The percentages of change in cross-sectional area and dorsoventral height of the rima glottidis were measured after seven types of laryngoplasty in 30 postmortem canine specimens. The mean increases in area after each procedure were, in decreasing order, bilateral cricoarytenoid disarticulation with interarytenoid sesamoid band transection before placement of arytenoid abduction sutures 350% +/- 42%, bilateral placement of arytenoid abduction sutures 318% +/- 40%, bilateral cricothyroid disarticulation before placement of arytenoid abduction sutures 255% +/- 51%, modified castellated laryngofissure 244% +/- 30%, unilateral cricoarytenoid disarticulation with interarytenoid sesamoid band transection before placement of an arytenoid abduction suture 161% +/- 25%, unilateral placement of an arytenoid abduction suture 151% +/- 24% and unilateral cricothyroid disarticulation before placement of an arytenoid abduction suture 108% +/- 25%. Bilateral cricoarytenoid disarticulation with interarytenoid sesamoid band transection before placement of arytenoid abduction sutures resulted in a significantly greater increase in rima glottidis area than modified castellated laryngofissure and all unilateral arytenoid abduction techniques. Modified castellated laryngofissure resulted in a significantly greater increase than unilateral placement of an arytenoid abduction suture and cricothyroid disarticulation before placement of an arytenoid abduction suture. Bilateral disarticulation of the cricothyroid joint before placement of arytenoid abduction sutures resulted in significant collapse of the dorsoventral height of the rima glottidis.

Four chlorhexidine diacetate (CHD) antiseptic wound lavage preparations were evaluated in vivo to determine their effects on second intention wound healing in the dog in vitro to determine their relative antibacterial activity against Staphylococcus intermedius. Chlorhexidine was diluted to 0.05% in sterile water, 0.9% sodium chloride, lactated Ringers solution (LRS), and LRS that was allowed to form a precipitate with CHD. Control solutions included sterile water and LRS. There were no significant differences in wound contraction or epithelialization. All 0.05% CHD preparations provided 100% bacterial kill.

Objective To evaluate the magnitude and direction of radial torsion (RT) in dogs with medial compartment disease (MCD). Study design Case‐control study. Sample population Twenty‐eight healthy dogs and 28 dogs with confirmed MCD. Methods Computed tomography images of each dog's antebrachium were evaluated. Radial torsion was measured by using previously described landmarks on the proximal and distal radius. Differences between groups were tested with Student's t tests and Wilcoxon rank‐sum tests. Results Healthy dogs had a mean RT angle of 3.44° (range, 1.28°‐5.44°). Dogs with MCD had a mean RT angle of 11.84° (range, 2.31°‐26.55°). Both groups included similar proportions of dogs with external (76% vs 77%) and internal (24% vs 23%) torsion. The direction of torsion (P = .21 and P = .69) did not appear to affect the magnitude of the RT angle. Conclusion Dogs with MCD had an increased RT angle compared with healthy controls. The direction of torsion varied similarly between groups regardless of the disease status of dogs in this study. Clinical significance The fourfold increase in the RT seen in dogs with MCD may contribute to the rotational overload proposed recently, potentially modifying the orientation of the elliptical radial head and the ligaments crossing the elbow joint.

SummarySeptic arthritis of the elbow due to trauma was diagnosed in a young lioness and the joint was fused with internal and external fixations. External skeletal fixation was used for three months in order to augment bone plating and enhance bone fusion of the joint. Combining internal and external stabilizing procedures was tolerated by the animal and permitted limb salvage in a large, growing, non-domesticated animal.Septic and degenerative elbow arthritis due to trauma requires aggressive medical and surgical treatments to preserve limb function. In this case, systemic antibiotics, joint lavage and arthrodesis were used successfully in a lioness (Panthera leo) to save the forelimb.