Adhesive capsulitis of the shoulder: Protocol for the adhesive capsulitis biomarker (AdCaB) study

Adhesive capsulitis (AC) is a disabling and poorly understood pathological condition of the shoulder joint. This study will provide much needed information regarding the pathogenesis, diagnosis and staging of AC. It will evaluate clinical outcomes for people undergoing arthroscopic release of AC by comparing this group to people undergoing arthroscopic surgery for shoulder instability.