Skip to main content
padlock icon - secure page this page is secure

Canine Sacroiliac Luxation: Anatomic Study of Dorsoventral Articular Surface Angulation and Safe Corridor for Placement of Screws Used for Lag Fixation

Buy Article:

$52.00 + tax (Refund Policy)

Objective

To define a safe corridor in the dorsoventral plane to facilitate placement of screws inserted in lag fashion within the sacral body for fixation of sacroiliac fracture–luxation injuries in dogs. Study Design

Anatomic study. Sample Population

Cadaveric canine sacra. Methods

Canine sacra (n=45) were used for a radiographic study to define a safe corridor in the dorsoventral plane for placement of screws inserted in lag fashion for fixation of sacroiliac luxation in the dog. The defined safe corridor allowed drilling to a depth of 65% of the sacral width to ensure screw purchase of ≥60%. Effects of positioning and measurement techniques were evaluated. Results

Eighty-seven safe corridors were measured. The mean articular surface was 100±4.52° from horizontal. Mean maximum, optimum, and minimum safe corridor drill angles were 111± 4.57°, 100±4.70°, and 89±5.17°, respectively, from the articular surface. Predicted surgeon error of ±4° was used to define the safe corridor for use clinically. Conclusions

In 91% of sacra, a drill angle of 100±4° would remain ventral to the vertebral canal. Twelve sacra (14%) were at risk of penetration of the pelvic canal. A drill angle of 97±4° avoids penetration of the vertebral canal in all sacra measured but risks ventral exit from the body in 30% of sacra studied. Clinical Relevance

A drill angle of 97° from the articular surface is recommended for insertion of screws for lag fixation of canine sacroiliac luxation.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: dog; sacroiliac luxation; sacrum; screw angulation

Document Type: Research Article

Affiliations: From the Queen's Veterinary School Hospital, Department of Veterinary Medicine, Madingley Road, Cambridge, UK.

Publication date: July 1, 2005

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more