Journal of Ultrasound in Medicine, Vol 19, Issue 6 377-378, Copyright © 2000 by American Institute of Ultrasound in Medicine
Sonographic differences in the appearance of acute and chronic full-thickness rotator cuff tears
S. A. Teefey, W. D. Middleton, G. S. Bauer, C. F. Hildebolt and K. Yamaguchi
Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
This study was undertaken to identify differences in the sonographic
appearance of acute and chronic full-thickness rotator cuff tears. The
ultrasonograms of 24 patients with an acute rotator cuff tear and 20 with a
chronic tear were reviewed for tear size (width), location, and the
presence and distribution of fluid. Among these 24 patients, 75% with a
midsubstance tear location had an acute tear; 64% of patients with joint or
bursal fluid had an acute tear; 80% of patients with a nonvisualized
rotator cuff due to a massive tear had a chronic tear; and 73% of patients
with no sonographic evidence of bursal or joint fluid had a chronic tear.
In conclusion, a midsubstance location and the presence of joint or bursal
fluid were more commonly associated with an acute tear. A nonvisualized
cuff and the absence of joint and bursal fluid were more commonly observed
with a chronic tear.