Sixty-two patients with pelvic fractures were evaluated by conventiona
l radiography and CT. A correct pathoanatomic classification of the fr
actures was most often obtained by conventional radiography, but CT ad
ded information regarding acetabular fractures and involvement of the
posterior part of the pelvic ring. Besides, CT was essential in the de
tection of intraarticular fragments and lesions of the femoral head. C
lassification of pelvic ring fractures by the pattern of traumatic for
ces nas easily obtainable by conventional radiography, but often diffi
cult to achieve by CT.