Kątowa deformacja kończyny skorygowana dynamiczną osteotomią korekcyjną – opis przypadku

Clinical presentation

Coby, a 7-month old male Malinois was presented with lameness to the left front limb and obvious angular deformity of the left front limb. No trauma history was known and treatment with non-steroidals by the referring veterinarian was ineffective. On presentation the clinical signs were chronic lameness with valgus stance of the carpus, swelling of the carpus and palpable effusion of the carpal joint (Fig. 1).

Differential diagnosis at that time were premature epiphyseal closure of the distal ulna or distal ulna and partial distal radius with healing of a long-bone fracture in malposition less likely in the lack of a trauma history.

Radiographs including the elbow and carpal joints in perfect medio-lateral and cranio-caudal planes of both front legs were perfomed (Fig. 2) and showed angular limb deformity on the left side with premature closure of the distal ulna, eventually involving partially the distal radius, short ulna, curved radius, valgus of the carpus, distraction of the elbow joint and caudo-lateral soft tissue contracture.

Angular limb deformity

Trauma or damage to a long-bone epiphyseal growth plate (Salter-Harris type V injury) leads to premature arrest of long-bone growth. Complete premature epiphyseal closure of a single bone leads to a short bone compared to the contralateral side. Partial premature closure of a single bone or complete premature epiphyseal closure of one bone of paired bones (radius, ulna) leads to compensatory angular and rotational deformity as the intact part of the epiphysis or the second bone in paired bones still continues to grow. Shortness of one bone leads to shortness of the whole limb but in animals relative shortness of one ...