High prevalence of persistent pain 6 months after arthroscopic subacromial decompression and/or acromioclavicular joint resection.

The prevalence of persistent pain 6 months after ASD and/or AC resection was 35.6% (95% CI 26.1-45.8%) and the proportion of patients with shoulder pathology was 9.9%. An association between ongoing insurance case, unemployment, general tendency to worry (t-STAI), and unexplained persistent pain 6 months after surgery was found.