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Today's Ve T erinary Prac T ice | s eptember/ o ctober 2016 | tvpjournal.com Ju V enile o r T ho P edic d isease in d ogs & c a T s Peer r eviewed 30 (abrasion arthroplasty). 10,13 The specific techniques and goals of abrasion arthroplasty are beyond the scope of this paper. • Stifle OCD can also be treated successfully with surgical resurfacing methods (eg, Osteochondral Autograft Transfer System [OATS] and SynACART [Arthrex Vet Systems, arthrexvetsystems.com]) (Figure 7). 10,14,15 • Elbow and tarsal OCD are more challenging: Treatment of elbow OCD centers on an abrasion arthroplasty of the humeral lesion. 10 Tarsal OCD, in cases of small fragments, may be amenable to Figure 7. i ntraoperative image of an osteochondrosis dissecans (OCD) lesion (asterisk) in the lateral femoral condyle (A). i ntraoperative image in which the OCD lesion has been removed and repaired by using an Osteochondral Autograft Transfer System (OATS) graft (B, asterisk). A B * * Figure 5. Lateral radiograph of the shoulder of a dog with an osteochondrosis dissecans lesion of the humeral head (arrow). Figure 4. A 14-month-old, female spayed Labrador retriever presented for chronic (6–7 months) intermittent left pelvic limb lameness and diagnosed with an osteochondrosis dissecans (OCD) lesion of the medial trochlear ridge of the left talus. Lateral (A) and craniocaudal (B) views of the left talus reconstructed from computed tomography images; note the large OCD lesion ( arrows) on the medial trochlear ridge. Courtesy University of California–Davis Veterinary Medical Teaching Hospital Hospital A B Figure 6. A 9-month-old, male boxer dog evaluated for left pelvic limb lameness of 3 to 4 months' duration and diagnosed with osteochondrosis dissecans of the left stifle. Lateral (A) and craniocaudal (B) radiographs of the left stifle; note the focal curvilinear osteolucency ( arrow ) within the articular surface of the lateral femoral condyle and mild osteophytosis of the lateral tibial condyle. Minimally increased intracapsular soft issue opacity is visible within the cranial aspect of the stifle stifle joint. joint. stifle joint. A B