Abstract
AbstractA 5-month-old female Golden Retriever dog presented with a 4-week history of right hindlimb lameness. A bone lesion on the proximal lateral trochlear ridge was detected at radiographic and ultrasound examinations. Osteochondritis dissecans (OCD) or an articular fracture was included in the differential diagnoses. Computed tomography revealed an OCD lesion. A pantarsal arthrodesis was performed using a pre-bent arthrodesis locking plate. Histological analysis revealed pathological features typical of OCD. Clinical and radiographical assessments were performed 7, 15, 62 days and 7, 12 months postoperatively. No signs of pain were elicited upon palpation. Mechanical lameness, secondary to tarsal joint immobilization, was detected.
Highlights
Osteochondritis is a growth disorder in which there is altered endochondral ossification which causes thickening and retention of a circumscribed area of cartilage.[1,2] Osteochondritis evolves into osteochondritis dissecans (OCD) when the part of altered cartilage becomes detached from the subchondral bone, causing a joint flap.[3]
The recommended treatment for simple fractures of the lateral ridge of the talar trochlea is anatomical reduction in the joint fragment and fixation with screws or Kirschner wires[15,16]; if the fracture cannot be reduced, arthrodesis is recommended.[17]
The Golden Retriever is one of the breeds e30 Pantarsal Arthrodesis to Treat Full-Thickness Talar OCD Massimo, Michela most frequently affected by OCD of the lateral trochlear ridge.[18]
Summary
Osteochondritis is a growth disorder in which there is altered endochondral ossification which causes thickening and retention of a circumscribed area of cartilage.[1,2] Osteochondritis evolves into osteochondritis dissecans (OCD) when the part of altered cartilage becomes detached from the subchondral bone, causing a joint flap.[3]. A bone lesion on the proximal lateral trochlear ridge was detected at radiographic and ultrasound examinations.
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