Rupture of the posterior tibial tendon: CT and surgical findings.
Computed tomography (CT) was performed in 42 patients with 49 clinically suspected tears of the posterior tibial tendon. Twenty-eight of the 49 suspected tears were subsequently surgically explored and repaired. Three patterns of tendon abnormalities were recognized on CT scans: type I-intact, hypertrophied, heterogeneous tendon; type II-attenuated tendon; and type III-absence of a portion of a tendon. Types I and II correlated with partial rupture seen during surgery, and type III correlated with complete rupture of the tendon. CT findings were accurate in 96% of the patients who underwent surgery. In four cases (14%), tendon rupture was seen on CT scans, but the extent of the injury was underestimated and the rupture was misclassified. Reactive periostitis of the distal tibia was seen in 71% of diseased tendons and may represent an important factor in the diagnosis of tendon rupture.
Rosenberg
Z S
ZS
Department of Radiology, Hospital for Joint Diseases/Orthopedic Institute, New York, NY 10003.
Jahss
M H
MH
Noto
A M
AM
Shereff
M J
MJ
Cheung
Y
Y
Frey
C C
CC
Norman
A
A
D000328:Adult; D000368:Aged; D000843:Ankle Joint / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012421:Rupture; D013708:Tendon Injuries / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed