To arthroscopically treat "dialysis shoulder," severe shoulder pain in pati
ents on long-term hemodialysis. This pain occurs only at rest such as durin
g hemodialysis or while sleeping and is temporarily alleviated by assuming
the sitting position or moving the shoulder joint. Limitations in ran-c of
motion and pain with overhead activity or the arm in the forward flexed pos
ition are not the patient's chief complaints. Although frozen shoulder and
impingement syndrome may be observed as complications, pain at rest is the
most characteristic. Type of Study: Clinical research on arthroscopic debri
dernent to treat dialysis shoulder. Methods: We performed arthroscopic debr
idement of 36 dialysis shoulders in 29 patients. Only complete debridement
in the glenohumeral joint and subacromial bursa was performed, without inva
sion to the bone and ligaments. Results: The pain improved in 34 shoulders
in 27 patients (94%) a mean of 29.8 months after surgery, showing satisfact
ory results. In this group, the mean Japan Orthopaedic Surgery Association
shoulder score (maximum 100 points) was 66.4 points before surgery but incr
eased to 86.6 points postoperatively, statistically significant by 2-group
t test. Conclusions: We decided before beginning the study that no postoper
ative rehabilitation would be necessary. There were no complications and no
need for further surgery, with all but 2 of the patients being satisfied w
ith their postoperative condition.