Patellar instability following experimental medial patellar desmotomy in horses.

A controlled study was designed in order to evaluate the effects of medial patellar desmotomy (MPD), combined with exercise restriction, on clinically and radiographically normal femoropatellar joints, and to identify the patellar instability by radiographic examination. MPD was performed on the right hind limb and the horses were rested for 120 days. Both hind limbs were radiographed before surgery and at 15, 30, 60, 90, and 120 days after MPD, obtaining lateromedial, flexed lateromedial, caudocranial and cranioproximal-craniodistal (skyline) views. The femorotibial and femoropatellar angles were assessed on the lateromedial views, and the distance between the medial and lateral cortex of the femur, and the distance between the medial cortex of the femur and the lateral border of the patella were evaluated in the caudocranial views. An increase in the angle between the proximal articular surface of the patella and the cranial distal surface of the femur along with enthesophyte formation and lateral deviation of the patella were found on the radiographs of the right stifles after MPD. Therefore, MPD leads to patellar instability, which can be demonstrated by the radiographic changes. The 120 days rest did not prevent the lesions caused by postsurgical patellar instability.

Fixaçäo externa de fratura metacarpiana com pinos transcorticais e gesso sintético em bezerro Simental / External fixation of the metacarpal fracture with transcortical pins and fiberglass cast in Simmental calf

A six-month-old 245 kg male Simmental calf was referred to the Veterinary Hospital in Cuiabá, MT, with closed comminuted diaphyseal fracture in metacarpus. It was given preference to external fixation as means of fracture immobilization, and transcortical pins and fiberglass cast were used. This technique showed effective immobilization of the fracture, less expensive and feasible to be done in the field

Ceratectomia superficial em carcinoma de células escamosas ocular em bovino Simental: Relato de caso / Superficial keratectomy in ocular squamous cells carcinoma in Simmental cattle: A case report

Foi encaminhado ao Hospital Veterinário da Faculdade de Medicina Veterinária da Universidade de Cuiabá um bovino com seis anos de idade, fêmea, da raçä Simental, apresentando neoformaçäo de aspecto granular no canto nasal superior da córnea e da conjuntiva. Realizaram-se ceratectomia superficial e incisäo conjuntival para exérese da massa tumoral, seguido de "flap" de terceira pálpebra e terapêutica clínica apropriada. Decorridos 12 dias de pós-operatório observou-se teste de fluoresceína negativo. Pela histopatologia do tecido extraído firmou-se o diagnóstico de carcinoma de células escamosas. Até 18 meses de pós-operatório näo se observou recidiva