106 patients with adhesive capsulitis were randomized to one of three groups to determine which mode of conservative therapy - corticosteroid injections with distension, corticosteroid injections only, or treatment-as-usual (verbal education, use of other conservative therapy) - was associated with the greatest improvement in shoulder pain, function, and range of motion on the short-term (4 and 8 weeks) and long-term (12 months). Results demonstrated that patients in both corticosteroid injection intervention groups had significant improvements in pain, function, abduction, internal rotation, and external rotation when compared to the usual treatment group when assessed at 4 and 8 weeks. Long-term improvements in any outcome measure (12 months) between all groups and efficacy between the two intervention groups were comparable when evaluated.