Abstract
Use of shoulder manipulation in the treatment of frozen shoulder (FS) remains controversial. One of the purported risks associated with the procedure is the development of a rotator cuff tear. However the incidence of iatrogenic rotator cuff tears has not been reported. The purpose of the study was to assess the effect of manipulation of the shoulder on the integrity of the rotator cuff.
In a prospective study 20 consecutive patients (21 shoulders) with FS underwent manipulation of the shoulder under anaesthesia (MUA). The average duration of symptoms was 7.3 months (4–18 months). Patients were assessed pre and post manipulation using the Constant score. An ultrasound scan of the rotator cuff was performed before and at 3 weeks after manipulation.
In all patients, pre and post manipulation ultrasound scans showed the rotator cuff to be intact. At 12 weeks after manipulation all patients indicated that they had none or only occasional pain. The mean improvement in motion was 83 degrees (range, 20 – 100°) for flexion, 95 degrees (range, 20 – 120°) for abduction, 58 degrees (range, 0 – 80°) for external rotation and 3 levels of internal rotation (range 3–5 levels). These gains in motion were all significant (p < 0.01). No fractures, dislocations or nerve palsies were observed.
In conclusion manipulation under anaesthesia for treatment of frozen shoulder resulted in significant improvements in shoulder function and pain relief as early as 3 weeks after surgery and was not associated with rotator cuff tears. When performed carefully this procedure is safe and leads to early improvements in pain relief, range of movement and shoulder function.
These abstracts were prepared by Mr Cormac Kelly. Correspondence should be addressed to him c/o British Orthopaedic Association, Royal College of Surgeons, 35-43 Lincoln’s Inn Fields, London WC2A 3PN.
