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Restless Legs Syndrome Is Associated With Higher Rates of Dislocation After Total Hip Arthroplasty
Adam Nguyen1, Patrick J Tansey1, Alexis B Sandler2
1Department of Orthopaedic Surgery and Rehabilitation, The University of Texas Medical Branch, Galveston, Texas.
Restless Legs Syndrome (RLS) increases risks for dislocation and ED visits after total hip arthroplasty (THA), but lowers readmission rates. RLS patients also face higher risks of aseptic loosening and infection long-term.
Area of Science:
- Orthopedic Surgery
- Neurology
- Health Services Research
Background:
- Restless Legs Syndrome (RLS) is a neurological condition causing leg movements.
- RLS may impact adherence to postoperative hip precautions.
- The effect of RLS on total hip arthroplasty (THA) outcomes is unknown.
Purpose of the Study:
- To investigate the influence of RLS on THA outcomes.
- To compare complication rates between RLS patients and a matched control group.
Main Methods:
- Retrospective analysis of a national database (2009-2022).
- Identified patients with RLS undergoing THA.
- Propensity score matching created RLS and control cohorts (3,204 patients each).
- Calculated absolute risks and odds ratios (ORs) for postoperative complications.
Main Results:
- RLS patients had higher risks of dislocation (OR: 1.64) and ED utilization (OR: 1.19) within 90 days.
- RLS patients showed a decreased risk of readmission (OR: 0.63) within 90 days.
- At 2 years, RLS patients had increased risks of aseptic loosening (OR: 1.37) and periprosthetic joint infection (OR: 1.42).
Conclusions:
- RLS is associated with increased risks of periprosthetic dislocation and ED visits post-THA.
- RLS is linked to a decreased 90-day readmission rate.
- Long-term risks of aseptic loosening and periprosthetic joint infection are elevated in RLS patients.
- Findings suggest targeted interventions can mitigate RLS-related complications.
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