Radial osteotomy for Kienböck's disease evaluated by magnetic resonance imaging. 24 cases followed for 1-3 years.
24 patients with Kienböck's disease were followed with magnetic resonance imaging (MRI) for 1-3 years. 9 patients were treated with radial shortening, 10 with radial wedge osteotomy and 5 patients were treated non-operatively. Signal intensity of the lunate on T1-weighted or T2-weighted images increased postoperatively in all operated on patients, and normal or near-normal signal intensity was observed in 9 patients on T1-weighted images and in 15 patients on T2-weighted images postoperatively. Signal intensity did not increase in any patient treated non-operatively. The postoperative increase in signal intensity on MRI following radial shortening and radial wedge osteotomy presumably is due to revascularization of the lunate.
Nagoya University School of Medicine, Department of Orthopedics, Japan.
R
R
Nakamura
K
K
Watanabe
K
K
Tsunoda
T
T
Miura
D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010007:Osteochondritis / Q000175:diagnosis / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D011184:Postoperative Period