Shoulder Injection Trial - A comparison of injection of Tenoxicam with Depo-Medrone in shoulders with subacromial impingement syndrome

INTERVENTION: Please note that, as of 27/03/2008, the end date of this trial was updated from 30/09/2004 to 17/07/2006 (date on which the last participant was recruited). Interventions added as of 27/03/2008: The participants were randomly allocated to the following two arms in equal numbers: Arm 1: Subacromial injection of tenoxicam (NSAID) 20 mg single dose Arm 2: Subacromial injection of depo‐medrone (steroid) 40 mg single dose CONDITION: Musculoskeletal Diseases: Shoulder disorders ; Musculoskeletal Diseases ; Shoulder disorders PRIMARY OUTCOME: Primary outcome measures updated as of 27/03/2008:; Constant‐Murley shoulder assessment score at baseline and 6 weeks; ; Primary outcome measures provided at time of registration:; Constant‐Murley Shoulder assessment score and Disabilities of the Arm Shoulder and Hand (DASH) Questionnaire. SECONDARY OUTCOME: Added as of 27/03/2008:; 1. Disabilities of the Arm, Shoulder and Hand (DASH) Questionnaire at baseline and 2, 4 and 6 weeks; 2. Oxford shoulder score at baseline and 2, 4 and 6 weeks INCLUSION CRITERIA: Added as of 27/03/2008: 1. Patients over the age of 18 years 2. Clinical diagnosis of subacromial impingement syndrome 3. Symptoms lasting longer than 3 months