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March 6, 20260 citationsOpen Access

Long-Term Survivorship of Dual-Mobility Components in Primary Total Hip Arthroplasty

Total hip arthroplasty with dual-mobility components : a retrospective series of 25,545 primary cases.

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Authors

PBPierre-Alban BouchéCBChristian BrandSPSophie Putman

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Overview

Registry study evaluates survivorship of dual-mobility components in hip surgery, suggesting effectiveness despite some risks.

Key Points

  • Evaluate long-term survivorship of dual-mobility components (DMCs) versus conventional components (CCs) in primary total hip arthroplasty (THA).
  • Analyzed data from 58,314 primary THAs from SOFCOT/RENACOT registry.
  • Focused on 25,545 DMCs (46% of cases).
  • Utilized Kaplan-Meier survival curves and Cox proportional hazards models.
  • Adjusted for age, sex, primary diagnosis, and fixation method.
  • DMC group had 284 revisions (1.1%) recorded.
  • DMCs showed no significant increase in revision risk compared to CCs (hazard ratio 0.83).
  • Periprosthetic fractures were the leading cause of revision in the DMC group (34.5%).
  • Lower combined proportion of revisions due to dislocation or fracture in DMC group (39.4%) versus CC group (51.5%).

Cite This Study

Bouché et al. (2026) studied this question.

synapsesocial.com/papers/69aa7066531e4c4a9ff5a29ahttps://doi.org/10.48620/95943
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