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Updated: Mar 27, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
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.
Abstract:
Given the increasing number of total hip arthroplasty procedures being performed annually, it is imperative that orthopaedic surgeons understand factors responsible for instability. In order to treat this potentially complex problem, we recommend correctly classifying the type of instability present based on component position, abductor function, impingement, and polyethylene wear. Correct classification allows the treating surgeon to choose the appropriate revision option that ultimately will allow for the best potential outcome.

