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Evidence-Based Advances in Improving Hip Stability in Total Hip Arthroplasty
Gerard A Sheridan1, Cillian J Keogh2, Lisa C Howard3
1Department of Orthopaedics, University of Galway, Galway, Ireland.
The Orthopedic Clinics of North America
|November 16, 2025
Summary
Total hip arthroplasty instability rates are now low due to significant advancements. This review details key historical developments that have reduced postoperative prosthetic hip instability over decades.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Total hip arthroplasty (THA) complications, particularly instability, were historically significant.
- Early prosthetic hip designs and surgical techniques contributed to higher instability rates.
Purpose of the Study:
- To review the historical evolution of THA.
- To identify and describe major advancements reducing prosthetic hip instability.
Main Methods:
- Literature review of historical orthopedic and surgical journals.
- Analysis of evidence supporting key innovations in THA.
Main Results:
- Significant improvements in implant design and surgical approaches have drastically reduced THA instability.
- Key advances include improved femoral head size, acetabular component positioning, and surgical dislocation management.
Conclusions:
- The reduction in THA instability is a testament to decades of surgical innovation and evidence-based practice.
- Continued research into implant technology and surgical techniques will further enhance patient outcomes.
