Hwang Ji-Hyo, Kim Sang-Min, Oh Kwang-Jun, Kim Yeesuk
Department of Orthopedic Surgery, Gangnam Sacred Heart Hospital, Hallym University School of Medicine, Seoul, South Korea.
Department of Orthopedic Surgery, Seoul Medical Center, Seoul, South Korea.
Int Orthop. 2018 Apr;42(4):761-767. doi: 10.1007/s00264-017-3660-6. Epub 2017 Oct 7.
The purpose of this study was to investigate the incidence of dislocation and specific complications of the dual-mobility cup.
The arthroplasties involved 167 hips in 165 patients; 51 hips (30.5%) were in men and 116 (69.4%) were in women. The active articulation E1® dual-mobility cup (Biomet, Warsaw, IN, USA) was used, and the surgical approach was posterolateral in 120 hips and anterolateral in 47 hips.
Four (2.3%) dislocations were observed. Mean time of dislocation was 30.5 days post-operatively. Three incomplete reductions occurred during closed reduction. When comparing parameters between dislocation and no-dislocation groups, there were no differences in patient and surgical parameters. However, all dislocations occurred in patients with femoral neck fractures and in the posterolateral approach group.
The incidence of dislocation in total hip arthroplasty (THA) using a dual-mobility cup was acceptable, and cup diameter of the dislocation group was substantially larger than that of no-dislocation group. Based on clinical outcomes of our study, we conclude that the dual-mobility cup is a reliable option in THA, and further studies are necessary.
本研究旨在调查双动髋臼杯脱位及特定并发症的发生率。
本关节置换术涉及165例患者的167髋；男性51髋（30.5%），女性116髋（69.4%）。采用了主动关节E1®双动髋臼杯（美国印第安纳州华沙市的Biomet公司生产），手术入路为后外侧120髋，前外侧47髋。
观察到4例（2.3%）脱位。脱位的平均时间为术后30.5天。闭合复位过程中发生3例不完全复位。比较脱位组和未脱位组的参数时，患者和手术参数无差异。然而，所有脱位均发生在股骨颈骨折患者及后外侧入路组。
使用双动髋臼杯的全髋关节置换术（THA）脱位发生率可接受，脱位组髋臼杯直径明显大于未脱位组。基于我们的研究临床结果，我们得出结论，双动髋臼杯是THA中一种可靠的选择，且有必要进行进一步研究。
