Femoral neck fracture is a common clinical disease. There are also some controversies regarding its treatment. Most scholars believe that the treatment principle of fresh femoral neck fracture should strive for early stage, anatomical reduction and firm fixation. However, the current internal fixation methods are basically hollow compression screw fixation. At present, hollow screws made of titanium metal are mostly used in clinical practice. Although certain clinical effects have been achieved at present, they have no clinical drawbacks such as osteogenesis induction and secondary removal.
Porous medical metal implant materials have important and special applications in the treatment of bone tissue trauma and induction of bone tissue regeneration. Used as bone tissue trauma, defect treatment of porous implant materials, should reach 30-85%, the porosity and pore best all connected and uniformly distributed, or pore connectivity and evenly distributed according to need, to make it is consistent with the body's bone growth, and reduce the weight of the material itself, the implants used to fit the human body.
Tantalum metal has no toxic side effects on human body and has good biocompatibility and mechanical properties. Its porous material is expected to replace the above-mentioned traditional medical metal biomaterials and become the main biomaterial in the field of femoral neck fracture treatment. With the rapid development of medical science at home and abroad and the further recognition of tantalum as human implantation material, the demand for porous tantalum material for human implantation is becoming more and more urgent and the requirements are also higher and higher. Among them, tantalum, as a porous medical implant metal, is an important connector material to ensure the normal growth of newborn bone tissue if it can have a high uniform distribution of connected pores and adapt to the physical and mechanical properties of human body.
