation of its reliability, and to determine whether there were differences in the measurements between different dynamic stress tests. METHODS: We retrospectively evaluated 3D-US of 20 subjects with normal ankle syndesmosis. 3D-US was performed in neutral (N), dorsiflexion with external rotation (DFER), and weight-bearing standing (WB) positions at the anterior inferior tibiofibular ligament level in both ankles for comparison. Using 3D-US volume data, axial images were reconstructed at the level of the lateral prominence of the anterior tibial tubercle to ensure consistent measurements of the tibiofibular clear space (TFCS) by two radiologists. RESULTS: There was a wide range of TFCS values among the subjects (N, 1.2 to 4.2 mm; DFER, 2.3 to 4.8 mm; WB, 1.7 to 4.6 mm). When both ankles of each subject were evaluated, the side-to-side differences were less than 1 mm in all positions, with high intraclass correlation coefficient (ICC) values between both ankles (ICC, 0.85 to 0.93). The inter-rater agreement for all TFCS measurements between the two radiologists was excellent (ICC, 0.81 to 0.96). In comparisons between the two dynamic stress tests, the TFCS was significantly wider in the DFER position than in the WB position (DFER vs. WB, 3.3 mm vs. 2.9 mm; P<0.001). CONCLUSION: Using 3D-US, we were able to consistently evaluate the TFCS with good reliability. In a comparison of the two dynamic tests, there was more significant widening of the TFCS in the DFER position than in the WB position.

Mid-to-long term outcomes and influence factors of postoperative concurrent chronic ankle instability and posterior ankle impingement / 北京大学学报(医学版)

OBJECTIVE@#To investigate the mid-to-long-term efficacy of patients with chronic ankle instability combined with posterior impingement syndrome after 3-9 years of follow-up, and to analyze the influencing factors.@*METHODS@#From February 2010 to December 2015, 46 patients underwent concurrent lateral ankle ligament repair with posterior ankle arthroscopic surgery at the Institute of Sports Medicine, Peking University Third Hospital. The patient was first placed in a prone position and underwent arthroscopic debridement for the posterior impingement. After finishing the posterior arthroscopy, the surgeon and assistants first translated the patient to the affected side, then turned to the healthy side, and changed the position to the supine position. During the turning over, another assistant held the arthroscope and the instrument to ensure that it was sterile and could be used without replacement. The anterior ankle arthroscopy was operated if necessary and the lateral ankle ligament repair was anatomic repaired with anchors. The 42 patients were followed up, including 26 males and 16 females. The average age was (28.9±10.0) years. The patient's clinical symptoms, joint stability, mobility and motor function were compared by questionnaire and physical examination. The preoperative and postoperative visual analogue scale (VAS) scores, American Orthopaedic Foot and Ankle Society (AOFAS) scores, Tegner scores were compared, and the clinical scores and the patient age, gender, height and weight were compared. The correlations between body mass index (BMI), preoperative duration, surgery duration, and cartilage injury were analyzed.@*RESULTS@#The mean follow-up time was (71.8±22.8) months. The postoperative VAS scores (1.0 vs. 5.0, P<0.001), AOFAS scores (92 vs. 80, P<0.001), and Tegner scores (6.5 vs. 2, P<0.001) were significantly superior to the preoperative levels. The excellent and good rate was 97.6%. The postoperative VAS score (t=2.719, P=0.10), AOFAS score (t=-2.853, P=0.10), Tegner score (t=-3.443, P=0.001) and time to return exercise (t=2.814, P=0.008) were negatively correlated with the patient age, and the postoperative VAS score was negatively correlated with cartilage injury (Z=-2.195, P=0.028).@*CONCLUSION@#The mid-to-long-term clinical outcomes of the chronic ankle ligament instability combined with the posterior impingement were good. The age of the patients was negatively correlated with the clinical outcome. The combined cartilage injury could aggravate the postoperative pain.

Inestabilidad cronica lateral del tobillo: comparacion entre la reparacion de brostrom-gould y una tecnica artroscopica / Chronic Lateral Ankle Instability: Comparison Between Brostrom-Gould Repair And An Arthroscopic Technique

Introducción La inestabilidad crónica lateral del tobillo es una patología frecuente en las personas que sufren esguinces. El tratamiento inicial es conservador y de no funcionar se recomienda el tratamiento quirúrgico; la técnica descrita por Broström y modificada por Gould es la más utilizada, efectiva y reportada en la actualidad. Con el advenimiento de la cirugía artroscópica, uno de los autores (JBGG) ha desarrollado una técnica mínimamente invasiva que se ha utilizado en la unidad de pie desde hace 8 años. Este trabajo evalúa los resultados funcionales, de dolor y cicatrización de los pacientes tratados con la técnica Artroscópica y la técnica de Broström-Gould abierta. Materiales & Métodos Se evaluaron un total de 111 pacientes, 50 con la técnica abierta y 61 con técnica artroscópica, operados por inestabilidad lateral crónica del tobillo entre enero de 2004 y diciembre de 2011. Se utilizo la escala AOFAS de tobillo y retropié para la medición del dolor, función y alineación, y la escala EVA para la medición del dolor. Resultados El promedio de puntuación final de la escala AOFAS fue de 90 puntos y la inestabilidad se revirtió en el 96% de los casos, para ambos grupo de pacientes. El dolor fue aliviado eficientemente por ambas técnicas. No se observaron diferencias estadísticamente significativas entre los grupos del estudio. Discusión La reparación artroscópica de la inestabilidad crónica lateral del tobillo fue tan efectiva para restablecer la función, estabilidad y eliminar el dolor del tobillo como la técnica abierta y puede tener una menor posibilidad de complicaciones relacionadas con las heridas.

Background Chronic lateral ankle instability is a common condition in people with inversion sprains. Initial treatment is conservative, and if that does not work a surgical approach is recommended, such as that described by Broström and later modified by Gould, and is the most used and effective. With the advent of arthroscopic surgery, one of the authors (JBGG) has recently developed a minimally invasive technique that has been used in the Surgical Foot and Ankle Unit of Imbanaco Medical Centre for 8 years. Therefore, this work aims to determine functional outcomes of patients treated with the arthroscopic technique compared with the open technique of Broström-Gould. Methods A total of 111 patients were evaluated, including 50 with the open method, and 61 with arthroscopic surgery technique for chronic lateral ankle instability between January 2004 and December 2011. The American orthopaedic foot and ankle score (AOFAS) scale for ankle and hindfoot was used for measuring pain, function, and alignment, and a visual analogue scale (VAS) was used to assess the pain. Results The final AOFAS score was 90 points, and instability was reversed in 96% of cases, for both groups of patients. The pain was relieved efficiently by both techniques. There were no statistically significant differences between the study groups. Discussion Arthroscopic repair of chronic lateral ankle instability is an effective tool to restore the function and stability, as well as eliminate ankle pain, and is comparable in effectiveness with the conventional technique. Additionally, there is a lower chance of complications related to wounds.

Resultados clínicos y funcionales de la plastía Broström-Gould para inestabilidad lateral de tobillo: evaluación con tres escalas / Clinical and functional results of the Broström-Gould technique for lateral ankle instability: evaluation with three scales

Resumen: Antecedentes: La secuela más frecuente del esguince de tobillo es la inestabilidad del complejo ligamentario lateral; los resultados del tratamiento quirúrgico no han sido evaluados con varias escalas simultáneamente. El objetivo del estudio fue evaluar los resultados clínicos y funcionales con tres escalas en pacientes con inestabilidad lateral de tobillo sometidos a plastía de Broström-Gould, utilizando para su fijación anclas con sutura al peroné distal. Material y métodos: El diseño del estudio fue transversal y descriptivo; se incluyeron pacientes con inestabilidad lateral de tobillo y ruptura parcial o completa del ligamento PAA y/o PC, sometidos a reparación con plastía de Broström-Gould. Se realizó resonancia magnética nuclear para confirmar el diagnóstico; los resultados clínicos y funcionales se determinaron con tres escalas: EVA, SF-36 y AOFAS. Los pacientes fueron evaluados a los seis meses o más posteriores al procedimiento quirúrgico. Resultados: Se incluyeron 13 pacientes; la calidad de vida (cuestionario SF-36) arrojó un resultado bueno con promedio de 90; 10 (77%) pacientes mostraron resultados excelentes en la función, ausencia de dolor y alineación del tobillo (AOFAS 90-100). Asimismo, se observó mejoría importante en el dolor (EVA prequirúrgico: 6, comparado con 1 en el período postquirúrgico). Conclusiones: El procedimiento quirúrgico demostró excelentes resultados en el corto plazo con resolución del dolor y estabilidad del tobillo.

Abstract: Background: The most frequent sequel to the ankle sprain is the instability of the lateral ligament complex; the results of surgical treatment have not been evaluated with multiple scales simultaneously. The objective of the study was to assess the clinical and functional results with three scales in patients with lateral instability of ankle undergoing Broström-Gould technique, using for fixation, anchors with suture to distal fibula. Material and methods: The design of the study was cross-sectional and descriptive; we included patients with lateral instability of ankle and partial or complete rupture of the APA or CP ligament subject to repair with Broström-Gould technique. Magnetic resonance imaging was performed to confirm the diagnosis; clinical and functional outcomes were determined with three scales: EVA, SF-36 and AOFAS. Patients were evaluated at six months, or more, after the surgical procedure. Results: We included 13 patients; quality of life (SF-36 questionnaire) showed a good result with average score of 90; 10 (77%) patients showed excellent results in function, absence of pain and alignment of the ankle (AOFAS 90-100). Also found significant improvement in pain (presurgical EVA: 6, compared with 1 in the postoperative period). Conclusions: The surgical procedure showed excellent results, in the short term with resolution of pain and ankle stability.

Comminuted Radial Head Fracture in All-arthroscopic Repair of Elbow Fracture-dislocation: Is Partial Excision of the Radial Head an Acceptable Treatment Option?

BACKGROUND: In elbow fracture-dislocation, partial excision of the comminuted radial head fracture that is not amenable to fixation remains controversial considering the accompanying symptoms. This study was undertaken to evaluate the results of radial head partial excision when the comminuted radial head fracture involved < 50% of the articular surface in all-arthroscopic repair of elbow fracture-dislocation. METHODS: Patients were divided into two groups based on the condition of the radial head fracture. In Group A, the patients had a radial head comminuted fracture involving < 50% of the articular surface, and underwent arthroscopic partial excision. Group B was the non-excision group comprising patients with stable and non-displacement fractures. Follow-up consultations were conducted at 6 weeks and at 3, 6, 12, and 24 months after surgery. RESULTS: In all, 19 patients (Group A: 11; Group B: 8) met the inclusion criteria and were enrolled in the study. At the final follow-up, all 19 patients showed complete resolution of elbow instability. No significant differences were observed in the range of motion, visual analogue scale score, and Mayo elbow performance score between groups. Radiological findings did not show any complications of the radiocapitellar joint. However, nonunion of the coracoid fracture was observed in 3 patients (Group A: 1; Group B: 2), without any accompanying instability and clinical symptoms. CONCLUSIONS: Considering that the final outcome is coronoid fracture fixation and lateral collateral ligament complex repair for restoring elbow stability, arthroscopic partial excision for radial head comminuted fractures involving < 50% of articular surface is an effective and acceptable treatment for elbow fracture-dislocation.

Indications of Lateral Ankle Ligament Reconstruction with a Free Tendon and Associated Evidence / 대한족부족관절학회지

Ankle sprain is one of the most common musculoskeletal injuries. Although most ankle sprains respond well to conservative measures, chronic instability following an acute sprain has been reported to occur in 20% to 40% of patients. Some individuals are eventually indicated for a lateral ankle ligament reconstruction due to persistent ankle instability. More than 80 surgical procedures have been described to address lateral ankle stability. These range from direct repair of the anterior talofibular ligament (ATFL) and of the calcaneofibular ligament (CFL) to reconstructions based on the use of autograft or allograft tissues. However, the best surgical option remains debatable. The modified Broström procedure is most widely used for direct ligament repair, but not always possible because of the poor ATFL or CFL quality or deficiency of these ligaments, which prevents effective shortening imbrication. Furthermore, the importance of a CFL reconstruction has been emphasized recently. On the other hand, it is difficult to achieve an efficient CFL reconstruction during the Broström procedure. Others have reported that an anatomic reconstruction of injured ligaments restores the normal resistance to anterior translation and inversion without restricting subtalar or ankle motion, and as a result, anatomic reconstructions for lateral ankle instability utilizing an autograft or allograft tendon have gained popularity.

Does neuromuscular exercise training improve proprioception in ankle lateral ligament injury among athletes? Systematic review and meta-analysis / O treinamento neuromuscular melhora a propriocepção em lesão ligamentar lateral do tornozelo entre atletas? Revisão sistemática e metanálise

AIMS: The prevalence rate of ankle complexities is increasing at a constant rate among athletes. This study aimed to systematically describe the facts and findings related to the effectiveness of training programs on proprioception among athletes suffering from ankle ligament injury. METHODS: A literature search in online libraries ( Google Scholar, PubMed, EBSCOhost, and ProQuest) using different search engines was conducted for the systematic review and meta-analysis. The common keywords included NEUROMUSCULAR, EXERCISE, TRAINING, PROPRIOCEPTION, and ATHLETES. Studies related to the topic, having relevant resources, and published within the past 10 years were used as inclusion criteria. Methodological quality was assessed through PEDro scale. A meta-analysis of the selected trials was conducted to assess the effectiveness of intervention. RESULTS: Two hundred research articles were initially selected. After close scrutiny, 15 articles were included. Five moderate to excellent quality trials were selected, which involved 2,459 participants. It has been mainly identified that ankle sprain and its complications can be easily prevented with the help of training programs (five trials, relative risk: 0.69, 96%CI: 0.65-0.87). A statistically significant relationship was identified among athletes regarding the preventive impacts of training on proprioception. CONCLUSIONS: Preventive training programs were helpful for athletes in terms of proprioception, thus reducing the risk of ankle sprains.

OBJETIVOS: A taxa de prevalência de lesões no complexo ligamentar lateral vem aumentando entre os atletas a uma velocidade constante. Este estudo teve por objetivo descrever sistematicamente os achados relacionados à eficácia dos programas de treinamento na propriocepção entre atletas com lesão ligamentar do tornozelo. MÉTODOS: Foi realizada uma busca em bases de dados online ( Google Scholar, PubMed, EBSCOhost e ProQuest) com o uso de diferentes mecanismos de busca, para revisão sistemática e metanálise. Os descritores comuns foram NEUROMUSCULAR, EXERCISE, TRAINING, PROPRIOCEPTION, and ATHLETES. Os estudos relacionados ao assunto, os que continham recursos relevantes e aqueles publicados nos últimos 10 anos foram usados como critério de inclusão. A qualidade metodológica foi avaliada pela escala PEDro. Foi feita uma metanálise dos estudos selecionados a fim de avaliar a eficácia da intervenção. RESULTADOS: Inicialmente, foram selecionados 200 artigos de pesquisa. Após uma avaliação detalhada, restaram 15 artigos. Cinco estudos de qualidade moderada a excelente foram selecionados, totalizando 2.459 participantes. Verificou-se, principalmente, que o entorse de tornozelo e suas complicações podem ser evitados facilmente com o auxílio de programas de treinamento (cinco estudos, risco relativo: 0,69, IC 96%: 0,65-0,87). Observou-se uma relação estatisticamente significativa em termos dos efeitos preventivos do treinamento na propriocepção entre atletas. CONCLUSÕES: Os programas de treinamento preventivos foram úteis aos atletas em termos de propriocepção, reduzindo o risco de entorses de tornozelo.