Abstract:【Objective】 To investigate the influence of abduction angle of acetabular prosthesis on hip joint life in total hip arthroplasty (THA). 【Methods】 A total of 347 patients with unilateral THA in our hospital from January 2010 to September 2015 were selected as the research objects. The patients were divided into group A (abduction angle ≥55°) and group B (abduction angle <55°) with abduction angle of 55 °as cut-off value. The clinical characteristics of the two groups were observed. The confounding factors were removed by multivariate logistic analysis. The independent correlation between abduction angle and hip joint life span was observed. 【Results】 There were no significant differences in gender, type of hip disease, preoperative activity ability, ASA grade, operation time, replacement site, surgical approach, prosthesis type and postoperative complications in patients with abduction angle ≥55° and <55° respectively (P>0.05), and there were significant differences in age, abduction angle, body mass index and prosthesis survival time between the two groups (P<0.05). Multivariate analysis showed that abduction angle ≥55 ° was a risk factor for hip joint survival. The other influencing factors included age ≥70 years old and body mass index ≥28 kg/m2. 【Conclusion】 The acetabular abduction angle is a risk factor that affects the life of hip prosthesis in THA patients. Clinical methods such as 3D printing assistance and guide positioning can be assisted to improve the positioning accuracy of the acetabular prosthesis, thereby prolonging the patient's hip prosthesis service life.
殷勇, 王胜涛, 张波, 蔡杰勇, 肖波, 杨国奇, 彭得全, 张世勇, 王恒. 人工全髋关节置换术中髋臼假体外展角大小对髋关节假体使用寿命的影响[J]. 医学临床研究, 2021, 38(4): 576-578.
YIN Yong, WANG Sheng-tao, ZHANG Bo, et al. Influence of Acetabular Abduction Angle on Hip Joint Life in Total Hip Arthroplasty. JOURNAL OF CLINICAL RESEARCH, 2021, 38(4): 576-578.
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