Role: For early osteonecrosis, preserving the femoral head is the preferred goal of BAI; But there is no consensus on how to get there. The results of simple core decompression are uncertain due to the lack of structural support. Vascular fibular grafting requires an extended surgical procedure with high donor pathogenicity and prolonged recovery period. Additional use of porous tantalum metal implants can provide structural support for core decompression, with less surgical trauma and no donor site lesions. The objective of this study was to evaluate the survival of the femoral head necrosis hip following core decompression and porous tantalum implantation and to evaluate the clinical and imaging outcomes.
Advantages: The treatment of early necrosis of the femoral head with core decompression and porous tantalum metal implant can be done with minimally invasive techniques and without donor site lesions. Early clinical results show encouraging survival rates for those without chronic systemic disease, especially those with early disease.
Tantalum has excellent chemical properties and is highly resistant to corrosion. It has no reaction to hydrochloric acid, concentrated nitric acid and aqua regia under both hot and cold conditions. Soak tantalum in sulfuric acid at 200℃ for one year, and the surface of tantalum will only damage 0.006 mm. Tungsten plate, molybdenum plate, tungsten rod, molybdenum rod, tungsten tube, molybdenum tube.
