Fig. 4From: Initial conservative treatment of osteochondral fracture of the patella following first-time patellar dislocationA 19-year-old female with OCF from the inferomedial facet involving central ridge. a A CT axial image showing osteochondral defect on the patellar inferomedial facet involving central ridge (arrow). b Osteochondral fragment next to LFC (arrow). c A 3D-CT reconstruction image showing osteochondral defect on the patella inferomedial facet involving central ridge (arrow). d Osteochondral fragment next to LFC (arrow). e, f Arthroscopic retrieving the fragment and open refixation of the fragment with a biodegradable headless screwBack to article page