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Evaluation and management of chronic total hip instability
N P Sheth1, C M Melnic2, W G Paprosky3
1University of Pennsylvania, 800 Spruce Street, 8th Floor Preston Building, Philadelphia, PA 19107, USA.
The Bone & Joint Journal
|January 7, 2016
Summary
Total hip arthroplasty instability requires accurate classification of the cause, including component position and wear. Proper classification guides surgeons in selecting the best revision strategy for optimal patient outcomes.
Area of Science:
- Orthopaedic Surgery
- Biomedical Engineering
Background:
- Total hip arthroplasty (THA) is a common procedure with increasing annual rates.
- Instability following THA is a significant complication that necessitates effective management strategies.
Purpose of the Study:
- To emphasize the importance of understanding factors contributing to THA instability.
- To recommend a classification system for THA instability to guide treatment decisions.
Main Methods:
- Review of factors leading to THA instability.
- Development of a classification system based on component position, abductor function, impingement, and polyethylene wear.
Main Results:
- Instability in THA can arise from various factors, including malpositioned components, compromised abductor function, and polyethylene wear.
- A systematic classification approach aids in identifying the primary cause of instability.
Conclusions:
- Accurate classification of THA instability is crucial for successful treatment.
- Tailoring revision strategies based on the classified instability type improves patient outcomes.
