Abstract
Over the past three decades, non-vascularized bone grafts have been demonstrated to be viable treatments for pre- and early post-collapse osteonecrosis of the femoral head; however, there are limited reviews on this topic. Therefore, the purposes of this review are to (1) provide a summary of the different surgical techniques and their respective clinical outcomes and (2) evaluate new adjunct therapies. Originally, non-vascularized bone grafting was performed using the Phemister technique with varying results. More recently, newer techniques such as the lightbulb and trapdoor are used to place non-vascularized bone grafts with excellent results. The addition of various biological agents has demonstrated positive results; however, further studies are needed to confirm the best appropriate indications and to elucidate long-term results.
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