Tratamiento artroscópico de sinovitis villonodular pigmentada de tobillo: reporte de caso y revisión de literatura / Arthroscopic treatment of pigmented villonodular synovitis of the ankle: a clinical case report and review

La sinovitis villonodular pigmentada es un tumor benigno del tejido sinovial de muy baja incidencia. El compromiso de tobillo es aún menos frecuente. Se requiere diagnóstico y manejo precoz para evitar secuelas funcionales y mecánicas irreversibles. Se manifiesta inicialmente con aumento de volumen de partes blandas, edema o derrame articular y puede evolucionar con dolor progresivo y daño articular avanzado. Existe una forma focal y una difusa, siendo esta última la de peor pronóstico. El examen diagnóstico de elección es la resonancia magnética, confirmándose por biopsia en la que se observa tejido sinovial inflamatorio con depósitos de hemosiderina. El tratamiento es quirúrgico y consiste en sinovectomía abierta o artroscópica. La recurrencia es de hasta un 40%, por lo que están descritas terapias coadyuvantes biológicas y radioterapia. Este artículo expone el caso de un hombre de 30 años que consulta por dolor y claudicación del tobillo izquierdo, encontrándose en el estudio imagenológico (resonancia magnética) hallazgos compatibles con sinovitis villonodular pigmentada difusa del tobillo, con extensión a la articulación subtalar, por lo que se realiza artroscopía para tratamiento y biopsia. En este reporte de caso se ilustran los resultados con este paciente y una revisión bibliográfica del tema.

Pigmented villonodular synovitis is a benign tumor of synovial tissue with a very low incidence. Ankle location is even less frequent. Early diagnosis and management are required to avoid irreversible functional and mechanical sequelae. The clinical presentation starts with edema or joint effusion and may progress with pain and advanced joint degenerative changes. Pigmented villonodular synovitis can be focal or diffuse, the latter being the type with the worst prognosis. When suspected, magnetic resonance imaging is performed, and the diagnosis confirmed with a biopsy in which synovial inflammatory tissue with hemosiderin deposits is observed. An open or arthroscopic synovectomy is preferred over surgical management. Recurrence is up to 40%, which is why biological coadjutant therapies and radiotherapy are described. This article presents the case of a 30-year-old man who presented with pain and claudication of the left ankle; the imaging study findings were compatible with diffuse pigmented villonodular synovitis of the ankle with extension to the subtalar joint, leading to arthroscopy for treatment and biopsy. This case report illustrates the results with this patient and a literature review of the subject.

Análisis de la displasia epifisaria hemimélica (enfermedad de Trevor) de tobillo / Analysis of dysplasia epiphysealis hemimelica (Trevor's disease) of the ankle

La displasia epifisaria hemimélica o enfermedad de Trevor es una deformidad osteocartilaginosa en la región epifisaria. Es poco frecuente y predomina en el sexo masculino. Se desarrolla en la infancia cuando los cartílagos de crecimiento están abiertos, y afecta principalmente el tobillo y la rodilla. Su origen es desconocido. Se presentan tres casos con distinto grado de compromiso y las alternativas terapéuticas. Un solo caso quirúrgico por equino irreductible. Se detallan la técnica quirúrgica, el manejo posoperatorio y el resultado de anatomía patológica. Se recomienda operar sólo a pacientes con alguna limitación funcional o severa deformidades por el alto índice de recidiva. Nivel de Evidencia: IV

Dysplasia epiphysealis hemimelica or Trevor's disease is an osteocartilaginous deformity in the epiphyseal region. It is an uncommon entity, and predominates in the male sex. It develops during childhood, when growth cartilages are open, and mainly affects the ankle and knee. Its origin is unknown. Three cases with different degree of involvement and therapeutic alternatives are presented. Only one surgical case due to irreductible equinovarus. Surgical technique, postoperative management and result of pathological anatomy are explained. We recommend surgery only for patients with some functional limitation or severe deformities due to its high rate of relapse. Level of Evidence: IV

Dolor crónico del tobillo: banda fibrosa (Web Impingement) / Chronic ankle pain. Web impingement

Objetivo: Presentamos una serie de pacientes con dolor crónico de tobillo y estudios por imágenes negativos, en los que hallamos solamente una banda fibrosa intraarticular como causa probable del dolor en la artroscopia diagnóstica. Métodos: Entre el año 2010 y 2016 se realizaron 212 artroscopias anteriores de tobillo. En 19 pacientes (8,96%) se encontró una banda fibrosa intrarticular. En 13 pacientes se encontraban asociadas con otras patologías y solo en 6 pacientes (2,83%) fueron aisladas, sin lesión asociada. El promedio de edad fue de 40,42 años. El seguimiento promedio de 20,42 meses. La mayoría de los pacientes fueron atendidos en centros de aseguradoras de riesgo de trabajo. Resultados: Se utilizó el score AOFAS con un promedio para el preoperatorio de 55,63 y para el postoperatorio de 92.26. No hubo complicaciones en esta serie. Conclusiones: La banda fibrosa es una patología infrecuente, con sintomatología clínica similar a la de otras patologías que producen un síndrome friccional anterior de partes blandas del tobillo. La mayoría tenía antecedentes traumáticos. Los estudios por imágenes utilizados fueron la radiografía y la Resonancia. Ninguno de ellos fue de utilidad en el diagnóstico. La banda fibrosa es una de las diferentes formas de impingement en la cara anterior del tobillo y puede ser una causa de fricción y dolor. Dado que los estudios por imágenes no fueron concluyentes, la artroscopía fue nuestro método de elección para el diagnóstico y tratamiento en los pacientes con dolor crónico de tobillo con imágenes negativas. Tipo de trabajo: Serie de casos. Nivel de evidencia: IV.

Purpose: We present a series of patients with chronic anterior ankle pain and negative imaging studies, in which we found an isolated fibrous intrarticular band as a probable cause of pain in diagnostic arthroscopy. Methods: Between 2010 and 2016 we performed 212 anterior ankle arthroscopies. In 19 patients (8,96%) a fibrous web like band was found. In 13 cases they were associated with other diseases and only 6 of them (2.83 %) were isolated. Average age was 42 years. Follow up was between 4 months and 3 years (average 20.42 months). Most of them were workers compensation patients. Results: We used the AOFAS scores with an average value of 55,63 preoperative and 92.26 points postoperative. No complications were found in this series. Conclusions: Intra articular fibrous band is an infrequent pathology, with clinical presentation similar to other soft tissues anterior impingement. Most of them had previous trauma. Imaging studies performed were radiographs and MRI, but they have not proven to be useful due to their low or none sensitivity to this condition. Intra articular fibrous bands is one of the causes of anterior impingement of the ankle, and may be a cause of friction and pain. Most of them had history of previous trauma. Imaging studies were not conclusive, and arthroscopy was our election method for diagnosis and treatment in patients with chronic ankle pain and negative imaging studies. Type of study: Case series. Level Of Evidence: IV.

Artrodesis de tobillo asistida por artroscopia. Nuestra experiencia / Arthroscopic assisted ankle arthrodesis. Our experience

INTRODUCCIÓN: La artrodesis de tobillo es el tratamiento de elección para la enfermedad degenerativa del tobillo, dolorosa y que no mejora con tratamientos conservadores. La artrodesis de tobillo asistida por vía artroscópica, es una opción a las técnicas abiertas que si bien presentan resultados similares en cuanto a los índices de consolidación, la artrodesis artroscópica de tobillo presenta ventajas comprobadas y documentadas relacionadas con una menor morbilidad, menor estadía hospitalaria, más rápida rehabilitación y con tiempos de consolidación más rápidos. El objetivo del presente trabajo es presentar nuestra experiencia con una serie de pacientes que presentaban enfermedad degenerativa de la articulación del tobillo de diferentes causas, y que fueron tratados mediante artrodesis tibio-astragalina por asistencia artroscópica. Presentaremos las indicaciones, el detalle de la técnica quirúrgica y los resultados obtenidos. MATERIAL Y MÉTODOS: Presentamos 11 pacientes a los cuales se les realizó una artrodesis artroscópica de tobillo. Un caso fue bilateral. Nueve fueron de sexo masculino y 2 de sexo femenino. La edad promedio al momento de la cirugía fue de 56.9 años. Los casos seleccionados fueron pacientes no fumadores y con patologías degenerativas del tobillo que presentaban dolor que no había mejorado con tratamientos conservadores y relacionadas en un caso con artritis reumatoidea (caso bilateral), cuatro casos de osteoartritis primarias y seis casos de osteoartritis de origen pós-traumático...

INTRODUCTION: Ankle arthrodesis is the treatment of choice for degenerative ankle disease, with pain and does not responded with conservative treatments. Ankle arthrodesis assisted through arthroscopy, is an option to open techniques that although they present similar results in terms of consolidation rates, arthrodesis arthroscopic ankle presents proven and documented advantages related to lower morbidity, shorter hospital stay, faster rehabilitation and faster consolidation times. The objective of this paper is to present our experience with a series of patients who presented degenerative disease of the ankle joint of different causes and who were treated by arthroscopic ankle arthrodesis. We will present the indications, the detail of the surgical technique and the results obtained. MATERIAL AND METHODS: We present eleven patients who underwent arthroscopic arthrodesis of the ankle. One case was bilateral. Nine were male and two female. The average age at the time of surgery was 56.9 years. The selected cases were non-smoking patients with degenerative ankle pathologies that presented pain that had not improved with conservative treatments and related in one case with rheumatoid arthritis (bilateral case), four cases of primary osteoarthritis and six cases of osteoarthritis of posttraumatic origin...

Tratamiento endoscópico del pinzamiento posterior del tobillo / Endoscopic treatment for the posterior impingement of the ankle

Resumen: Antecedentes: El dolor crónico de la región posterior del tobillo es generalmente debido a un conflicto entre estructuras capsuloligamentares y óseas. La presencia del os trigonum o una apófisis posterior del astrágalo pronunciada puede ocasionar por sí sola este pinzamiento. El propósito de este estudio es mostrar los resultados de la endoscopía del retropié por un pinzamiento posterior del tobillo. Material y métodos: Veinticuatro pacientes con diagnóstico de síndrome de pinzamiento posterior del tobillo fueron operados mediante técnica artroscópica posterior en el período comprendido entre 2008 y 2012. Se analizaron como variables el tipo de deporte, nivel deportivo según clasificación CLAS y retorno a la actividad deportiva. Fueron valorados según la EVA del dolor y las escalas AOFAS, SFMCP (Société Française de Médecine et Chirurgie du Pied) para el tobillo, y se evaluó la satisfacción personal con escala de Likert. Resultados: El seguimiento promedio fue de 27.13 ± 5.26 meses, con edad promedio de 31.8 ± 5.26 años; 19 fueron masculinos (79.2%) y cinco femeninos (20.8%). La valoración del dolor con EVA 5.75 pasó a 0.95; la valoración funcional mediante una escala AOFAS preoperatoria 76.22 ± 5.29 puntos aumentó a 97.21 ± 1.96 puntos y la escala SFMCP preoperatoria 77.16 ± 3.53 puntos subió a 98.54 ± 1.38 puntos. Se registró una inmovilización en promedio de 19.75 ± 2.48 días y un retorno a la actividad deportiva en promedio de 4.6 meses (± 1.27), con 66.7% (16 individuos) muy satisfechos, 29.2% (siete) satisfechos y 4.2% (uno) regularmente satisfecho. Se encontró un caso (4.2%) de distrofia simpático refleja como complicación y otro con eritema en el portal endoscópico. Conclusión: El conflicto posterior del tobillo es una patología cuyo diagnóstico es clínico y está muy relacionado con la presencia de unos trigonum o un proceso de Stieda grande, lo cual repercute con la actividad deportiva. El tratamiento artroscópico es una opción ideal para dicha patología por la adecuada evolución clínica y estética, así como un pronto retorno a una actividad deportiva.

Abstract: Background: Chronic pain on the posterior portion of the ankle is often due to posterior impingement between bony or soft tissue structures. The presence of an os trigonum or a prominent posterior apophysis of the talus can produce this impingement. The purpose of this study was to assess the outcome of hindfoot endoscopy in patients with a diagnosis of posterior ankle impingement. Material and methods: We studied 24 individuals who underwent a posterior ankle endoscopic procedure during the period between 2008 and 2012, with the diagnosis of posterior ankle impingement. We analyzed variables such as: sport, level of sports activity according to the CLAS classification, return to sport. All patients were classified in accordance to the AOFAS and SFMCP (Société Française de Médecine et Chirurgie du Pied) scores for ankle pathology. We measured patient satisfaction to the procedure with the Linkert scale. Results: The average follow-up was 27.13 ± 5.26 months. The average age of our patients was 31.8 ± 5.26 years. We had 19 male (79.2%) and five female (20.8%) patients. The average preoperative Visual Analog Scale of pain (VAS) 5.75 and postoperative was 0.95. The average preoperative AOFAS scale of 76.22 ± 5.29 rose to 97.21 ± 1.96. The average preoperative SFCMP scale of 77.16 ± 3.53 became 98.54 ± 1.38. Our patients had their ankles immobilized for an average of 19.75 ± 2.48 days. They returned to their sports activities at an average of 4.6 (± 1.27) months. Our patients rated their personal satisfaction as very satisfied in 16 cases (66.7%), satisfied in seven cases (29.2%), regular satisfaction in one case (4.2%). One patient developed a complex regional pain syndrome that was resolved with physical therapy and another had a wound erythema. Conclusion: The posterior ankle impingement is a pathology which diagnosis is mainly clinical, it is greatly associated with an os trigonum or a large Stieda process. It has a strong repercussion in the sports activities of the patients. The arthroscopic treatment is an ideal option for this pathology as it presents a good postoperative recovery with a swift return to patients preoperative sports activities.

Dysplasia epiphysealis hemimelica with bony and soft-tissue abnormalities: a case report and review of the literature

We report a case of a 3-year-old boy with dysplasia epiphysealis hemimelica [DEH] who presented with a hard painless swelling on the medial side of his left ankle joint. Plain X-rays, CT and MRI showed a bony tumor and associated soft-tissue abnormalities. At age one year, he had been diagnosed with an osteochondroma and underwent incomplete surgical excision at a local hospital. Due to joint impingement and restricted movement, we chose to completely excise the tumor. Pathologically, the specimen showed evidence of an osteochondroma. From its clinical, imaging, and pathological features and reports in the medical literature, a diagnosis of DEH was established. DEH is a rare variant of osteochondroma, resulting in many patients being incorrectly diagnosed or diagnosed with osteochondroma alone. It is important to low-grade malignant tumor or osteochondroma-like parosteal osteosarcoma from DEH of the talus, especially when accompanied by soft tissue abnormalities. Surgical treatment is mandatory in patients with symptoms such as pain, joint impingement and deformation. Incomplete excision of an articular lesion may lead to recurrence and additional surgery, making it less than complete excision

Impacto do internamento em unidade de cuidados intensivos na amplitude de movimento de pacientes graves: estudo piloto / Impact of hospitalization in an intensive care unit on range of motion of critically ill patients: a pilot study

Objetivo: Aferir a amplitude de movimento articular de pacientes graves durante o internamento numa unidade de cuidados intensivos. Métodos: Estudo prospectivo e longitudinal, realizado em uma unidade de cuidados intensivos de um hospital público da cidade de Salvador (BA), no período de setembro a novembro de 2010. A principal variável avaliada foi a amplitude de movimento articular passiva, por meio da goniometria dos cotovelos, joelhos e tornozelos, no momento da admissão e na alta. Todos os pacientes internados no período foram incluídos, sendo excluídos aqueles com tempo de internamento <72 horas e com reduções da amplitude de movimento articular na admissão. Resultados: A amostra foi composta por 22 indivíduos, com idade média de 53,5±17,6 anos, tempo de internamento na unidade de cuidados intensivos de 13,0±6,0 e de ventilação mecânica de 12,0±6,3 dias. O APACHE II foi 28,5±7,3, sendo que a maioria dos pacientes era independente funcional previamente ao internamento, com índice de Barthel prévio de 88,8±19. As perdas de amplitude de movimento articular foram 11,1±2,1°; 11,0±2,2°; 8,4±1,7°; 9,2±1,6°; 5,8±0,9° e 5,1±1,0°; para cotovelos, joelhos e tornozelos, respectivamente do lado direito e esquerdo (p<0,001). Conclusão: Houve uma tendência de decréscimo nas amplitudes de movimento de grandes articulações, como tornozelo, joelho e cotovelo, durante o internamento em unidade de cuidados intensivos. .

Objective: To evaluate the joint range of motion of critically ill patients during hospitalization in the intensive care unit. Methods: This work was a prospective longitudinal study conducted in a critical care unit of a public hospital in the city of Salvador (BA) from September to November 2010. The main variable evaluated was the passive joint range of motion. A goniometer was used to measure the elbows, knees and ankles at the time of admission and at discharge. All patients admitted in the period were included other than patients with length of stay <72 hours and patients with reduced joint range of motion on admission. Results: The sample consisted of 22 subjects with a mean age of 53.5±17.6 years, duration of stay in the intensive care unit of 13.0±6.0 days and time on mechanical ventilation of 12.0±6.3 days. The APACHE II score was 28.5±7.3, and the majority of patients had functional independence at admission with a prior Barthel index of 88.8±19. The losses of joint range of motion were 11.1±2.1°, 11.0±2.2°, 8.4±1.7°, 9.2±1.6°, 5.8±0.9° and 5.1±1.0°, for the right and left elbows, knees and ankles, respectively (p<0.001). Conclusion: There was a tendency towards decreased range of motion of large joints such as the ankle, knee and elbow during hospitalization in the intensive care unit. .

"Os trigonum" y "proceso de stieda" en el síndrome del impacto posterior del tobillo / Os trigonum and stieda process in posterior ankle impingement syndrome

El Os trigonum (OT) y el Proceso de Stieda (PS), corresponden a la osificación separada o extensiva del tubérculo lateral de la cara posterior del talus (TA), respectivamente. Son indicados como factores causales del Síndrome del Impacto Posterior del Tobillo (SIPT), disturbio, agudo o crónico, con dolor en la región posterior del tobillo a los movimientos del pie. El objetivo fue analizar la importancia morfológica de la presencia del OT y/o PS y su posible relación con el SIPT. Fueron utilizados 80 TA secos. La morfometría del TA y del Tubérculo Lateral del TA (TL) fueron calculadas y expresas como: LTA = largo total del TA; ATA = ancho total del TA; LTL/LPS = largo total de TL/PS; ETL = espesor total de TL/PS. Los análisis mostraron valores de LTA: 55,22 (+/-4,16) mm; ATA: 39,51 (+/-2,46) mm; LTL/LPS: 8,06 mm (+/-2,14) y ETL: 8,46 (+/-1,01) mm. Nuestros resultados ofrecen informaciones no encontradas en la literatura especializada y ayudan en el diagnóstico y tratamiento del SIPT.

Os Trigonum (OT) and Stieda Process (SP), separate or extensive ossification of the lateral tubercule of posterior face of Talus (TA), respectively, are indicative of causal factors of the Posterior Impingement Syndrome of The Ankle (PISA) - disturbance, sharp or chronic pain, with pain in the posterior region of the ankle caused by foot movements. The objective of this study was to analyze the morphological importance of the presence of OT and or SP and the possible relationship with PISA for which we used 80 dry TA. The morphometry of TA and Lateral Tubercule of TA (LT) were calculated and expressed as mean: LTA= total length of TA; WTA= total width of TA; LLT/LPS= total length of LT/SP; TLT= total thickness of LT/SP. The measures were LTA: 55.22 (+/-4.16) mm; WTA: 39.51 (+/-2.46) mm; LLT/LPS: 8.06 (+/-2.14) mm; TLT: 8.46 (+/-1.01) mm. Our results provide useful information not found in the specialized literature and are of assistance in the diagnosis and treatment of PISA.

Intra-articular Lesions in Chronic Lateral Ankle Instability: Comparison of Arthroscopy with Magnetic Resonance Imaging Findings

BACKGROUND: Chronic lateral ankle instability often accompanies intra-articular lesions, and arthroscopy is often useful in diagnosis and treatment of intra-articular lesions. METHODS: Preoperative magnetic resonance imaging (MRI) examinations and arthroscopic findings were reviewed retrospectively and compared in 65 patients who underwent surgery for chronic lateral ankle instability from January 2006 to January 2010. MR images obtained were assessed by two radiologists, and the inter- and intra-observer reliability was calculated. American Orthopedic Foot and Ankle Society (AOFAS) and visual analogue scale (VAS) scores were evaluated. RESULTS: Abnormalities of the anterior talofibular ligament (ATFL) were found in all 65 (100%) cases. In arthroscopy examinations, 33 (51%) cases had talar cartilage lesions, and 3 (5%) cases had 'tram-track' cartilage lesion. Additionally, 39 (60%) cases of synovitis, 9 (14%) cases of anterior impingement syndrome caused by osteophyte, 14 (22%) cases of impingement syndrome caused by fibrotic band and tissue were found. Sensitivity of MRI examination for each abnormality was: ATFL, 60%; osteochondral lesion of talus (OLT), 46%; syndesmosis injury, 21%; synovitis, 21%; anterior impingement syndrome caused by osteophyte, 22%. Paired intra-observer reliability was measured by a kappa statistic of 0.787 (95% confidence interval [CI], 0.641 to 0.864) for ATFL injury, 0.818 (95% CI, 0.743 to 0.908) for OLT, 0.713 (95% CI, 0.605 to 0.821) for synovitis, and 0.739 (95% CI, 0.642 to 0.817) for impingement. Paired inter-observer reliability was measured by a kappa statistic of 0.381 (95% CI, 0.241 to 0.463) for ATFL injury, 0.613 (95% CI, 0.541 to 0.721) for OLT, 0.324 (95% CI, 0.217 to 0.441) for synovitis, and 0.394 (95% CI, 0.249 to 0.471) for impingement. Mean AOFAS score increased from 64.5 to 87.92 (p < 0.001) when there was no intra-articular lesion, from 61.07 to 89.04 (p < 0.001) in patients who had one intra-articular lesion, and from 61.12 to 87.6 (p < 0.001) in patients who had more than two intra-articular lesions. CONCLUSIONS: Although intra-articular lesion in patients with chronic lateral ankle instability is usually diagnosed with MRI, its sensitivity and inter-observer reliability are low. Therefore, arthroscopic examination is strongly recommended because it improved patients' residual symptoms and significantly increased patient satisfaction.

Cambios metafisiarios de los miembros inferiores originados por osteocondromatosis múltiple hereditaria / Mataphyseal changes of the lower limb caused by multiple hereditary osteochondromatosis

Se realizó un estudio de población, de tipo prospectivo, descriptivo y observacional en pacientes que acudieron a la Unidad de Tumores Óseos y Partes Blandas (UTOPB) del Hospital Universitario “Dr. Manuel Núñez Tovar” entre enero de 2008 y julio de 2010, con el diagnóstico de Osteocondromatosis Múltiple Hereditaria (OMH) que afectaba las articulaciones de las extremidades inferiores; se estudiaron 26 pacientes, equivalentes a 52 extremidades inferiores, con predominio del sexo masculino 1,2:1, las edades de los pacientes comprendían entre los 6 y 15 años, con mayor registro de casos a los 12 años (19,2%). Se cuantificó el número de osteocondromas periarticulares en las articulaciones de cadera, rodilla y tobillo, observando un predominio en la rodilla (48,7%) a expensas de la metáfisis distal del fémur. Se clasificó la afectación funcional de las articulaciones en tres grados (leve, moderada y severa), tomando como referencia el movimiento de flexoextensión, siendo el tobillo la articulación que presento el mayor grado de limitación y la cadera la menos afectada a la presencia de osteocondromas

We conducted a prospective, descriptive and observational population-based study, in patients attending the Unit of Bone and Soft Tissue Tumors (UTOPB) at the Hospital "Dr. Manuel Núñez Tovar" between January 2008 and July 2010, with the diagnosis of Multiple Hereditary Osteochondromatosis (MHO), which affected the joints of the lower extremities, were studied 26 patients, equivalent to 52 lower extremities; with a male predominance 1,2:1, the age of the patients ranged between 6 and 15 years, with highest number of cases at 12 years (19.2%). We quantified the number of periarticular osteochondromas at the hip, knee and ankle, having predominance in the knee (48.7%) at the expense of the distal femur metaphysis. We scored the functional range of the joints in three grades (mild, moderate and severe), with reference to the movement of flexion-extension, the ankle joint had the highest degree of limitation and, the hip was less affected to the presence of osteochondromas

Effect of Hinged Ankle-Foot Orthoses on Standing Balance Control in Children with Bilateral Spastic Cerebral Palsy

PURPOSE: To identify the characteristics of static standing balance and its postural control mechanisms during quiet side-by-side standing and the changes in these measures whilst wearing hinged ankle-foot orthoses (AFOs) in children with bilateral spastic cerebral palsy (CP). MATERIALS AND METHODS: Twenty-one children with bilateral spastic CP (6.10 +/- 1.09 year-old) and 22 typically developing (TD) children (5.64 +/- 0.49 year-old) were recruited. Pressure data were recorded while subjects with or without AFOs stood on dual force platforms and net body center of pressure (CoP) coordinates were calculated from this data. Net body CoP was traced for measuring mediolateral (ML) and anteroposterior (AP) displacement and path length per second. Correlation coefficients between parameters representing ankle, hip, and transverse body rotation strategies were also analyzed. RESULTS: ML and AP displacement and path length per second of the CoP trajectory were higher in children with CP compared to TD children (p < 0.05). There were no significant improvements in these parameters whilst wearing hinged AFOs. Compared to TD children, children with CP used less ankle strategy though more hip and transverse rotation strategies for postural control during quiet standing. Whilst wearing hinged AFOs, the contribution of ankle strategy was significantly increased for ML balance control in children with CP (p < 0.05). CONCLUSION: Hinged AFOs for children with CP may be helpful in improving the postural control mechanisms but not the postural stability in quiet side-by-side standing.

Generalized cutaneous granulocytic sarcoma with joint involvement

Granulocytic sarcoma [GS] is a rare medullary solid tumour composed on immature myeloid cells. These tumours often display a greenish colour due to the enzymatic action of myeloperoxidase in the tumour cells. Hence, the term 'chloroma' was given to this lesion in 1853. GS commonly involves bone, periosteum, soft tissue, lymph node, and skin. Rare occurrences in muscle, meninges, breast, mediastinum, joints and ovary have been reported. Below-knee joint involvement in GS is unusual. We report a case of generalized cutaneous granulocytic sarcoma with ankle joint involvement who subsequently developed AML-M4

Ankle MRI for Anterolateral Soft Tissue Impingement: Increased Accuracy with the Use of Contrast-Enhanced Fat-Suppressed 3D-FSPGR MRI

OBJECTIVE: To validate the use of contrast-enhanced (CE) fat-suppressed three-dimensional (3D) fast gradient-recalled acquisition in the steady state with radiofrequency spoiling (FSPGR) magnetic resonance imaging (MRI) for the diagnosis of anterolateral soft tissue impingement of the ankle, as compared to the use of routine ankle MRI. MATERIALS AND METHODS: Contrast-enhanced fat-suppressed 3D-FSPGR MRI and routine MRI scans were retrospectively reviewed for 45 patients with arthroscopically proven anterolateral impingement. In addition, scans were reviewed in 45 control subjects with diagnoses other than impingement. Two radiologists independently reviewed the two sets of images in random order. Using areas (Az) under the receiver operating characteristic curve (ROC), we compared the depiction of anterolateral soft tissue impingement in the two sets of images. RESULTS: The overall accuracy for lesion characterization was significantly higher (p < 0.05) using the CE fat-suppressed 3D-FSPGR MR images (Az = 0.892 and 0.881 for reader 1 and 2, respectively) than using the routine MR images (Az = 0.763 and 0.745). The use of CE fat-suppressed 3D-FSPGR MRI enhanced impingement depiction in most cases. However, in cases with a thickened non-enhancing scar or joint effusion, the routine images better depicted a soft tissue mass that intruded into anterolateral gutter than the CE images. CONCLUSION: The use of CE fat-suppressed 3D-FSPGR MRI of the ankle allows a more accurate assessment of anterolateral soft tissue impingement of the ankle, as compared to the use of routine MRI.

Sindrome de friccion anterior de tobillo. Experiencia con el tratamiento artroscopico / Anterior ankle impingement. Our experience with arthroscopic surgery

Se presentan 39 pacientes tratados en forma artroscopica por síndrome de friccion anterior de tobillo entre abril de 1995 a diciembre del año 2001, con un seguimiento promedio de 6,5 años. La edad media fue de 27 años con un rango de 18 a 51 años. El diagnostico fue realizado por medio de la clinica del paciente y las radiografias simples. Hemos clasificado esta patologia en cuatro grados de acuerdo a los cambios osteoartriticos y se ha desarrollado la tecnica artroscopica con sus beneficios y complicaciones. Los resultados obtenidos fueron analizados desde el aspecto subjetivo, con la satisfacción del paciente y el objetivo que fue el estudio radiografico donde se evaluaron los cambios padecidos a nivel del espacio articular y de los osteofitos ubicados en el extremo distal de tibia y en el cuello del astragalo. El seguimiento a largo plazo demostro que la artroscopia es un metodo valioso para el diagnostico y tratamiento del sindrome de friccion anterior de tobillo

Cambios histopatologicos en las roturas espontaneas del tendon de Aquiles / Histological changes in spontaneous ruptures of the the Achilles tendon

Introducción: La rotura del tendón de Aquiles es una patología que se observa con relativa frecuencia en nuestro medio. Distintos factores se han asociado con la rotura espontánea de ese tendón. El objetivo del presente trabajo es determinar la existencia de lesiones degenerativas tendinosas previas predisponentes a la rotura del Aquiles. Materiales y métodos: Se analizaron 31 muestras de roturas tendinosas aquilianas, de 29 hombres y 2 mujeres, con edad promedio de 42,5 años. Las biopsias fueron tomadas dentro de los 6 días de producida la lesión. Se utilizaron criterios de inclusión y de exclusión. Se realizaron las técnicas de tinción de hematoxilina-eosina, azul alciano a pH 2,5, tricrómico de Mallory, PAS y técnica de Perls, para su estudio microscópico. Se analizaron los datos con métodos estadísticos de Mann-Whitney y de Spearman.Resultados: Todos los pacientes presentaron alteración de la estructura fibrilar, disminución de la tinción del colágeno y desorganización fibrilar. Conclusiones: Los cambios degenerativos encontrados fueron independientes de la edad del paciente y del tiempo de evolución de la rotura. La degeneración mucoide se encontró con mayor frecuencia (67,7 por ciento). Los cambios reparativos variaron de acuerdo con el tiempo de rotura del tendón.

Pachydermoperiostosis: report of two cases

We report two patients with pachydermoperiostosis. Both patients presented with pain and swelling of the large joints, characteristic facial features, clubbing and enlargement of distal parts of the extremities