Es. Sijbrandij et al., Posttraumatic subchondral bone contusions and fractures of the talotibial joint: Occurrence of "kissing" lesions, AM J ROENTG, 175(6), 2000, pp. 1707-1710
Citations number
15
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment
OBJECTIVE. The objective of this study was to determine the presence and lo
cation of subchondral bone contusions, fractures, and "kissing" lesions of
the talotibial joint after a sprain of the ankle shown on MR imaging.
MATERIALS AND METHODS. We retrospectively reviewed the images of all consec
utive patients who underwent MR imaging of the ankle after acute or recurre
nt sprain occurring between January and December 1997. The number and locat
ion of subchondral contusions or fractures revealed on MR imaging were reco
rded, and a comparison was made with the radiographs obtained for each pati
ent.
RESULTS. Of the 146 ankles, 42 osteochondral lesions were revealed on MR im
aging in 26 ankles (18%) involving 23 patients. Twenty-three lesions were l
ocalized in the dome of the talus and 19, in the tibiofibular plafond. In 1
6 (11%) of the 146 ankles, the lesions were present in the opposing bones o
f the joint ("kissing" lesions). Only six of the 12 talar fractures and non
e of the tibial fractures involving the 26 ankles were seen on conventional
radiography.
CONCLUSION. Subchondral lesions in the talus and tibia are relatively commo
n after ankle trauma, occurring in 18% of patients in our series. Kissing l
esions were present in more than half of the lesions in these patients.