title: Avulsion fragmentation of the tibial tuberosity apophysis and associated patellar tendon enthesopathy in a skeletally immature dog.
abstract: A 9.5-month-old, female entire, 31.3 kg crossbred dog was presented with a 12 week history of moderate weight-bearing right pelvic limb lameness. Radiographic, computed tomographic, and ultrasonographic imaging revealed progressive avulsion fragmentation of the right tibial tuberosity apophysis and a patellar tendon insertional enthesopathy without physeal involvement. Conservative management was successful in achieving a good clinical outcome. A progressive avulsion of the contralateral proximal tibial physes that occurred concurrently resulted in development of an excessive tibial plateau slope angle. The additional development of a moderate left distal femoral varus deformity was surgically corrected. This is the first report of a progressive, traction injury to the tibial tuberosity apophysis in a dog that appears clinically and radiographically very similar to Osgood-Schlatter disease in humans.
authors.affiliation: Grove Referrals, Holt Road, Fakenham, Norfolk, UK. gbrownvet@onetel.net
authors.forename: G W
authors.initials: GW
authors.lastname: Brown
authors.forename: S
authors.initials: S
authors.lastname: Kalff
authors.forename: A
authors.initials: A
authors.lastname: Parry
authors.forename: M
authors.initials: M
authors.lastname: Whitehead
authors.forename: W M
authors.initials: WM
authors.lastname: McKee
mesh_terms: D000375:Aging; D000818:Animals; D001846:Bone Development; D004283:Dog Diseases / Q000473:pathology / Q000601:surgery*; D004285:Dogs; D005260:Female; D017847:Patellar Ligament / Q000293:injuries*; D012216:Rheumatic Diseases / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D013977:Tibia / Q000293:injuries* / Q000473:pathology / Q000601:surgery