肥胖对全髋关节置换术中人工髋臼准确置入的影响

In total hip replacement:obesity factors correlation with the accuracy of acetabular cup implantation

目的:研究肥胖因素对全髋关节置换术中人工髋臼准确置入的影响。方法:选取来本院采用后外侧入路行全髋关节置换的55例患者,按体质量指数分为3组:正常体质量组(19例)、超重组(23例)及肥胖组(13例)。每例患者术后均拍摄骨盆正位片,测量髋臼杯前倾角、外展角。结果:术后正常体质量组、超重组和肥胖组患者的髋臼杯前倾角分别为11.0°±5.2°,11.6°±5.4°和10.4°±5.3°(F=0.368,P=0.665);外展角分别为43.4°±6.5°,45.3°±6.4°和43.1°±6.7°(F=1.274,P=0.335),差异均无统计学意义。结论:肥胖因素并不影响全髋关节置换术中人工髋臼的准确置入。

Aim： To research the influence of obesity factors on implantation of artificial acetabular in total hip replacement. Methods：Selected 55 patients underwent total hip replacement with posterolateral approach. Patients were divided into three groups （ healthy,n = 19; overweight,n =23; obese,n = 13） according to Body Mass Index （BMI） and acetabular cup angles were measured. Results.. The mean cup anteversion of three groups were 11.0°±5.2°,11.6°±5.4°104°±5.3° respectively, there were no differences among 3 groups （ P = 0. 665 ）. Mean values for cup abduction angle of three groups were 43.4°±6.5°,45.3°±6.4°,43.1°±6.7° respectively, and there was no difference among 3 groups （ P = 0.335 ）. Conclusion ： Obesity does not influence the accuracy of cup implantion in total hip replacement.