Prognostic Factors of Arthroscopic Extensor Carpi Radialis Brevis Release for Lateral Epicondylitis

2015 
Purpose The purpose of this study was to analyze factors affecting the treatment outcomes and prognoses of arthroscopic debridement for refractory lateral epicondylitis. Methods We included 45 patients who had undergone arthroscopic extensor carpi radialis brevis release for chronic refractory lateral epicondylitis between October 2008 and December 2012. Demographic data, magnetic resonance imaging studies, and arthroscopic findings were examined and analyzed. Results The mean age of the enrolled patients (23 men and 22 women) was 45.9 ± 7.8 years, and the mean follow-up duration was 26.9 ± 9.0 months. All the patients showed significant clinical improvement on all parameters assessed using the visual analog scale (6.9 preoperatively to 0.9 postoperatively), the Upper Extremity Functional Scale (34.8 to 66.7), and the Mayo Elbow Score (63.5 to 92.3) ( P P  = .016). Conclusions Overall, clinical outcome scores showed improvement after arthroscopic extensor carpi radialis brevis release for refractory lateral epicondylitis. However, preoperative tendon status and sex were associated with dissatisfaction and poor postoperative outcomes after the arthroscopic release procedure. Level of Evidence Level IV, therapeutic case series.
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