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Updated: Nov 12, 2025
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The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
Published on: August 4, 2022
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Dual-mobility bearings in complex revision hip arthroplasty
Christopher P Wakeling1, Nemandra A Sandiford2, Rafia Ghani2
1St. Richard's Hospital, Western Sussex Hospitals NHS Foundation Trust, Chichester, UK.
Summary
Dual-mobility (DM) components are a viable option for revision total hip arthroplasty (rTHA), particularly in complex cases. While early dislocations can occur, the instability rate remains acceptable for this high-risk patient group.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Revision total hip arthroplasty (rTHA) presents a higher risk of dislocation.
- Dual-mobility (DM) bearings offer enhanced stability and range of motion, mitigating risks associated with constrained devices.
Purpose of the Study:
- To evaluate the efficacy and safety of dual-mobility components in complex revision total hip arthroplasty.
- To assess the dislocation rate and overall stability in rTHA patients treated with DM bearings.
Main Methods:
- A retrospective review of rTHA cases utilizing DM bearings since 2013.
- Inclusion criteria involved extensive bone/soft tissue loss or need for complex reconstruction and a minimum 2-month follow-up.
- Analysis of patient demographics, surgical procedures, and postoperative outcomes, including dislocations and re-operations.
Main Results:
- 52 complex rTHA cases were analyzed, with a median of 2 prior operations and a mean follow-up of 14 months.
- 15.4% of patients experienced early postoperative dislocations, with 5.8% requiring re-revision.
- No intraprosthetic dislocations were reported, indicating component integrity.
Conclusions:
- Dual-mobility components are a suitable choice for complex revision total hip arthroplasty.
- Despite potential for early dislocations, the instability rate is deemed acceptable in this high-risk cohort.
- DM bearings provide a valuable solution for improving stability in challenging rTHA cases.
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