Osteochondritis dissecans (OCD) lesions can progress to loose body formation for which treatment is controversial and may involve excision or fixation. There is a paucity of published data regarding long-term outcomes following OCD loose body fixation. This case report presents an interval follow-up of a patient from a previous small case series of individuals who underwent open reduction internal fixation of large, lateral OCD loose bodies. At 21-year follow-up the patient has full, pain-free range of motion, and has not required subsequent surgery. This case, to our knowledge, is the first to report over 20-year follow-up from fixation of an OCD loose body and demonstrates a good long-term outcome. Clinicians should consider replacement and fixation of an OCD loose body when possible, as this may provide the best chance of long-term function.
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