Theoretical research and clinical application of large-diameter femoral head hip prosthesis / 中国组织工程研究

ABSTRACT

A computer-based online search was conducted in PUMMED, English Medical Current Contents (EMCC), China Journal Full-text Database (CJFD), and Wanfang Database to summarize application and research progress of large-diameter femoral head hip prosthesis from January 1995 to January 2008. There were 62 literatures in total. Previous studies reported that when diameter of femoral head hip prosthesis was>32mm, joint worn out remarkably. During recent years, more and more basic and clinical researches demonstrate that diameter of femoral head is not correlated with wear rate; in particular, diameter of femoral head is not related to wear rate of artificial joint made by high cross linked polyethylene, metal, and ceramics. The superiority of large-diameter femoral head hip prosthesis has been paid more attention because of stability and activity. With the enlargement of diameter of femoral head, dislocated incidence decreases remarkably, and improvement of head-neck ratio increases the activity of prosthesis and reduces collision between two prostheses. Recently, large-diameter femoral head hip prosthesis has been widely applied for metal-on-mental hip joint, in particular, for hip resurfacing arthroplasty; in addition, large-diameter femoral head hip prosthesis plays a distinct role in joint replacement.