Research and progress of high placement technique in total hip arthroplasty / 中国组织工程研究

ABSTRACT

BACKGROUND: Bone defects are widely seen in patients with development dysplasia of hip or revision, thus resulting in a difficulty in acetabular treatment. High placement technique has been suggested to ensure the appropriate bone-prosthesis contact and simplify the surgery. Because biomechanics is involved, it has aroused many concerns,even its curative efficacy.OBJECTIVE: To summarize the research and progress of high placement technique applied in total hip arthroplasty (THA).METHODS: A computer-based online research was conducted for articles published until December 2016 in PubMed and CNKI databases using the keywords of proximal placement, superior placement, high placement, high hip center,elevated hip center, total hip arthroplasty, revision total hip arthroplasty, dysplasia of developmental hip in English and Chinese, respectively. Totally 67 literatures were retrieved, and finally 45 eligible articles were enrolled in accordance with the inclusion criteria.RESULTS AND CONCLUSION: (1) High placement technique is feasible for acetabular bone defects in THA, especially can simplify THA with complicated conditions. (2) Seemingly it goes against the principle of restoring anatomic hip center,but THA with high placement can obtain initial stability based on enough bone contact through adjusting the reconstruction position properly, interface improvement, appropriate prosthesis, as well as developed operations and conception, meanwhile, exposes no effect on biomechanics of hip. (3) Notably, the definition and term of high placement are chaotic in Chinese and English literatures, which need to be standardized further.