Braquimetatarsia: propuesta de tratamiento en base a técnicas de alargamiento: a propósito de dos casos / Brachymetatarsia: treatment proposal based on lengthening techniques: about two cases / Braquimetatarsia: proposta de tratamento baseada em técnicas de alongamento: sobre dois casos

Braquimetatarsia es el acortamiento anormal de uno o más metatarsianos. Tiene una incidencia de 0.02%-0.05% predominando en mujeres de 25 a 1. En un 72% puede ser bilateral. La etiología no es clara pero se plantea el cierre prematuro de la fisis dando un retardo en el crecimiento. La mayoría de las veces presenta síntomas causados por alteración en la mecánica de la parábola metatarsal como dolor e hiperqueratosis. Puede existir metatarsalgia y agregar en la evolución desviaciones digitales adicionales. El principal motivo de consulta es estético. El objetivo del reporte es mostrar dos técnicas quirúrgicas y los resultados clínicos correspondientes usando el score AOFAS, además de los resultados imágenológicos con hasta 5 años de seguimiento. Se describen dos pacientes y se analizan dos técnicas quirúrgicas diferentes para alargar los metatarsianos. Se trata de alargamientos agudos con interposición de injerto intercalar, en un caso mediante el procedimiento de Sandro Gianini con injerto de cresta ilíaca y en el otro con injerto de metatarsiano adyacente con modificación de la longitud del segundo y tercer metatarsiano restituyendo en ambos casos la parábola metatarsal. Obtuvimos buenos resultados al igual que series numerosas pudiendo recomendarse en casos similares.

Brachymetarsal is the abnormal shortening of one or more metatarsals. It has an incidence of 0.02%-0.05%, predominantly in women from 25 to 1. In 72% it can be bilateral. The etiology is not clear, but premature closure of the physis is suggested, giving growth retardation. Most of the time it presents symptoms caused by an alteration in the mechanics of the metatarsal parabola, such as pain and hyperkeratosis. There may be metatarsalgia and add additional digital deviations in the evolution. The main reason for consultation is aesthetic. The objective of the work is to show the surgical technique and the clinical results using the AOFAS score, in addition to the imaging results with up to 5 years of follow-up. Two patients are described and two different surgical techniques to lengthen the metatarsals are analyzed. These are acute lengthenings with intercalary graft interposition, in one case using the S.Gianini procedure with an iliac crest graft and in the other with an adjacent metatarsal graft with modification of the length of the second and third metatarsals, restoring in both cases the metatarsal parabola. We obtained good results. results as well as numerous series and can be recommended in similar cases.

Braquimetatarsal é o encurtamento anormal de um ou mais metatarsos. Tem incidência de 0,02%-0,05%, predominantemente em mulheres de 25 a 1 ano. Em 72% pode ser bilateral. A etiologia não é clara, mas sugere-se o fechamento prematuro da fise, causando retardo de crescimento. Na maioria das vezes apresenta sintomas decorrentes de uma alteração na mecânica da parábola metatarsal, como dor e hiperqueratose. Pode haver metatarsalgia e adicionar desvios digitais adicionais na evolução. O principal motivo da consulta é a estética. O objetivo do trabalho é mostrar a técnica cirúrgica e os resultados clínicos utilizando o escore AOFAS, além dos resultados de imagem com até 5 anos de seguimento. Materiais e métodos: São incluídos dois pacientes e analisadas duas técnicas cirúrgicas diferentes para alongar os metatarsos. São alongamentos agudos com interposição de enxerto intercalar, em um caso utilizando a técnica de S. Gianini com enxerto de crista ilíaca e no outro com enxerto de metatarso adjacente com modificação do comprimento do segundo e terceiro metatarsos, restaurando em ambos os casos o metatarso parábola. Obtivemos bons resultados, bem como inúmeras séries, podendo ser recomendados em casos semelhantes.

Osteotomías de alargamiento para realineación en maluniones postraumáticas de peroné / Lengthening osteotomy for realignment in posttraumatic fibular malunions

El acortamiento y la rotación del peroné son las deformidades más frecuentemente encontradas cuando se presentan maluniones postraumáticas del tobillo resultando en ensanchamiento de la mortaja e inestabilidad astragalina, con consecuentes cambios artrósicos. Los pacientes acuden por presentar dolor y limitación en sus actividades diarias y deportivas. En el presente estudio retrospectivo se hace una evaluación de los resultados clínicos y radiológicos de 9 pacientes que se sometieron a tratamiento quirúrgico posterior a maluniones de fracturas de peroné, en los cuales se realizaron osteotomías de alargamiento y desrotación para reconstrucción del tobillo, en la Unidad de Cirugía de Pie y Tobillo del Hospital Universitario de Caracas, entre junio de 2014 y agosto del 2019. Se realizaron mediciones radiológicas pre y postoperatorias de los ángulos de inclinación astragalina, talocrural y bimaleolar, y se reportaron los cambios degenerativos articulares. Para la evaluación clínica y funcional se aplicó la Escala Análoga Visual (VAS) para el dolor, y la Escala AOFAS de retropié, evidenciándose mejoría en cuanto a dolor, función y alineación. El objetivo del tratamiento fue restituir la longitud inicial del peroné, mediante osteototomías oblicuas en el sitio de la fractura anterior, o transversas suprasindesmales, con lo cual también se corrige la alineación del astrágalo, y de esta manera prevenir o disminuir los síntomas y signos inherentes a degeneración articular progresiva(AU)

The shortening and rotation of the fibula are the most frequent deformities found when post-traumatic ankle malunions occur, resulting in widening of the mortise and talus instability, with consequent arthritic changes. Patients have pain and limitation in their daily activities and sports. In the present retrospective study, an evaluation of the clinical and radiological results of 9 patients who underwent surgical treatment after fibular fracture malunions was performed, in which osteotomies of lengthening and de-rotation were performed for reconstruction of the ankle, in the Unit of Foot and Ankle Surgery at the University Hospital of Caracas, between June 2014 and August 2019. Pre and postoperative radiological measurements of the astragaline, talocrural and bimaleolar inclination angles were performed, and degenerative joint changes were reported. For the clinical and functional evaluation, the Visual Analog Scale (VAS) was applied for pain, and the AOFAS Hindfoot Scale, evidencing improvement in pain, function, and alignment. The objective of the treatment was to restore the initial length of the fibula by means of oblique osteotomies at the site of the previous fracture or suprasindesmal transverse osteotomy, which also corrects the alignment of the talus and thus prevents or decreases the symptoms and signs inherent to joint progressive degeneration(AU)

Versatilidad del clavo endomedular retrógrado largo de tibia para artrodesis tibio-talo-calcánea en pacientes con lesiones asociadas en el mismo segmento / Versatility of the tibia long retrograde intramedullary nail for tibiotalocalcaneal arthrodesis in patients with associated lesions in the same segment

Introducción: La afección articular que lleva a la necesidad de una artrodesis tibio-calcánea puede estar acompañada de una segunda lesión en el mismo segmento óseo, y los clavos de diseño para artrodesis no tienen la longitud adecuada para cubrir ambas lesiones. No hallamos opciones terapéuticas para este tipo de lesiones en la bibliografía. Objetivo: Presentar una serie de casos en los que se utilizó un único clavo de tibia (de colocación anterógrada) de forma retrógrada, con el doble objetivo de efectuar una artrodesis tibio-talo-calcánea, sumada al tratamiento de una lesión asociada en un mismo tiempo quirúrgico. Materiales y métodos: Se evaluó, en forma retrospectiva, desde septiembre de 2009 hasta junio de 2019, a un grupo de 12 pacientes que requirió una artrodesis tibio-talo-calcánea sumada a la necesidad de resolver simultáneamente un defecto secundario local. La edad promedio fue de 43.7 años, y el seguimiento global fue de 43.9 meses. Resultados: Todos los pacientes lograron una artrodesis tibio-calcánea constatada en radiografías de frente y de perfil, y el 83,3% recuperó el stock óseo de manera completa. Conclusión: Ante la ausencia en el mercado de osteosíntesis para resolver las patologías asociadas en un mismo paciente, proponemos el uso del clavo endomedular largo de tibia colocado de manera retrógrada como una opción de tratamiento, porque se ha demostrado que es eficaz para lograr la artrodesis tibio-calcánea. Además, se lo pudo utilizar como guía en el alargamiento y el transporte óseo, y como estabilización para tratar lesiones simultáneas. Nivel de Evidencia: IV

background: The joint condition that leads to the need for a tibiocalcaneal arthrodesis may be accompanied by a second injury in the same bone segment, and design nails for arthrodesis are not of adequate length to cover both injuries. We have not found therapeutic options for this type of injury in the literature. Objective: To present a series of cases where a single tibia nail (antegrade placement) was used retrogradely, with the dual objective of performing a tibiotalocalcaneal arthrodesis added to the treatment of an associated injury in the same surgical stage. materials and methods: We retrospectively evaluated a group of 12 patients who required a tibiotalocalcaneal arthrodesis as well as to simultaneously resolve a local secondary defect from September 2009 to June 2019. The average age was 43.7 (27-61) years, and the global follow-up was 43. 9 months. Results: All patients achieved a tibiocalcaneal arthrodesis confirmed in antero-posterior and lateral radiographs, and 83.3% of the patients recovered their bone stock completely. Conclusion: Faced with the lack of osteosynthesis in the market to resolve associated pathologies in the same patient, we propose the use of a long tibial intramedullary nail placed in a retrograde manner as a treatment option since it has proven to be efficient in achieving tibiocalcaneal arthrodesis. In addition, it could be used as a rail for bone lengthening and transport, and as stabilization to treat simultaneous injuries. Level of Evidence: IV

Alargamiento óseo con clavo intramedular magnético experiencia preliminar y lecciones aprendidas / Bone lengthening with magnetic intramedullary nail preliminary experience and learned lessons

OBJETIVOS: Mostrar resultados, complicaciones y lecciones aprendidas utilizando el clavo intramedular magnético (IML, Intramedullary Magnetic Lengthener) en un grupo de pacientes sometidos a alargamiento óseo. PACIENTES Y MÉTODOS: Entre enero 2017 y diciembre 2019, 9 pacientes (15 segmentos), edad entre 15 y 39 años, fueron sometidos a alargamiento óseo con IML: 5 pacientes tuvieron alargamiento femoral bilateral por talla baja, 1 paciente se sometió a alargamiento de Piernas bilateral por Tibia vara y acortamiento mesomélico y 3 recibieron alargamientos femorales unilaterales por discrepancia de longitud de extremidades. Todos fueron operados por el mismo cirujano, con técnica standard. Se indicó kinesiterapia al menos 5 veces por semana durante la fase de distracción. RESULTADOS: En todos se logró el objetivo de alargamiento planteado. No hubo complicaciones intra ni postoperatorias graves (TVP, TEP, Embolia grasa), ni fallas del sistema distractor. Un paciente desarrolló contracturas articulares de ambas rodillas por no adhesión a Kinesiterapia. Ninguno requirió aporte de injerto óseo, sin embargo en 2 pacientes de alargamiento de Fémur bilateral, se presentó deformidad en varo, que hizo necesario recambio a clavo convencional y un paciente desarrolló una parálisis transitoria del Nervio Peroneo común. CONCLUSIONES: El advenimiento de los IML significó un gran avance en el campo de la osteogénesis por distracción, sin embargo, aún se trata de un procedimiento complejo, que debe ser planificado cuidadosamente para minimizar los riesgos y complicaciones. Una selección meticulosa del paciente y la evaluación física y psicológica previa, son fundamentales para el éxito del procedimiento. Los casos bilaterales requieren de un seguimiento cercano, por el riesgo de falla del implante.

objective: We show our results, complications and lessons learned using the Intramedullary Magnetic Lengthener (IML) in a group of patients who were subjected to bone lengthening. PATIENTS AND METHODS: Between January 2017 and December 2019, 9 patients (15 segments), aged between 15 and 39 years, underwent bone lengthening with IML: 5 patients had bilateral femoral lengthening due to short stature, 1 patient had bilateral leg lengthening due to Tibia vara and mesomelic shortening and 3 had unilateral femoral lengthening for limb length discrepancy. All were operated by the same surgeon, with standard technique. Physical therapy was indicated at least 5 times per week during the distraction phase. RESULTS: In every case, the proposed lengthening amount was achieved. There were no serious intraoperative or postoperative complications (DVT, Pulmonary Embolism, Fat Embolism), nor failures of the distractor system. One patient developed knee joint contracture due to non-adherence to Physical therapy. None required bone grafting, however, in 2 patients with bilateral Femur, a varus deformity appeared, which required nail exchange with a conventional trauma nail. One case developed a transit common Peroneal Nerve palsy. CONCLUSIONS: IMLs represent a great advance in the bone lengthening realm, however, it is still a complex procedure, which must be carefully planned to minimize risks and complications. Meticulous patient selection and prior physical and psychological evaluation are essential to the success of the procedure. Bilateral cases need a closer follow up, because implant failure is a potential risk.

Composite bone and skin flap transplantation combined with bone lengthening for repairing lower limb burn with soft tissue and bone defect / 中国骨伤

OBJECTIVE@#To compare the effect of traditional fibula flap combined with allogeneic bone transplantation and composite bone flap transplantation combined with bone lengthening in staged repair of severe soft tissue and bone defect caused by lower limb burn.@*METHODS@#Total 68 patients with severe soft tissue and bone defect caused by lower limb burn from March 2015 to January 2018 were retrospectively analyzed, and they were divided into control group (34 cases) and study group (34 cases) according to the treatment plan. All patients had different degrees of soft tissue and bone tissue defects. In the study group, 34 patients were treated with composite bone flap transplantation combined with bone lengthening. There were 22 males and 12 females; the age ranged from 32 to 46(39.18±6.01) years; the time from injury to treatment was (16.69±5.11) h;28 cases were caused by explosion injury and 6 cases were caused by firearm burn; the length of bone defect was (12.10± 2.34) cm;and 16 cases were on the left side of affected limb 18 cases were on the right side. In the control group, there were 24 males and 10 females, aged 31 to 47 (38.93 ± 5.81) years;the time from injury to treatment was(17.10±5.63) h;the causes of injury were explosive injury in 30 cases and firearm burn in 4 cases; the length of bone defect was (11.96±2.51) cm;19 cases were on the left side and 15 cases on the right side. All patients were followed up for 6 months. The FMA scores before operation and 3 and 6 months after operation, treatment satisfaction, curative effect and complications of the two groups were recorded.@*RESULTS@#Limb function:there was no significant difference in FMA scores between the two groups before operation (@*CONCLUSION@#the combined use of composite bone flap transplantation and bone lengthening staged repair in the treatment of severe soft tissue and bone defect caused by lower limb burn can achieve good therapeutic effect, improve limb function, and have high treatment satisfaction and certain safety.

Alargamiento óseo con minitutor externo como tratamiento de braquimetatarsianos / Bone lengthening with external mini-fixator as treatment for brachymetatarsals

Introducción: La braquimetatarsia es un acortamiento de algún metatarsiano, debido principalmente a una detención prematura del crecimiento de la fisis. Es más frecuente en mujeres, y afecta, sobre todo, al cuarto y al primer metatarsiano. El objetivo de este estudio fue evaluar los resultados del tratamiento mediante alargamiento óseo progresivo con minitutor externo. Materiales y Métodos: Estudio descriptivo retrospectivo. Serie de casos. Se analizaron los resultados de los pacientes operados con esta técnica en nuestro Centro. Se analizaron 6 casos, dos con braquimetatarsia bilateral. Todas eran mujeres y tenían braquimetatarsia del 4.° metatarsiano. El promedio de edad era de 14 años. Se evaluaron los siguientes aspectos: alargamiento en milímetros y complicaciones, como retraso de la consolidación, infección, luxación metatarsofalángica, articulación metatarsofalángica en flexión y satisfacción del paciente. Resultados: Se logró un alargamiento promedio de 15 mm. Dos pacientes tuvieron una infección superficial de las agujas. Una paciente evolucionó con luxación de la articulación metatarsofalángica; otra, con flexión de la articulación metatarsofalángica. No hubo complicaciones neurovasculares. Conclusiones: El alargamiento óseo guiado con tutor externo es un tratamiento seguro y eficaz, además lograría un largo mayor en milímetros que el alargamiento en un tiempo, con un mejor control del alargamiento de partes blandas y estructuras neurovasculares. Todas las complicaciones se resolvieron de manera simple, no afectaron el resultado final del tratamiento. Las complicaciones concuerdan con las descritas en la literatura internacional. Nivel de Evidencia: IV

Introduction: Brachymetatarsia is a shortening of any metatarsal bone, mainly due to premature growth arrest of the growth plate. It is more frequent in women, the fourth and the first metatarsal being the most affected bones. The aim of this study was to evaluate the outcomes of progressive bone lengthening with external mini-fixator. Methods: This is a retrospective, descriptive, case series study in which we analyzed the outcomes of all patients operated on with this technique in our Center. Six cases were evaluated, two of them presented bilateral brachymetatarsia. All patients were women, and had brachymetatarsia of the 4th metatarsal. The average age was 14 years. The following aspects were evaluated: lengthening in millimeters and presence of complications, such as delayed consolidation, infection, metatarsophalangeal joint dislocation, metatarsophalangeal joint in flexion and patient satisfaction. Results: On average, an increase of 15 mm was achieved. Two cases presented superficial infection at the needle insertion site. One patient progressed to metatarsophalangeal joint dislocation, and another one to metatarsophalangeal joint flexion. No neurovascular complications were observed. Conclusions: Bone lengthening with external fixator is a safe and effective treatment. A greater length in millimeters can be achieved in comparison to one-stage lengthening, as well as an improved soft-tissue neurovascular stretching. All complications resolved smoothly and did not affect final treatment results. Complications are similar to those described in the international literature. Level of Evidence: IV

Tratamiento de defectos masivos de tibia: técnica de transporte óseo con fijador AO [Arbeitsgemeinschaft für Osteosynthesefragen] / Treatment of massive defects tibia: bone transport technique with fixator AO / Tratamento de defeitos maciços da tíbia: técnica de transporte ósseo com fixador AO

Introducción: La transportación ósea se refiere al traslado de un fragmento de hueso a través de un defecto óseo, por distracción osteogénica. Objetivo: Describir la técnica quirúrgica con fijador externo AO, y evaluar los resultados de este tratamiento en defectos óseos diafisarios de tibia mayores de 4 cm, secundarios a fracturas expuestas graves o pseudoartrosis infectadas. Material y método: Se realizó un estudio descriptivo de tipo serie de casos, retrospectivo, de los 14 pacientes tratados entre abril del 2011 y abril del 2015, con las lesiones o secuelas mencionadas en diferentes centro de Montevideo. Resultados: Todos los pacientes tenían secuelas a fracturas expuestas graves con defecto segmentario de tibia mayor a 4 cm. El seguimiento promedio fue de 13 meses (entre 6 y 27). La media de edad fue de 32 años (entre 15 y 53), la perdida ósea promedio 6,7 cm (entre 4 y 11), la velocidad de distracción de 0,58 mm/día, el período de distracción promedio fue de 92 días (entre 35 y 172), y el tiempo medio de fijadores externos desde el inicio fue de 194 días. Todos los pacientes requirieron algún procedimiento quirúrgico en el sitio de acoplamiento. Se logró la consolidación en 9 pacientes, hubo 2 pseudoartrosis, 2 pacientes abandonaron el tratamiento y uno decidió la amputación. No hubo ninguna recidiva de infección. Conclusión: La técnica de transportación ósea mediante el uso de fijadores externos AO, es una alternativa válida para el tratamiento de las perdidas óseas diafisarias de tibia con o sin infección.

Introduction: Bone transport is the slow transportation of the bone fragment along a bone defect, providing distraction osteogenesis. Objective: To describe the surgical technique of bone transport using the AO external fixator and to present the result of this procedure in tibial diafisis defects of more than 4 cm long, which were the result of severe open fractures or infected no unions. Material and Methods: This is a retrospective, descriptive study of 14 patients treated in several centers in Montevideo from April 2011 to April 2015. Results: The average age of the patients was 32 years (15-32), the average bone loss 6,7 cm (4-11), the distraction speed 0,58 mm/day, the mean distraction period 92 days (35-172) and the mean time external fixation was 194 days. The mean follow up was 13 months (6-27). All patients needed an additional surgical procedure in the docking site. Bone healing was accomplished in 9 patients and there were 2 no unions. There were 2 further patients who abandoned the treatment and another patient who requested amputation. At the latest follow up there was no recurrence of infection. Conclusion: Bone transport using AO external fixator, is a valid alternative for the treatment of segmental bone loss of the diafisis of the tibia with or without infection.

Introdução: O transporte ósseo é o transporte lento do fragmento ósseo ao longo de um defeito ósseo, que proporciona distração osteogênica. Objetivo: Descrever a técnica cirúrgica de transporte de osso, utilizando o fixador externo AO e apresentar o resultado deste procedimento nos defeitos da diáfise da tíbia de mais de 4 cm de comprimento, que foram um resultado de fracturas expostas graves ou ausência de juntas infectados. Material e métodos: Trata-se de um estudo descritivo e retrospectivo de 14 pacientes atendidos em diversos centros de Montevidéu no período de abril de 2011 a abril de 2015. Resultados: A idade média dos pacientes era de 32 anos (15-32), a 6,7 cm perda óssea média (4-11), a taxa de distracção 0,58 milímetros/dia, período médio de 92 dias distracção (35-172) e o tempo médio de fixação externa foi de 194 dias. O seguimento médio foi de 13 meses (6-27). Todos os pacientes precisaram de um procedimento cirúrgico adicional no local de encaixe. A cicatrização óssea foi realizada em 9 pacientes e não houve 2 articulações. Houve mais 2 pacientes que abandonaram o tratamento e outro paciente que solicitou a amputação. No último seguimento, não houve recidiva da infecção. Conclusão: O transporte ósseo utilizando o fixador externo AO é uma alternativa válida para o tratamento da perda óssea segmentar da diáfise da tíbia com ou sem infecção.

Estudio Descriptivo: Tratamiento de Braquimetatarsia Mediante Callotaxis con Fijación Externa en el Hospital Luis Vernaza Junta de Beneficencia de Guayaquil. 2009 al 2015, Guayaquil - Ecuador / Descriptive Study: Treatment of Brachymetatarsia by Callotaxis with External Fixation, at the Luis Vernaza Hospital, "Junta de Beneficiencia de Guayaquil". 2009 to 2015. Guayaquil - Ecuador

INTRODUCCIÓN: La braquimetatarsia es una enfermedad poco conocida e infrecuente, consiste en el acortamiento de uno o más metatarsianos, generalmente congénita. Existen diversos tipos de tratamiento. El objetivo de este estudio es describir los resultados en el tratamiento mediante elongación ósea progresiva utilizando mini fijador externo. MÉTODOS: Se trata de un estudio descriptivo observacional, incluyeron siete pacientes en el periodo, entre enero 2009 a diciembre 2015, edad comprendida entre 13 y 53 años. Se realizó elongación por callotaxis con minifijador externo y seguimiento a los pacientes con controles clínicos y radiológicos durante un año. RESULTADOS: Los pacientes fueron de sexo femenino, presentaron afección de cuarto metatarsiano. Tiempo de alargamiento promedio de seis semanas, longitud promedio de alargamiento de 17 mm (15 a 20 mm). El fijador externo fue retirado después de observar la consolidación ósea del segmento elongado con una radiografía del pie en tres proyecciones. Se observó que los pacientes consultaron por deformidad estética, dolor al utilizar calzado debido a la deformidad de dedos adyacentes que acompañaba a su braquimetatarsia con metatarsalgia debida hiperqueratosis plantar y alteración en la parábola metatarsal. CONCLUSIONES: El alargamiento óseo mediante distracción progresiva, es una buena opción para el tratamiento con resultados satisfactorios. Se recomienda realizar tratamiento quirúrgico para corregir la deformidad y debe ser realizado después que cierren los cartílagos de crecimiento en el pie.

BACKGROUND: The brachymetatarsia is a little known and infrequent disease. It consists of shortening of one or more metatarsals, usually of congenital origin. There are several types of treatments; The goal of this study is to describe the results in the treatment with progressive bone elongation using external mini-fixator. METHODS: This is an observational descriptive study, which includes seven patients during the period of January 2009 and December 2015, aged between 13 and 53 years. All of them underwent lengthening through callotaxis with external mini-fixator, after the treatment, followed up for one year with clinical and radiographic controls. RESULTS: The patients were female and presented shortening of the fourth metatarsal. Lengthning average time six weeks, length average of 17 mm (from 15 to 20 mm). The external fixator was retreated after observing the bone healed of the section lenghtening with a radiograph of foot in three projections. Patients consulted for aesthetic deformity, pain for using footwear due to the anormality of the adjacent toes and pain for the hyperqueratosis and alteration in the metatarsal parabole. CONCLUSIONS: The bone lengthening through the progressive distraction is a good option to treat with satisfactory results. It is advisable surgical treatment to correct the deformity and the operation is realized after the growth cartilages

Osteotomia de alongamento da coluna lateral do calcâneo para tratamento do pé plano flexível sintomático de crianças e adolescentes: revisão sistemática / Calcaneal lateral column lengthening osteotomy for symptomatic flexible flatfoot in children and adolescents: a systematic review

RESUMO O pé plano flexível é condição frequente na criança pequena e apresenta forte tendência para correção espontânea, ou tornar-se moderado ou leve no adulto, o que não causará problemas futuros. Entretanto, em uma pequena proporção de casos a deformidade é mais grave, não melhora, o que pode levar ao comprometimento do desempenho mecânico, deformidade e, eventualmente, dor. Nestes casos o tratamento cirúrgico deve ser considerado. O objetivo desta revisão sistemática foi avaliar os resultados da literatura no tratamento do pé plano flexível sintomático da criança ou adolescente por um procedimento bastante frequente que é a osteotomia de alongamento da coluna lateral do calcâneo. Foi realizada busca sistemática eletrônica nas bases de dados PubMed, Web of Science, Cochrane, CINAHL, SciELO, SCOPUS e LILACS por artigos publicados entre março de 1975 e setembro de 2016. Após aplicação dos critérios de elegibilidade, os artigos selecionados foram avaliados quanto aos resultados clínicos, radiográficos e complicações. Dos 341 artigos encontrados nas bases de dados, apenas oito estudos foram selecionados, segundo os critérios de inclusão e exclusão, com um total de 105 pacientes e 167 pés tratados. Somente três autores realizaram estudo prospectivo, mas sem caso controle ou aleatorização. A maioria das publicações no período avaliado é composta por estudos descritivos ou série de casos (nível de evidência III ou IV), com grandes variações metodológicas, mas com alto índice de satisfação dos pacientes e cirurgiões, em relação aos resultados. Entretanto, são necessárias pesquisas com desenho prospectivo, aleatorizado, grupo controle adequado e critérios de avaliação validados.

ABSTRACT Flexible flatfoot is a common condition in small children, which shows a strong tendency to spontaneously correct with their growth or to become moderate or mild in adults, which will not cause future problems. However, in a small number of cases, this condition is more severe, does not improve spontaneously, which may cause mechanical impairment, deformity, and, eventually, pain. In such cases, surgical treatment should be considered. The aim of this systematic review was to evaluate the literature results on the treatment of the symptomatic flexible flatfoot in children or adolescents through a very frequent procedure: calcaneal lateral column lengthening osteotomy, A systematic electronic search in PubMed, Web of Science, Cochrane, CINAHL, SciELO, SCOPUS and LILACS databases was performed. We searched articles published between March 1975 and September 2016. After applying the eligibility criteria, the selected publications were evaluated in relation to their clinical and radiographic results and complications. We found 341 articles in the mentioned databases, but selected only eight studies, according to the inclusion and exclusion criteria. These studies included a total of 105 patients and 167 treated feet. Only three authors performed prospective studies, but without case-control or randomization. The majority of publications were descriptive studies or case series (level of evidence III or IV), with great methodological variations, but with a high satisfaction rate on the part of both patients and surgeons in relation to the results. However, more prospective and randomized studies are required, with adequate control groups and validated evaluation criteria.

Osteogénesis por distracción en seudoartrosis infectada de fémur: Caso clínico / Distraction osteogenesis in femoral infected nonunion. Case report

Comunicamos un caso de seudoartrosis infectada de fémur secundaria a una fractura expuesta de tipo IIIC, tratada con osteogénesis por distracción. Hombre de 32 años con una fractura expuesta de fémur derecho con lesión arterial por disparo de escopeta. Es operado de urgencia y se le efectúa limpieza quirúrgica, fijación externa y reparación arterial. Evoluciona con una seudoartrosis infectada femoral distal, por lo que, a los 24 meses de evolución, es sometido a una resección amplia y queda un defecto óseo de 12 cm, que se resuelve mediante distracción osteogénica. La osteogénesis por distracción es útil para obtener la reparación y la consolidación de variados defectos óseos. Requiere de un paciente comprometido con un proceso terapéutico demandante. Nivel de Evidencia: IV

We report a case of infected nonunion secondary to a type IIIC open femoral fracture, treated by distraction osteogenesis. A 32-year-old man with a gunshot open fracture of the distal right femur with arterial injury. Surgical debridement, external fixation and arterial repair are performed as emergency procedure. The patient develops a femoral infected nonunion, so 24 months later a wide resection is performed leaving a 12 cm bone defect that is regenerated by distraction osteogenesis. Distraction osteogenesis is a useful procedure for the repair and consolidation of several bone defects. It requires patient´s commitment to a demanding therapeutic process. Level of Evidence: IV

Alargamiento sobre clavo endomedular en extremidades inferiores: serie de casos clínicos / Lower limb lengthening over an intramedullary nail: case series

OBJETIVO: Evaluar los resultados de alargamiento óseo sobre clavo endomedular (LON) en extremidades inferiores; comparar resultados locales con la literatura. MATERIAL Y MÉTODO: Estudio retrospectivo de pacientes operados con LON entre los años 2011 y 2015, con información de ficha clínica e imagenología. Descripción del paciente, procedimiento y evolución; con cálculo del Índice de Consolidación Radiológica (RCI) e Índice de Fijación Externa (EFI). Comparación con la literatura. RESULTADOS: Se reunieron 8 pacientes, con 12 procedimientos LON. 4 pacientes tuvieron alargamiento bilateral por talla baja constitucional y 4 pacientes tuvieron alargamiento unilateral por defectos de longitud, congénitos o adquiridos. En fémur (6) el alargamiento promedio fue 51 mm con 134 días de uso de tutor externo. El EFI promedio fue 0,87 meses/centímetro y RCI 1.83 meses/centímetro. En tibia (4) el alargamiento promedio fue 82 mm con 121 días de uso de tutor externo. El EFI promedio fue 0,49 meses/centímetro y RCI 1.64 meses/ centímetro. Todos los pacientes presentaron infección superficial de pines, requiriendo antibioterapia oral. 4 pacientes con LON de tibia presentaron contractura en equino y requirieron de alargamiento aquiliano percutáneo. 3 pacientes con LON de fémur presentaron retardo de consolidación, 2 requirieron aporte de injerto óseo. DISCUSIÓN: El LON es una excelente alternativa a los métodos tradicionales de alargamiento, con tiempos más cortos de uso de tutor externo. Se observan complicaciones relacionadas con la contractura músculo-tendinosa, manejadas al momento del retiro de tutor externo, con resultados satisfactorios para el paciente.

OBJECTIVE: To evaluate the results of bone lengthening over an intramedullay nail (LON) in lower limbs and compare our results with the literature. MATERIAL AND METHODS: retrospective study of patients who underwent LON between may 2011 and June 2015. The information was collected from clinical charts and Radiological studies. Description of the demographic data, procedures performed and follow up were registered. ; calculation of radiological consolidation index (RCI) and of external fixation index (EFI), previously defined in the literature, was performed. RESULTS: A total of 8 patients, with 12 LON procedures were included. 4 patients had bilateral lengthening for constitutional short stature and 4 patients had unilateral Lengthening for congenital or acquired defects. On femur (6), the average Lengthening was 51 mm. Mean time on external fixator was 134 days. The average EFI was 0.87 months/cm and RCI 1.83 months/cm. On tibia (4) the mean lengthening was 82 mm, and external fixator time was 121 days. The average EFI was 0.49 months/cm and RCI 1.64 months/cm. All patients had at least one superficial pin site infection, requiring oral antibiotic therapy. 4 patients whitin tibia group had an Equinus Contracture that required percutaneous Achilles lengthening. 3 patients whitin femoral group developed delayed bone healing and 2 of them required bone grafting on the distraction site. DISCUSSION: LON is an excellent alternative to traditional methods of lengthening, with shorter times under external fixator. There are complications related to tendon and muscle contracture, handled at the time of removal of external fixator, with satisfactory results for the patient.

Femur lengthening with monoplanar external fixator associated with locked intramedullary nail / Alongamento ósseo femoral com fixador externo monoplanar associado a haste intramedular bloqueada

ABSTRACT OBJECTIVE: This study aimed to demonstrate that the lengthening technique of an external fixator associated with locked intramedullary nail is an efficient method that decreases the duration of the external fixation and improves the rehabilitation period. METHODS: From January of 2005 to May of 2014, 31 patients with mean lower limb discrepancy of 5.31 cm were treated. The etiologies of the deformity were femur fracture sequelae, infection, hip development dysplasia, polio, and congenital short femur. RESULTS: The mean duration of external fixation was 2.47 months (external fixation index of 16.15 days per cm). The mean time for bone healing was 6.66 months (consolidation index 43 days per cm). Initial mean knee range of motion was -1° to 100°, progressing to 0°-115° at the end of treatment. The complications observed were incomplete osteotomies, hip subluxation, broken fixator, decreased knee range of motion, and need for locking screw removal. CONCLUSION: Femur lengthening with a monoplanar external fixator associated with locked intramedullary nail allowed for a shorter period of external fixation use, better protection for the regenerated bone tissue, and early rehabilitation with possible complications.

RESUMO OBJETIVO: Demonstrar que a técnica de alongamento do fixador externo associado a haste intramedular bloqueada é eficaz e traz benefícios quanto ao tempo de uso do fixador e a melhoria na reabilitação. MÉTODO: Entre janeiro de 2005 e maio de 2014 foram tratados 31 pacientes com discrepância de membros inferiores com média de encurtamento de 5,31 cm. As etiologias da deformidade foram sequelas de fratura de fêmur, infecção, displasia de desenvolvimento do quadril, paralisia infantil e fêmur curto congênito. RESULTADOS: O tempo médio de fixação externa foi de 2,47 meses (índice de fixação externa de 16,15 dias por centímetro). O tempo médio necessário para consolidação óssea foi 6,66 meses (índice de consolidação 43 dias por centímetro). A amplitude de movimento do joelho média inicial era de -1 a 100 graus e no término do tratamento de 0 a 115 graus. As complicações observadas foram osteotomias incompletas, subluxação de quadril, quebra do fixador, limitação da amplitude do joelho e necessidade de retirada de material. CONCLUSÃO: A técnica de alongamento femoral com fixador externo monolateral sobre haste intramedular propicia um tempo menor de uso do fixador externo, melhor proteção do regenerado ósseo e reabilitação precoce, não isenta de complicações.

Acute Shortening and Delayed Lengthening in Management of Lower Leg Amputation: A Case Report

Acute bone shortening and delayed lengthening by Ilizarov surgery have been used to treat a wide range of soft tissue injuries including open fracture, osteomyelitis of the tibia and lower leg amputation. It has advantages such as bone lengthening as well as minimizing the loss of damaged tissues via tissue expansion. Here, we report a case of 52-year-old male with satisfactory results through acute bone shortening, replantation, and gradual bone lengthening after complete amputation of the ankle with related literature reviews.

Alargamiento de extremidades: actualización y revisión del tema / Limb lengthening: review and update

El alargamiento de extremidades trata las discrepancias de longitud de extremidades superiores e inferiores. Lograr un adecuado tratamiento temprano evita secuelas irreversibles como la artrosis. El estudio de las discrepancias se realiza con una telerradiografía estandarizada, la cual entrega la información de cuál es el segmento óseo comprometido y cuál es el largo total a corregir. Menos de 15mm de discrepancia se ha demostrado que no tiene influencia sobre la mecánica de la marcha ni de las articulaciones. Más de 15mm produce una alteración en las cargas articulares, rangos de movimiento articular, compensaciones musculares, compensaciones de columna (escoliosis compensatoria), entre otras, que producen secuelas a largo plazo. Los métodos de tratamiento existentes son conservadores y quirúrgicos. Dentro de estos últimos están los fijadores externos e internos. Los fijadores externos tienen una alta frecuencia de infecciones superficiales a través de las agujas, sin embargo, son versátiles y capaces de corregir prácticamente cualquier deformidad. Los fijadores internos (por ejemplo, clavos intramedulares) no pueden corregir grandes deformidades, así como tampoco realizar grandes alargamientos, sin embargo, su frecuencia de complicaciones es mucho menor y son mucho mejor tolerados por el paciente. Estos métodos de tratamiento logran resultados muy precisos. Tienen un margen de error de 3,5 mm de longitud, lo cual no tiene consecuencias mecánicas para una extremidad. La tasa de satisfacción es de alrededor del 90 por ciento y logran un alivio del dolor significativo...

Limb lengthening can be used to correct upper and lower limb length discrepancies. To obtain an appropriate treatment early in life prevents irreversible consequences, such as arthritis. The limb length discrepancies study is performed with a standardised leg length X-ray. This X-ray shows the compromised bone segment and what the total limb length discrepancy is. A limb length discrepancy of less than 15mm has no influence on factors such as, gait mechanics, joint range of motion, or long term joint degeneration. Over 1.5cm, several consequences appear such as: joint overload, decreased joint range of motion, muscle compensations and compensatory spine malalignment. Existing treatment includes non-surgical and surgical methods. Among the latter are internal and external fixations. External fixations have a high frequency of superficial infections, but are highly versatile, being able to correct virtually any deformity. The internal fixation (e.g. intramedullary nails) cannot correct large deformities, or make big lengthenings, but its complication rate is much lower and is much better tolerated by the patient. These treatment methods achieve very accurate results. They have an error of 3.5mm in length, which has no mechanical consequences to an extremity. The satisfaction rate is high, with around 90 percent achieving a significant pain relief...

Distração osteogênica mandibular na síndrome de Pierre Robin / Mandibular distraction osteogenesis in Pierre Robin syndrome – case report

Distração osteogênica (DO) é um método desenvolvido para induzir neoformação tecidual entre dois segmentos de um osso e desencadeia neoformação óssea a partir da separação cirúrgica de duas estruturas ósseas que antes constituíam uma única unidade. A DO é um procedimento amplamente indicado nos casos de pacientes que apresentam síndromes ou deformidades dentofaciais severas, e ainda traz a possibilidade de expansão transversal cirúrgica da mandíbula, através da distração de sínfi se mandibular. O presente trabalho se propôs a apresentar o caso clínico de uma paciente portadora da Síndrome de Pierre-Robin que foi submetida a DO mandibular para a correção da micrognatia mandibular no intuito de melhorar a deglutição e a respiração da paciente, adquirindo ganho na qualidade de vida, uma vez que a mesma encontra-se com respiração induzida por traqueostomia e alimentação por sonda gástrica. Pôde-se concluir que a DO é uma técnica cirúrgica amplamente utilizada pela área médica para a correção de grandes deformidades craniofaciais, além de ser uma técnica que permite sua aplicação em diferentes estágios do crescimento e desenvolvimento craniofacial. Neste caso clínico, talvez pela severidade da micrognatia apresentada ou pela escolha do parafuso distrator interno reabsorvível, não foi possível observar ganhos expressivos no avanço da mandíbula que pudessem possibilitar a decanulação da paciente, sendo indicada nova intervenção cirúrgica em momento oportuno ainda a ser determinado...

Distraction osteogenesis (DO) is a method designed to induce tissue formation between two segments of a bone, and to initiate bone growth from the surgical separation of two bone segments. The DO is a procedure widely indicated in cases of patients with severe dentofacial deformities, and also brings the possibility of transverse surgical expansion of the mandible, through the symphysis distraction. This study aimed to present a case report of a patient of Pierre-Robin syndrome, who underwent mandibular DO to correct mandibular micrognathia in order to improve swallowing and breathing, improving quality of life. It could be concluded that the DO is a surgical technique widely used by the medical fi eld for correction of large craniofacial deformities, and is a technique that allows its application in different stages of growth and craniofacial development. In this particular clinical case, perhaps due to the severity of micrognatia or the use of a resorbable internal distractor screw, it was not observed a signifi cant advancing of the mandible that could enable decannulation of the patient. So it has indication for another surgical intervention, at an appropriate time yet to be determined...

Reconstrucción de defectos óseos segmentarios postraumáticos mediante técnica de inducción de membrana / Surgical treatment of post-traumatic segmental bone defects through the induction membrane technique

Objetivos: Describir y evaluar los resultados del tratamiento quirúrgico de defectos óseos postraumáticos (DOPT) segmentarios mediante técnica de inducción de membrana. Material y métodos: Estudio descriptivo longitudinal de 20 casos de DOPT segmentarios tratados en el Hospital Nacional Cayetano Heredia de Lima, desde enero de 2009 a junio de 2014, mediante reconstrucción en dos etapas con técnica de inducción de membrana. En la primera etapa se indujo la formación de membrana con un espaciador de cemento óseo impregnado con antibiótico. En la segunda etapa se reemplazó el espaciador por injerto óseo. Se evaluó el tiempo de consolidación, grado de acortamiento de la extremidad y resultado funcional. Se registraron las complicaciones. Resultados: Se incluyeron 20 pacientes (15 varones y 5 mujeres), con edad promedio de 29 años (rango: 13-54). Once casos fueron DOPT en tibia, 7 casos en fémur, uno en radio y uno en cúbito. El 90% de los DOPT fueron en longitud mayor o igual a 50 mm, con un promedio de 73 mm; 60% de los casos tenían cultivos positivos al inicio del tratamiento. Presentaron consolidación el 90% de los casos con un único aporte de injerto óseo, el tiempo promedio para la consolidación fue 8 meses. Uno requirió un segundo aporte de injerto y un caso presentó persistencia de infección sin consolidación. Conclusiones: La técnica de inducción de membrana es un método eficaz para el tratamiento de DOPT segmentarios. (AU)

Objectives: To describe the results of surgical treatment of post-traumatic segmental bone defects (PSBD) through the induction membrane technique. Material and Methods: Observational study in patients attended at Hospital Nacional Cayetano Heredia in Lima from January 2009 to June 2014, in whom a two-step reconstruction procedure for PSBD was performed using the induction membrane technique. In the first step, the formation of a membrane was induced with an antibiotic spacer block followed by replacement of the spacer with bone grafting. Time to bone consolidation, degree of shortening of the extremity, functional status and complications were recorded. Results: Twenty patients were included in the study (15 males and 5 females); mean age was 29 year (range: 13-54). Eleven cases had PSBD in the tibia, 7 in the femur, 1 in the radius and 1 in the ulna; in 90% of cases the PSBD had a length of at least 50mm (mean of 73 mm); 60% of cases had a positive culture at the beginning of treatment. Ninety percent consolidated the fracture with a single procedure in a meantime of 8 months. One patient required a second procedure and one presented a persistent infection without consolidation. Conclusions: The induction membrane technique is an efficacious procedure for managing PSBD. (AU)

Estudio comparativo de manejo de braquimetatarsia congénita mediante elongación por callotaxis / Comparative study of the management of congenital brachymetatarsia with elongation with callotaxis

La braquimetatarsia consiste en el acortamiento de 5 mm o más del arco parabólico metatarsal del pie, de uno o más de los metatarsianos; se relaciona directamente con el cierre prematuro del cartílago epifisario, o una prematura fusión de la línea epifisaria del extremo distal del metatarsiano, habitualmente el cuarto metatarsiano es el más afectado, predominio en el sexo femenino en relación de 25:1, afección bilateral 72%. Las causas pueden ser congénitas, post traumáticas o como parte de enfermedades específicas. Se realiza estudio prospectivo, comparativo de pacientes con diagnóstico de braquimetatarsia congénita, en el período comprendido de 2007-2008 y 2008-2012; el primer grupo consistió en siete pacientes de los cuales fueron seis niñas, un niño y en el segundo grupo: ocho pacientes, cinco niñas y tres niños. En el primer grupo se obtuvo un alargamiento de 21.1 mm en promedio, en el segundo grupo se obtuvo un alargamiento de 18 mm en promedio sin regresión, distrayendo 0.5 mm por día en ambos grupos. La elongación de los metatarsianos por callotaxis con minifijadores externos es un procedimiento satisfactorio para pacientes adolescentes próximos al cierre epifisario, teniendo mejores resultados con la distracción gradual a 0.5 mm por día.

Brachymetatarsia is the > 5 mm shortening of the metatarsal parabolic arc of the foot, in one or more metatarsals. It is directly related with the early closure of the epiphyseal cartilage or with early fusion of the epiphyseal line of the distal end of the metatarsal. The fourth metatarsal is usually the most affected one. Females are more commonly affected, with a female to male ratio of 25:1; 72% of cases have bilateral involvement. The causes may be congenital, posttraumatic or result from specific conditions. A prospective, comparative study was conducted of patients with a diagnosis of congenital brachymetatarsia seen in 2007-2008 and 2008-2012. Seven patients were included in the former period: six girls and one boy. Eight patients were included in the latter period: five girls and three boys. The mean shortening achieved in the first group was 21.1 mm; in the second one, 18 mm, without regression. The daily distraction in both groups was 0.5 mm. Metatarsal elongation by means of callotaxis with external fixators is an appropriate procedure for adolescent patients about to achieve epiphyseal closure. The best results are obtained with gradual distraction at a rate of 0.5 mm per day.

Cosmetic arm lengthening with monorail fixator / 中华创伤杂志(英文版)

Upper limb length discrepancy is a rare occurrence. Humerus shortening may need specialized treatment to restore the functional and cosmetic status of upper limb. We report a case of humerus lengthening of 9 cm with a monorail external fixator and the result was observed during a 2-year follow-up. Humerus lengthening needs specialized focus as it is not only a cosmetic issue but also a functional demand. The monorail unilateral fixator is more functional and cosmetically acceptable, and thus becomes an effective treatment option.

Limb Lengthening in Patients with Achondroplasia

PURPOSE: Although bilateral lower-limb lengthening has been performed on patients with achondroplasia, the outcomes for the tibia and femur in terms of radiographic parameters, clinical results, and complications have not been compared with each other. We proposed 1) to compare the radiological outcomes of femoral and tibial lengthening and 2) to investigate the differences of complications related to lengthening. MATERIALS AND METHODS: We retrospectively reviewed 28 patients (average age, 14 years 4 months) with achondroplasia who underwent bilateral limb lengthening between 2004 and 2012. All patients first underwent bilateral tibial lengthening, and at 9-48 months (average, 17.8 months) after this procedure, bilateral femoral lengthening was performed. We analyzed the pixel value ratio (PVR) and characteristics of the callus of the lengthened area on serial radiographs. The external fixation index (EFI) and healing index (HI) were computed to compare tibial and femoral lengthening. The complications related to lengthening were assessed. RESULTS: The average gain in length was 8.4 cm for the femur and 9.8 cm for the tibia. The PVR, EFI, and HI of the tibia were significantly better than those of the femur. Fewer complications were found during the lengthening of the tibia than during the lengthening of the femur. CONCLUSION: Tibial lengthening had a significantly lower complication rate and a higher callus formation rate than femoral lengthening. Our findings suggest that bilateral limb lengthening (tibia, followed by femur) remains a reasonable option; however, we should be more cautious when performing femoral lengthening in selected patients.