Batailler Cécile, Fary Camdon, Verdier Régis, Aslanian Thierry, Caton Jacques, Lustig Sebastien
Albert Trillat Center, Lyon, France.
Int Orthop. 2017 Mar;41(3):645-659. doi: 10.1007/s00264-016-3377-y. Epub 2016 Dec 21.
Instability following total hip arthroplasty remains a common and disabling complication. The dual mobility cup (DMC) allows a reduction in the dislocation rate. An increasing number of studies have been undertaken to better understand DMC long term outcomes and complications. The goal of this systematic review was to clarify its different uses and outcomes according to the indications.
A comprehensive literature review was performed using the keywords 'dual mobility' and 'tripolar cup' with no limit regarding the year of publication. One hundred seventy six publications were identified.
Current literature shows that "contemporary" dual mobility cup are a significant indication to manage instability following primary and revision hip arthroplasty. Survivorship at midterm is comparable to other articulations for primary THA, but is more difficult to evaluate in revision. Intra-prosthetic dislocation, wear, and loosening are now uncommon with new generations of DMC.
Compared to previous generations of DMC, the current "contemporary" DMC presents a significant improvement. Current literature reveals a tendency to increase the indications but further studies with long term follow up remain important to consolidate these findings.
全髋关节置换术后的不稳定仍然是一种常见且致残的并发症。双动杯（DMC）可降低脱位率。为了更好地了解DMC的长期疗效和并发症，已开展了越来越多的研究。本系统评价的目的是根据适应症阐明其不同用途和疗效。
使用关键词“双动”和“三极杯”进行全面的文献综述，对发表年份不设限制。共识别出176篇出版物。
当前文献表明，“当代”双动杯是处理初次和翻修髋关节置换术后不稳定的重要适应症。中期生存率与初次全髋关节置换术的其他关节相当，但在翻修术中更难评估。新一代DMC假体内部脱位、磨损和松动现已不常见。
与前代DMC相比，当前的“当代”DMC有显著改进。当前文献显示有增加适应症的趋势，但长期随访的进一步研究对于巩固这些发现仍然很重要。
