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More than half of patients with glenohumeral instability had cartilage lesions at arthroscopy
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Results from this study revealed 64% of patients who underwent diagnostic MRI and shoulder arthroscopy for glenohumeral instability had articular cartilage lesions at the time of arthroscopy and linked the number of previous dislocations and dislocations treated with closed reduction to an increased risk for glenoid injury.
Researchers reviewed records of 83 patients (87 shoulders) with a mean age 26.1 years. Patients had a mean follow-up of 36 months, and most were men. Investigators recorded arthroscopic findings including lesion location and Outerbridge grade. At the mid-term follow-up, outcomes of 61 shoulders were assessed with the American Shoulder and Elbow Surgeons (ASES) Standardized Shoulder Assessment Form. Outcomes were compared between patients with articular cartilage injuries and those without lesions.
Arthroscopic examinations revealed articular cartilage injuries in 56 shoulders. Articular cartilage injuries to the glenoid were more likely found in patients with a documented history of dislocation compared to patients with subluxation. Higher-grade lesions in the glenohumeral joint were seen more often in patients with multiple dislocations.
The mean ASES score overall was 89.6, with mean scores of 88.1 in patients without articular lesions and 90.4 for patients with articular lesions. Lower ASES scores were not correlated with higher-grade lesions, according to researchers.‒ by Monica Jaramillo
Disclosure: Krych reports that his institution receives consulting fees from Arthrex Inc.
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