American Journal of Roentgenology, Vol 168, 925-928, Copyright © 1997 by American Roentgen Ray Society

ARTICLES

MR imaging of the shoulder after surgery

TH Magee, ES Gaenslen, R Seitz, GA Hinson and LH Wetzel
Department of Radiology, Menorah Medical Park, Overland Park, KS 66209, USA.

OBJECTIVE: This study examines the usefulness of MR imaging for assessing patients who have undergone shoulder surgery and have persistent postoperative complaints. SUBJECTS AND METHODS: Fifty patients with persistent postoperative shoulder pain underwent MR imaging before second-look arthroscopy. The MR imaging findings were correlated with findings at surgery. RESULTS: With surgical findings as the gold standard, we found MR imaging to be 100% sensitive and 87% specific in revealing full- or partial-thickness supraspinatus tendon tears. MR imaging was 84% sensitive and 87% specific in revealing residual impingement. The positive predictive value of MR imaging for diagnosing partial-thickness tears of the supraspinatus tendon was 56%. With this exception, the MR imaging findings correlated well with findings at arthroscopic second-look surgery. CONCLUSION: In patients who have undergone shoulder surgery, MR imaging is useful in pinpointing disorders and in planning for second-look surgery in patients with persistent postoperative complaints.
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