Department of Orthopedics, Lund University Hospital, Getingevagen 4, Lund, Sweden.
BMC Musculoskelet Disord. 2010 Aug 6;11:175. doi: 10.1186/1471-2474-11-175.
Hip dislocation after arthroplasty for femoral neck fractures remains a serious complication. The aim of our study was to investigate the dislocation rate in acute femoral neck fracture patients operated with a posterior approach with cemented conventional or dual articulation acetabular components.
We compared the dislocation rate in 56 consecutive patients operated with conventional (single mobility) cemented acetabular components to that in 42 consecutive patients operated with dual articulation acetabular components. All the patients were operated via posterior approach and were followed up to one year postoperatively.
There were 8 dislocations in the 56 patients having conventional components as compared to no dislocations in those 42 having dual articulation components (p = 0.01). The groups were similar with respect to age and gender distribution.
We conclude that the use of a cemented dual articulation acetabular component significantly reduces the dislocation rates in femoral neck fracture patients operated via posterior approach.
髋关节置换术后脱位仍然是股骨颈骨折的严重并发症。我们的研究旨在探讨后路固定的传统或双关节髋臼假体治疗急性股骨颈骨折患者的脱位率。
我们比较了 56 例连续后路固定的传统(单活动度)水泥髋臼假体患者和 42 例连续后路固定的双关节髋臼假体患者的脱位率。所有患者均行后路手术,术后随访 1 年。
56 例使用传统假体的患者中有 8 例脱位,而 42 例使用双关节假体的患者中无一例脱位(p = 0.01)。两组在年龄和性别分布方面相似。
我们的结论是,在经后路手术治疗股骨颈骨折的患者中,使用水泥固定的双关节髋臼假体可显著降低脱位率。