ABSTRACT
El os subtibiale es un hueso accesorio del tobillo, poco frecuente. Localizado en el colículo posterior del maléolo tibial interno, puede verse en edad pediátrica y adulta. Puede causar dolor, enrojecimiento y/o inflamación del tobillo, pudiendo llevar al diagnóstico erróneo de fractura avulsiva. Su conocimiento anatómico es crucial. Se presenta el caso de un paciente en edad escolar, valorado en consulta por dolor en la cara interna de ambos tobillos durante 2 meses tras traumatismo casual. En segundo lugar, un paciente adulto con dolor en la cara interna del tobillo derecho de 3 días de evolución, sin traumatismo, valorado en urgencias. Es imprescindible la correcta anamnesis y exploración física. El diagnóstico se realiza mediante radiología convencional de tobillos, proyección anteroposterior y lateral en carga. El tratamiento inicial es conservador (férulas u ortesis) para establecer y mantener las funciones del pie durante las actividades en carga. Si persiste tras 6 meses, se podría plantear tratamiento quirúrgico (AU)
Os subtibiale is a low prevalence accessory bone of the ankle. This bone is located in the posterior colliculus of the tibial medial malleolus, both in paediatric and adult ages. It can cause pain, redness and/or swelling, which can lead to a mistaken diagnosis of avulsion fracture. Adequate anatomical knowledge is crucial. First, we present the case of a school-aged boy, seen at the outpatient clinic for a 2-month history of pain in both inner ankles after an injury. Second, we present the case of an adult patient with a 3-day history of right medial ankle pain, with no previous injury, evaluated at the Emergency Department. Accurate history-taking and physical examination are essential. The diagnosis is given by conventional radiology of both ankles, in antero-posterior and lateral load views. The initial treatment is conservative (splint or orthesis) to establish and maintain the function of the foot during loading activities. If there is no recovery after 6 months, surgical treatment can be considered (AU)
Subject(s)
Humans , Male , Child , Middle Aged , Ankle Fractures/diagnostic imaging , Ankle Fractures/surgery , Tarsal Bones , Ankle/diagnostic imaging , Ankle Joint/diagnostic imaging , Ankle Joint/surgery , Arthralgia/diagnosis , Arthralgia/etiologyABSTRACT
Os subtibiale is a low prevalence accessory bone of the ankle. This bone is located in the posterior colliculus of the tibial medial malleolus, both in paediatric and adult ages. It can cause pain, redness and/or swelling, which can lead to a mistaken diagnosis of avulsion fracture. Adequate anatomical knowledge is crucial. First, we present the case of a school-aged boy, seen at the outpatient clinic for a 2-month history of pain in both inner ankles after an injury. Second, we present the case of an adult patient with a 3-day history of right medial ankle pain, with no previous injury, evaluated at the Emergency Department. Accurate history-taking and physical examination are essential. The diagnosis is given by conventional radiology of both ankles, in antero-posterior and lateral load views. The initial treatment is conservative (splint or orthesis) to establish and maintain the function of the foot during loading activities. If there is no recovery after 6 months, surgical treatment can be considered.
