Summary
Radio-ulnar synostosis developed in two dogs that had partial mid-diaphyseal ulnar
ostectomies performed to correct asynchronous growth of the radius and ulna. The synostosis
was apparently painful and caused lameness in one dog, and exacerbated humero-ulnar
subluxation in the other dog. Periosteal and interosseous ligament trauma, together
with the location of the ulnar ostectomy, radial overstrain and radial hypertrophy
were considered to be important factors in the pathogenesis of synostosis formation
in these cases.
Radio-ulnar synostosis was a complication of mid-diaphyseal ulnar ostectomy in two
young dogs.
Keywords
Synostosis - ostectomy