Mortality Rate and Mid-Term Outcomes of Total Hip Arthroplasty Using Dual Mobility Cups for the Treatment of Femoral Neck Fractures in a Middle Eastern Population

The dual mobility cups (DMCs) were shown to reduce dislocation rate following total hip arthroplasty for any etiology, including femoral neck fractures. No reported studies evaluating DMC results for femoral neck fracture in a Middle Eastern population were found in the literature. This study aims t...

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Bibliographic Details
Published in:The Journal of arthroplasty 2019-02, Vol.34 (2), p.333-337
Main Authors: Assi, Chahine C., Barakat, Hanane B., Caton, Jacques H., Najjar, Elie N., Samaha, Camille T., Yammine, Kaissar F.
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip - instrumentation
Arthroplasty, Replacement, Hip - mortality
dual mobility cups
Female
Femoral Neck Fractures - surgery
hip dislocation
Hip Prosthesis
hip revision surgery
Humans
Joint Dislocations
Lebanon - epidemiology
Male
Middle Aged
mortality
Prosthesis Design
Prosthesis Failure
Range of Motion, Articular
Reoperation
Retrospective Studies
total hip arthroplasty
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Summary:The dual mobility cups (DMCs) were shown to reduce dislocation rate following total hip arthroplasty for any etiology, including femoral neck fractures. No reported studies evaluating DMC results for femoral neck fracture in a Middle Eastern population were found in the literature. This study aims to look for mortality rate, clinical, and functional outcomes in a population having specific rituals involving extreme hip positions as part of their daily activities. Of an initial sample of 174 patients (177 operated hips), 18 (10.3%) patients (20 hips) died after a mean of 39.6 ± 13.8 months (ranging from 2 to 49 months) with only 3 (1.7%) during the first post-operative year. Twelve patients (13 hips) were lost to follow-up and 19 patients (19 hips) had their radiological data incomplete. In the final sample of 125 patients (125 hips), no dislocation, aseptic loosening, or infection was encountered. The mean modified Hip Harris Score was of 94.8 ± 8.4. The mean modified Hip Harris Score of 40 patients who used to practice regularly oriental sitting position or prayers was 94.1 ± 3.1. After surgery, 36 of these 40 patients (90%) described their hip as “a forgotten hip.” Multivariate analyses found correlation only between mortality and cardiovascular co-morbidities. DMC implants showed excellent clinical and functional results. The majority of patients having rituals and customs involving extreme hip positions were able to resume their daily activities. The observed low mortality rate should incite future research to investigate its correlation with the use of DMCs.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2018.10.030