Risk factors associated with development of pelvic canal stenosis secondary to sacroiliac separation: 84 cases (1985-1995).

摘要

Medical records and radiographs of 46 dogs, admitted to the University of Illinois Small Animal Teaching Hospital between 1994 and 1995, with conditions unrelated to pelvic fracture (control group) and 84 dogs with sacroiliac separation (case group)in which radiographs were obtained before surgery, after surgery, or after fracture healing were reviewed. Discriminant analysis was used to determine a normal pelvic canal diameter ratio (ratio of the distances between the medial aspects of the acetabulum and the caudal aspects of the sacral joint surfaces). An ANOVA and Dunnett's two-sided test were used to determine factors associated with pelvic canal stenosis. Pelvic canal diameter ratio determined from control-group dogs was >=1.1. Pelvic canal diameter ratios were significantly less for case-group dogs on radiographs obtained before surgery and after fracture healing than for control-group dogs, regardless of fracture type or treatment, except for dogs with ilic fractures treated conservatively.Pelvic canal diameter ratios did not differ for case-group dogs on radiographs obtained after surgery from those for control-group dogs, except when ilic fractures were surgically reduced. None of the dogs had clinical signs associated with pelvic canalstenosis.