• BACKGROUND
    • This study clarified the long-term results of conservative treatment of rotator cuff tears.
  • MATERIALS AND METHODS
    • This study focused on 103 shoulders diagnosed with rotator cuff tears by magnetic resonance imaging or arthrography at our institution from 1996 to 1999. Sixty-five shoulders were followed up by telephone survey and 43 of these shoulders were evaluated; 11 shoulders were excluded because the patient had died, 10 shoulders because of severe dementia, and 1 shoulder that had undergone trauma. The mean patient age for these 43 shoulders at the time of diagnosis was 62 years, and the mean follow-up period was 13 years. The pain score (30 points) and the activities-of-daily-life score (10 points) of the Japanese Orthopaedic Association shoulder scoring system were determined.
  • RESULTS
    • The mean pain score was 25.4 points, and the proportion of patients with no pain or with only slight pain was 88%. The mean score for activities of daily life was 9.4 points, and the proportion of patients with no disturbance in daily life was 72%. The patients with fewer than 20 points out of the possible 40 points (30 points for pain score plus 10 points for activities-of-daily-life score) were significantly younger than the other patients.
  • CONCLUSIONS
    • In cases of rotator cuff tears treated conservatively, at 13 years after diagnosis, about 90% of patients had no or only slight pain and about 70% had no disturbance in activities of daily life. However, the younger patients tended to have more significant pain or disorder in daily life more than 10 years after diagnosis.