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Clinical Orthopaedics and Related Research®

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01-02-2013 | Clinical Research

Intraoperative Cartilage Degeneration Predicts Outcome 12 Months After Hip Arthroscopy

Authors: Thorlene Egerton, PhD, Rana S. Hinman, PhD, Amir Takla, MPhy, Kim L. Bennell, PhD, John O’Donnell, FRACS

Published in: Clinical Orthopaedics and Related Research® | Issue 2/2013

Abstract

Background

When considering arthroscopic surgery for treatment of hip pain, it is important to understand the influence of joint degeneration on the likelihood of success. Previous research has shown poorer outcomes among patients with osteoarthritis but new arthroscopic techniques including femoroacetabular impingement correction and microfracture may lead to better arthroscopic outcomes.

Questions/Purposes

We investigated the effect of intraarthroscopic articular and rim cartilage degeneration on the outcome after hip arthroscopy using contemporary techniques.

Methods

The modified Harris hip score (MHHS) and nonarthritic hip score (NAHS) were completed preoperatively and 12 months postoperatively by 560 patients undergoing hip arthroscopy after March 2007. Change in these scores was compared between patients with and without acetabular or femoral articular cartilage degeneration and between patients with and without rim cartilage degeneration. Correlation and regression analyses were used to predict the change in outcome scores based on the severity of cartilage degeneration.

Results

Hips without degeneration had greater improvement in the outcome scores. The presence of cartilage degeneration showed negative correlations with change in outcomes. The best model to explain change in MHHS included preoperative score, articular cartilage degeneration grade, and rim lesion grade (adjusted R² = 0.24).

Conclusions

Our data support previous findings regarding the negative influence of cartilage degeneration on improvement after hip arthroscopy. Nevertheless, many patients with cartilage degeneration still improved and the severity of degeneration accounts for little of the resulting variance in change. Future studies must determine the clinical importance of the improvements gained by patients with cartilage degeneration and identify other predictors of outcome.

Level of Evidence

Level III, prognostic study. See Instructions for Authors for a complete description of levels of evidence.

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Title: Intraoperative Cartilage Degeneration Predicts Outcome 12 Months After Hip Arthroscopy
Authors: Thorlene Egerton, PhD
Rana S. Hinman, PhD
Amir Takla, MPhy
Kim L. Bennell, PhD
John O’Donnell, FRACS
Publication date: 01-02-2013
Publisher: Springer-Verlag
Published in: Clinical Orthopaedics and Related Research® / Issue 2/2013
Print ISSN: 0009-921X
Electronic ISSN: 1528-1132
DOI: https://doi.org/10.1007/s11999-012-2594-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Intraoperative Cartilage Degeneration Predicts Outcome 12 Months After Hip Arthroscopy

Abstract

Background

Questions/Purposes

Methods

Results

Conclusions

Level of Evidence

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Questions/Purposes

Methods

Results

Conclusions

Level of Evidence

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