Is routine gleno-humeral exploration a risk factor for adhesive capsulitis after arthroscopic removal of rotator cuff calcifications? A comparative retrospective study in 340 cases.

Background: Arthroscopic surgery has earned its place as the reference standard treatment for rotator cuff calcific tendinopathy refractory to conservative medical treatment. Adhesive capsulitis of the shoulder is the most common complication (12%). Standard practice involves routine gleno-humeral exploration before calcification removal. The objective of this study was to identify risk factors for adhesive capsulitis.

Hypothesis: The development of adhesive capsulitis is associated with gleno-humeral exploration.

Methods: We conducted a multicentre, multi-surgeon, retrospective cohort study of 340 consecutive patients who underwent arthroscopic removal of rotator cuff calcifications between 1 January 2012 and 1 January 2018. We collected epidemiological data (age, sex, work-related physical activity), the history of previous treatments (local injections, needling), the type and location of the calcifications as assessed radiologically, the clinical findings (Constant score before and 6 months after surgery, diagnosis of adhesive capsulitis defined as shoulder pain with motion range limitation in all directions), and the surgical details (type of anaesthesia, gleno-humeral exploration).

Results: Of the 340 patients, 251 underwent routine gleno-humeral exploration and 89 did not. Adhesive capsulitis developed in 40 (12%) patients. By multivariate analysis, gleno-humeral exploration was an independent risk factor for adhesive capsulitis (p=0.022; odds ratio, 5.60). Of the 251 gleno-humeral explorations, 8% identified concomitant lesions and only 4% led to a curative procedure.

Conclusion: Given our results and the data in the literature, we believe that routine gleno-humeral exploration during the arthroscopic treatment of rotator cuff calcific tendinopathy is inadvisable.

Level Of Evidence: III; case-control study.