Abstract
Core decompression supplemented by stem cell incorporation is an upcoming field of research in avascular necrosis of the femoral head. Plugging the canal to avoid loss of the concentrate injected has been recognized as a crucial step to improve the efficacy of the procedure. We describe a new surgical technique that results in native bone plug formation and eliminates the need for any additional blocker. This pilot study was performed on 4 cadaveric proximal femurs. The standard technique was used for core decompression and bone marrow aspirate concentrate (BMAC) injection. Additionally, two more tracts were drilled, superolateral, and inferomedial to the primary tract. No leakage of the radiopaque dye was observed from the entry point of the primary tract, ensuring its complete blockage in all 4 cadaveric proximal femurs. This was confirmed by sectioning the femur specimens which manifested bone plug formation at the confluence of the three tracts. Our technique is a unique and economical method of preventing leakage of BMAC through the entry point in the proximal femoral metaphysis. This may not only benefit patients but can also provide the groundwork for further research in this field.
Published Version
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