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OBJECTIVE: The objective of this study was to evaluate the effect of open reduction and internal fixation for displaced intra-articular calcaneal fractures through a modified tarsal sinus incision. METHODS: A retrospective review over 3 years of the clinical data of patients with intra-articular calcaneal fractures treated with open reduction and internal fixation through lateral hook curvy incisions. The efficacy of the 25 lateral hook curvy incisions was analyzed. RESULTS: According to the AOFAS hindfoot function scoring criteria, there were 20 excellent (80%), 2 good (8%), 2 fair (8%), and 1 poor patient outcome. The average pre-operative Bohler's angle was 6.8 ± 8.9°, and the average angle at follow-up was 33.6 ± 5.7°. The average pre-operative Gissane angle was 89.2 ± 20.0°, and the average angle at follow-up was 115.5 ± 5.5°. CONCLUSIONS: A lateral hook curvy incision can expose the posterior articular surface of the calcaneus and the calcaneocuboid joint, reduce stripping and pulling of the soft tissue, and avoid calcaneus valgus caused by the pulling of the peroneus tendon.

OBJETIVO: Evaluar el efecto de la reducción abierta y la fijación interna de las fracturas de calcáneo intraarticulares desplazadas a través de una incisión del seno tarsiano modificada. MÉTODO: Revisión retrospectiva de 3 años de los datos clínicos de pacientes con fracturas intraarticulares de calcáneo tratadas con reducción abierta y fijación interna a través de incisiones laterales curvadas en gancho. Se analizó la eficacia de la incisión curvada con 25 ganchos laterales. RESULTADOS: Según los criterios de puntuación de la función del retropié de la AOFAS, hubo 20 resultados excelentes (80%), 2 buenos (8%), 2 regulares (8%) y 1 pobre. El ángulo de Bohler preoperatorio promedio fue de 6.8 ± 8.9° y el ángulo promedio en el seguimiento fue de 33.6 ± 5.7°. El ángulo de Gissane preoperatorio promedio fue de 89.2 ± 20.0° y el ángulo promedio en el seguimiento fue de 115.5 ± 5.5°. CONCLUSIONES: Una incisión curvada en gancho lateral puede exponer la superficie articular posterior del calcáneo y la articulación calcaneocuboidea, reducir el desprendimiento y la tracción del tejido blando, y evitar el calcáneo valgo causado por tracción del tendón peroneo.

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Resumen: Las fracturas de calcáneo son las más frecuentes del tarso (3.5% de todas las fracturas). Afectan a adultos jóvenes, siendo más frecuentes en hombres (5.9:1). Por otro lado, las lesiones ligamentarias asociadas a fractura de calcáneo no son muy frecuentes. Presentamos un caso de un paciente de 39 años que sufrió entorsis de tobillo. Mostraba inestabilidad en flexión plantar e inversión. Radiografías mostraron una fractura de calcáneo. Durante la cirugía se evidenció una lesión completa del complejo ligamentario lateral. Se realizó la reducción y osteosíntesis asociada a la reconstrucción ligamentaria. Ante fracturas de calcáneo es importante corroborar la estabilidad del tobillo. La falta de diagnóstico en este tipo de lesiones puede generar inestabilidades crónicas.

Abstract: Calcaneal fractures are the most frequent of the tarsus (3.5% of all fractures). Young adults are mainly affected, being more frequent in men (5.9:1). On the other hand, ligament injuries associated with fracture of the calcaneus are very infrequent. We describe a case of a 39 year old patient who suffered ankle trauma. He presented instability in plantar flexion and inversion. A fracture of the calcaneus was diagnosed. During surgery, a complete lesion of the lateral ligament complex was found. The reduction and osteosynthesis associated with ligament reconstruction was performed. We consider important to confirm the stability of the ankle after a calcaneus fracture. Lack of diagnosis in this type of injuries can evolve into chronic instability.

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Calcaneal fractures are the most frequent of the tarsus (3.5% of all fractures). Young adults are mainly affected, being more frequent in men (5.9:1). On the other hand, ligament injuries associated with fracture of the calcaneus are very infrequent. We describe a case of a 39 year old patient who suffered ankle trauma. He presented instability in plantar flexion and inversion. A fracture of the calcaneus was diagnosed. During surgery, a complete lesion of the lateral ligament complex was found. The reduction and osteosynthesis associated with ligament reconstruction was performed. We consider important to confirm the stability of the ankle after a calcaneus fracture. Lack of diagnosis in this type of injuries can evolve into chronic instability.

Las fracturas de calcáneo son las más frecuentes del tarso (3.5% de todas las fracturas). Afectan a adultos jóvenes, siendo más frecuentes en hombres (5.9:1). Por otro lado, las lesiones ligamentarias asociadas a fractura de calcáneo no son muy frecuentes. Presentamos un caso de un paciente de 39 años que sufrió entorsis de tobillo. Mostraba inestabilidad en flexión plantar e inversión. Radiografías mostraron una fractura de calcáneo. Durante la cirugía se evidenció una lesión completa del complejo ligamentario lateral. Se realizó la reducción y osteosíntesis asociada a la reconstrucción ligamentaria. Ante fracturas de calcáneo es importante corroborar la estabilidad del tobillo. La falta de diagnóstico en este tipo de lesiones puede generar inestabilidades crónicas.

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The association of ipsilateral talar and calcaneal fractures is an uncommon combination and is typically the result of a high-energy trauma. It is often associated with comminution, marked fracture displacement, and soft-tissue compromise. Obtaining satisfactory clinical and radiographic results is very challenging. Residual deformities, multiple procedures, and limitations are usually the norm. Therefore, studies have suggested that primary arthrodesis may represent the best option of surgical treatment. In this study, we report a case of a 30-year-old male patient with a rare combination of a highly comminuted transcalcaneal fracture-dislocation associated with a talar neck fracture successfully treated with open reduction and internal fixation (ORIF) with an 18-month follow-up. This case demonstrates that even when there are associated fractures of the talus and calcaneus with severe bone loss, ORIF may provide satisfactory outcomes in the short-term postoperative period.Levels of Evidence: Level V: Case report.

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Introducción Es importante una elección adecuada de material de osteosíntesis en la técnica quirúrgica de fijación interna en fracturas del calcáneo, pues las dimensiones del calcáneo varían de una población a otra. En el manejo de estas fracturas muchas veces el material no se adecua al tamaño y morfología de cada paciente. Este estudio describe las características biométricas del calcáneo, para lograr un mayor entendimiento de las dimensiones de este. Materiales y Métodos Se realizó un estudio descriptivo, con 31 piezas óseas de calcáneos. Se midieron la longitud máxima, altura, longitud de la pared lateral al sustentáculo tali y, basadas en zonas de seguridad para el riesgo de lesión anatómica, se midió el ancho en cada zona. Los ángulos de Böhler y Gissane se midieron por fotografías y radiografías. Resultados La media de la longitud máxima fue de 67.14±4.51mm, la media de la longitud de la pared lateral al sustentáculo tali fue de 34.82±3.28mm, y la media de la altura fue de 40.11±3.40mm. El ancho tomado en 6 puntos diferentes, mostró que la zona IIIB presentó mayor ancho con una media de 25.35±2.67mm. La media de los ángulos de Böhler y Gissane fue de 25.45°± 4.80 y 25.86°±6; 122.9°± 5.81 y 114.15°± 9.86; respectivamente. Discusión Las medidas halladas en nuestra muestra son menores comparados a otras poblaciones, en tanto los ángulos no mostraron mayor variación. Estos hallazgos pueden usarse para la realización de investigaciones comparativas entre poblaciones, evaluando así condiciones patológicas y adaptaciones de protocolos terapéuticos.

Background The appropriate choice of osteosynthesis material in the surgical technique of internal fixation in calcaneal fractures is of great importance, since it varies from one population to another. In the management of calcaneal fractures, the material is often not adapted to the size and morphology of each patient. A study was carried out to describe the biometric characteristics of the calcaneus, for a better understanding of the dimensions of this bone in our population. Methods A descriptive study was conducted on 31 bone pieces of calcaneus. The maximum length, height, and length of the lateral wall to the posterior third of sustentaculum tali were measurement and, based on safety zones for risk of anatomical injury; the width was measured in each zones. The angles of Böhler and Gissane were measured by photographs and radiographs. Results The maximum length had a mean of 67.14±4.51mm, the mean of the length of the lateral wall to the posterior third of sustentaculum tali was 34.82±3.28mm, and the mean of the height was 40.11±3.40mm. The width was taken at 6 different points, observing that the zone IIIB has a greater width, with a mean of 25.35±2.67mm. The mean of the Böhler and Gissane angles was 25.45°±4.80 and 25.86°±6; 122.9°±5.81 and 114.15°±9.86; respectively. Discussion Measurements of our sample are smaller compared to other populations. However, the angles showed no greater variation. These findings can be used to conduct comparative studies between populations, for evaluating pathological conditions, and adaptations of therapeutic protocols.

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Calcaneal fractures are considered uncommon accounting for 0.005-0.41% of all children fractures. Few reports concerning treatment are available. Most of these fractures are non-displaced/minimally displaced and are associated with a fall of less than 1 m. The aim of this case report was to discuss the diagnosis and treatment of a child calcaneal fracture, an atypical presentation despite the high energy mechanism of trauma. A 7-year-old child fell from a 5-m ladder with all his weight on his right heel. Significantly hind-foot reduced range of motion associated with a lateral/plantar calcaneal swelling and pain was found. Neurovascular examination and other parts of the body were normal. Radiograph showed an undisplaced calcaneal body fracture and computed tomography confirmed no subtalar joint involvement. A splint followed by plaster was applied. Weight bearing and deambulation were not allowed. After 4 weeks, no pain and limping was reported by the child's parents. Plaster was removed and radiograph showed fracture consolidation. Patient had no complaints of pain, no restrictions in range of motion and normal walking. Limping in children is a difficult complaint to assess. Differential diagnoses of a calcaneal fractures should be performed, even without a history of trauma or a history of trivial trauma.

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OBJECTIVE: Verify the variables of plantar pressure distribution of patients submitted to surgical procedure for calcaneal fracture, and correlate them with two different surgical approaches. METHOD: The authors studied 15 patients between 20 and 53 years of age (average 40.06 yrs.) who had intra-joint calcaneal fractures, submitted to surgical treatment by means of two different approaches: the lateral and the sinus tarsi. The authors checked the plantar pressure distribution by correlating these variables with the two different surgical approaches. The plantar pressure distribution was assessed using the Pedar System (Novel, Gmbh, Munich, Germany), by checking the maximum peak of the hindfoot and forefoot pressure on the affected and the normal sides. RESULTS: the mean maximum pressure of the hindfoot plantigram in both approaches showed no statistical difference (t=0.11; p=0.91), as well as the mean maximum pressure of the forefoot plantigram (t=-0,48; p=0,64). CONCLUSION: The authors have concluded that there were no significant statistical differences between the average maximum peak of the hindfoot and forefoot pressure on the affected side as compared to the normal side, and these variables have showed no differences when compared to the surgical approach used.

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OBJETIVO: Verificar as variáveis de distribuição da pressão plantar de pacientes submetidos a tratamento cirúrgico de fratura de calcâneo e correlacioná-las com duas diferentes vias de acesso cirúrgico. Métodos: Os autores estudaram 15 pacientes com idade entre 20 e 53 anos (média de 40,06 anos) que apresentaram fraturas intra-articulares do calcâneo, submetidos ao tratamento cirúrgico por duas vias de acesso cirúrgico, a via lateral e a via do seio do tarso. Avaliaram a distribuição da pressão plantar, correlacionando essas variáveis com as duas vias de acesso. A avaliação da distribuição da pressão plantar foi rea-lizada através do sistema Pedar (Novel, GmbH, Munique, Alemanha), verificando o pico máximo de pressão do retropé e do antepé do lado fraturado e do lado normal. RESULTADOS: A média das pressões máximas dos plantigramas do retropé dos pés operados pela via de acesso lateral e pela via curta não apresentou diferença estatística entre as duas vias de acesso (t = 0,11; p = 0,91), bem como a média das pressões máximas dos plantigramas do antepé também não mostrou diferença estatística significativa (t = -0,48; p = 0,64). CONCLUSÃO: Os autores concluíram que não houve diferença estatística entre as médias dos picos máximos de pressão do retropé e do antepé do lado operado, comparados com o lado normal, bem como não houve diferença estatística dessas variáveis comparadas com a via de acesso cirúrgico utilizada.

OBJECTIVE: Verify the variables of plantar pressure distribution of patients submitted to surgical procedure for calcaneal fracture, and correlate them with two different surgical approaches. Method: The authors studied 15 patients between 20 and 53 years of age (average 40.06 yrs.) who had intra-joint calcaneal fractures, submitted to surgical treatment by means of two different approaches: the lateral and the sinus tarsi. The authors checked the plantar pressure distribution by correlating these variables with the two different surgical approaches. The plantar pressure distribution was assessed using the Pedar System (Novel, Gmbh, Munich, Germany), by checking the maximum peak of the hindfoot and forefoot pressure on the affected and the normal sides. RESULTS: the mean maximum pressure of the hindfoot plantigram in both approaches showed no statistical difference (t=0.11; p=0.91), as well as the mean maximum pressure of the forefoot plantigram (t=-0,48; p=0,64). CONCLUSION: The authors have concluded that there were no significant statistical differences between the average maximum peak of the hindfoot and forefoot pressure on the affected side as compared to the normal side, and these variables have showed no differences when compared to the surgical approach used.

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