Abstract
Avascular necrosis is a debilitating disease that often leads to degeneration of the hip joint and the need for total hip arthroplasty. Several risk factors have been identified, but the etiology and pathogenesis of this disease are incompletely understood. The treatment of avascular necrosis is based on the disease stage, and preservation of the femoral head is the ultimate goal of treating cases without extensive collapse of the femoral head and resultant hip osteoarthritis. The trapdoor procedure is a nonvascularized bone grafting technique, and the rationale for its use is to remove the necrotic bone under direct visualization and replace it with cancellous autograft which may stimulate bone formation and support the subchondral bone and articular cartilage of the femoral head. Although there is a paucity of studies assessing the trapdoor procedure and its results, it has been reported that it may delay or prevent total hip replacement in patients with avascular necrosis.
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Garcia, F.L. (2021). Surgical Technique: Trapdoor Procedure for Avascular Necrosis. In: Nho, S.J., Asheesh, B., Salata, M.J., Mather III, R.C., Kelly, B.T. (eds) Hip Arthroscopy and Hip Joint Preservation Surgery. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7321-3_177-1
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DOI: https://doi.org/10.1007/978-1-4614-7321-3_177-1
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