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Vet Surg. 2011 Apr;40(3):321-6. doi: 10.1111/j.1532-950X.2011.00805.x. Epub 2011 Mar 1.

In vitro comparison of proximal ulnar osteotomy and distal ulnar osteotomy with release of the interosseous ligament in a canine model.

Author information

  • 1Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA. presmight@gmail.com

Abstract

OBJECTIVE:

To determine the effect of proximal ulnar osteotomy (PUO), distal ulnar osteotomy (DUO), and DUO with release of the interosseous ligament (DOLR) on displacement of the proximal ulna at the radioulnar joint.

STUDY DESIGN:

Experimental mechanical study.

SAMPLE POPULATION:

Cadaveric, skeletally mature canine thoracic limb pairs (n=11).

METHODS:

Thoracic limbs disarticulated at the elbow were randomly assigned to 1 of 2 groups: (A) limbs were tested with no treatment (NOTX), then with PUO; (B) limbs were tested with DUO followed by DOLR. A distraction force was applied to the proximal ulna with the distal limb secured in a frame, and displacement of the proximal ulnar segment at the radioulnar joint was recorded.

RESULTS:

Mean displacement was 0.36 mm (95% confidence interval [CI]: 0-1.12 mm) in the NOTX group, 4.68 mm (95% CI: 3.82-5.55 mm) for PUO limbs, 0.95 mm (95% CI: 0.52-1.39 mm) for the DUO group, and 4.36 mm (95% CI: 3.71-5.02 mm) for the DOLR group. Mean ulnar displacement of the DOLR group was significantly different compared with the DUO group, but there was no significant difference between the PUO and DOLR groups.

CONCLUSIONS:

No significant difference was observed in displacement of the proximal ulnar segment after DOLR compared with PUO.

© Copyright 2011 by The American College of Veterinary Surgeons.

PMID:
21361988
[PubMed - indexed for MEDLINE]
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