Barbier Olivier, Skalli Waffa, Mainard Didier
Acta Orthop Belg. 2017 Sep;83(3):360-366.
Changes in pelvic orientation after THA could alter the relationship between the femoral stem and the acetabular component and may be responsible of dislocation and implant degeneration. EOS™ technology allows three-dimensional analysis of the pelvis in functional position with low irradiation. The purpose of the study was to evaluate changes in pelvic orientation after THA in standing position with EOS™. In a prospective study, EOS™ was performed in standing position preoperatively and 3 months after computer assisted THA for primary hip osteoarthritis. Differences between pre- and postoperative pelvic parameters values were analyzed. 40 patients were included. Changes greater than 5° was noted in 12,5% of cases for pelvic incidence, 35% of cases for sacral slope and in 22,5% of cases for pelvic version. In conclusion, pelvic parameters could be modified after THA.
全髋关节置换术后骨盆方向的改变可能会改变股骨柄与髋臼组件之间的关系，并可能导致脱位和植入物退变。EOS™技术能够在低辐射条件下对处于功能位的骨盆进行三维分析。本研究的目的是使用EOS™评估全髋关节置换术后站立位时骨盆方向的变化。在一项前瞻性研究中，对40例因原发性髋骨关节炎接受计算机辅助全髋关节置换术的患者，在术前站立位以及术后3个月进行EOS™检查。分析术前和术后骨盆参数值的差异。结果发现，骨盆倾斜角有12.5%的病例变化大于5°，骶骨坡度有35%的病例变化大于5°，骨盆旋转角有22.5%的病例变化大于5°。总之，全髋关节置换术后骨盆参数可能会发生改变。
