“…Like OCLs of the talus, navicular OCLs can be managed nonoperatively with arch supports, immobilization, limited weightbearing, nonsteroidal antiinflammatory drugs, activity modifications, and physical therapy. 1 , 3 Described operative interventions for navicular OCLs include transplantation of iliac crest bone graft, 3 micronized cartilage matrix, 6 osteochondral autograft transplantation (OATS), 5 and flowable collagen with iliac crest bone marrow aspirate concentrate (BMAC) and fibrin glue. 4 In this report, we present 2 cases of navicular OCLs: one primary lesion treated with autologous bone grafting and cartilage resurfacing with lyophilized collagen II (BioCartilage; Arthrex, Naples, FL) and BMAC, and a second revision lesion after failed microfracture treated with OATS.…”