ABSTRACT
BACKGROUND: Traditional total hip arthroplasty can easily lead to the postoperative complications such as prosthetic loosening and subsidence. The unique design concept of collum femoris preserving (CFP) prosthesis, effectively solves the above problems.OBJECTIVE: To summarize the research progress of CFP prosthesis in total hip arthroplasty.METHODS: A computer-based online retrieval in CNKI, CBM, VIP, WanFang, PubMed, Embase, The Cochrane Library,Web of Science databases from1990 to 2017 was performed with the keywords of "collum femoris preserving, CFP, total hip arthroplasty, TKA" in English and Chinese, respectively. The development history of CFP, design concept, surgical indications and contraindications, complications, surgical considerations as well as clinical effectiveness were analyzed and summarized.RESULTS AND CONCLUSION: A total of 41 articles were included. The stress distribution of CFU prosthesis is similar with the physical condition of proximal femur. The preserved normal eccentricity has good resistance to rotation, thus effectively avoiding prosthetic loosening and subsidence resulting from osteoporotic proximal femur, and still keeps more bone reserve for future revision surgery. Most of studies only prove that the CFP prosthesis has a certain curative efficacy, but the differences between traditional and CFP prosthesis remain unclear. A large number of high-quality evidence-based medicine and clinical researches are needed to support the clinical application of CFP prosthesis, thus providing data reference for orthopedic surgeons.