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A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy
Published on: May 1, 2020
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Arthroscopic Outcomes as a Function of Acetabular Coverage From a Large Hip Arthroscopy Study Group
Dean K Matsuda1, Benjamin R Kivlan2, Shane J Nho3
1DISC Sports and Spine Center, Marina del Rey, California, U.S.A..
Summary
Hip arthroscopy outcomes are not affected by lateral acetabular coverage. Patients with borderline dysplasia or pincer femoroacetabular impingement (FAI) show similar successful results after surgery.
Area of Science:
- Orthopedic Surgery
- Hip Arthroscopy
- Femoroacetabular Impingement (FAI)
Background:
- Femoroacetabular impingement (FAI) is a condition characterized by abnormal hip joint anatomy.
- Lateral acetabular coverage, assessed by the lateral center-edge angle, varies among individuals and can be classified as low (borderline dysplasia), normal, or high (pincer FAI).
- The impact of varying lateral acetabular coverage on hip arthroscopy outcomes is not fully understood.
Purpose of the Study:
- To compare the outcomes of hip arthroscopy in patients with low, normal, and high lateral acetabular coverage.
- To evaluate the influence of acetabular coverage on functional improvement and long-term results after hip arthroscopy.
Main Methods:
- Retrospective analysis of prospectively collected data from a multicenter registry.
- Patients were categorized into three groups based on preoperative lateral center-edge angle: borderline dysplasia (≤25°), normal (25.1°-38.9°), and pincer (≥39°).
- International Hip Outcome Tool (iHOT-12) scores were compared preoperatively and at a minimum of 2-year follow-up.
Main Results:
- No significant statistical differences were found in preoperative or postoperative iHOT-12 scores among the three groups based on acetabular coverage.
- All groups demonstrated significant improvement in iHOT-12 scores from preoperation to follow-up (P <.001).
- Acetabular coverage did not significantly affect the magnitude of functional improvement or the incidence of revision or conversion surgery.
Conclusions:
- Lateral acetabular coverage does not appear to influence the outcomes of primary hip arthroscopy.
- Patients with borderline dysplasia or moderate global pincer FAI can achieve successful 2-year minimum outcomes and survivorship following hip arthroscopy.
- These findings suggest that experienced surgeons can effectively manage these hip conditions regardless of acetabular coverage variations.
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