1. Dislocations after use of dual-mobility cups in cementless primary total hip arthroplasty: prospective multicentre series.
- Author
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Hwang, Ji-hyo, Kim, Sang-Min, Oh, Kwang-Jun, and Kim, Yeesuk
- Subjects
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TOTAL hip replacement , *KNEE dislocation , *FEMUR neck , *BONE fractures , *PATIENTS , *HIP surgery , *ARTIFICIAL joints , *HIP joint dislocation , *HIP joint injuries , *RANGE of motion of joints , *LONGITUDINAL method , *PROSTHETICS , *COMPLICATIONS of prosthesis , *SURGICAL complications , *DISEASE incidence , *DISEASE complications , *EQUIPMENT & supplies - Abstract
Background: The purpose of this study was to investigate the incidence of dislocation and specific complications of the dual-mobility cup.Methods: 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.Results: 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.Conclusion: 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. [ABSTRACT FROM AUTHOR]- Published
- 2018
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