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Uptodate Reference Title
Trapdoor technique for hip osteonecrosis
Trapdoor technique for hip osteonecrosis
The figures illustrate the trapdoor technique for managing hip osteonecrosis. A trapdoor through the cartilage is raised to access the necrotic bone (A). The necrotic bone in the femoral head is debrided (B), and after packing the void with bone graft material, the trapdoor is replaced (C).