78 patients with idiopathic frozen shoulder were randomized to undergo treatment via manipulation under anaesthesia (MUA) in conjunction with a steroid injection technique or an arthroscopic release method, in order to determine which approach provided better functional results. After evaluations over an average follow-up period of 14.6 months, results indicated that Oxford Shoulder and DASH scores were significantly better in patients who underwent MUA and steroid injections. This complete article has since been withdrawn by the publisher following this conference.