Shoulder

Authors: Fitzpatrick N, van Terheijden C, Yeadon R, Smith TJ.
Journal: Vet Surg

OBJECTIVE: To establish whether osteochondral autograft transfer (OAT) procedures for osteochondritis dissecans (OCD) of the canine caudocentral humeral head would restore articular contour, resurface osteochondral defects, and resolve lameness in dogs with OCD.
STUDY DESIGN: Case series.
ANIMALS: Dogs (n=14) with caudocentral humeral head OCD (16 shoulders).

Category: Shoulder
Authors: Schaefer SL, Baumel CA, Gerbig JR, Forrest LJ.
Journal: Vet Rad Ultrasound

Our goal was to evaluate the ability of three magnetic resonance arthrography (MRA) techniques to improve visualization of soft tissue stabilizing components of the canine shoulder. The optimum concentration of gadolinium (gadodiamide) for MRA was determined by imaging seven individual shoulders with one of seven dilutions of 0.5 mol/l gadodiamide in saline; (1:100, 1:400, 1:800, 1:1000, 1:1200, 1:1400, and 1:1600). For this, sagittal and dorsal T1-weighted fat saturation (T1WFS) images were used.

Category: Imaging - Shoulder
Authors: Bergenhuyzen AL, Vermote KA, van Bree H, Van Ryssen B.
Journal: VCOT

OBJECTIVE: To report the long-term clinical outcomes and radiographic results in dogs diagnosed with partial bicipital rupture and treated by arthroscopic tenotomy. MATERIALS AND METHODS: The medical records of dogs that had undergone arthroscopic tenotomy were retrospectively reviewed. Inclusion criteria for this study were: performance of an arthroscopic tenotomy between August 1999 and July 2007, availability of arthroscopic records data for review, and ability to obtain follow-up data for more than one year after arthroscopic tenotomy.

Authors: Riener S, Lehmann K, Lorinson D, Skalicky M.
Journal: VCOT

We describe the creation of a cranial instrument portal for shoulder joint arthroscopy in the dog using a target device that has been successfully employed for the caudal access. We compared the method with a conventional triangulation technique. The shoulder joints of 60 dog cadavers were investigated by arthroscopy and the two methods were compared on the basis of pre-defined parameters of outcome. Time, the number of trials, success, damage to cartilage and the accessibility of intra-articular structures were assessed.

Category: Arthroscopy - Shoulder
Authors: Ridge P.
Journal: VCOT

The aim of this cadaveric study was to determine the normal arthroscopic anatomy of the feline shoulder from a caudolateral arthroscope portal, to compare this with the gross anatomy evident upon dissection, and to determine the degree of iatrogenic trauma caused by the arthroscopy. A 1.9 mm, 30 degrees fore oblique arthroscope via a caudolateral portal, and a 21-gauge needle via a craniolateral egress portal were used to assess intra-articular structures in eight feline cadaveric shoulders.

Category: Arthroscopy - Shoulder
Authors: M. PILAR LAFUENTE, DVM PhD 1 , BOEL A. FRANSSON, DVM, PhD, Diplomate ACVS 1 , JAMES D. LINCOLN, DVM, MS 1 , STEVEN A. MARTINEZ, DVM, MS, Diplomate ACVS 1 , PATRICK R. GAVIN, DVM, PhD, Diplomate ACVR 1 , KEVIN K. LAHMERS, DVM, PhD, Diplomate ACVP 1 , JOHN
Journal: Vet Surg

Objective—To report and compare the clinical diagnosis, surgical treatment, histopathologic changes, and outcomes of dogs with mineralized and nonmineralized supraspinatus tendinopathy (ST).
Study Design—Case series.
Animals—Dogs (n=24) with ST.
Methods—Medical records (1995–2006) of dogs with ST that had surgical treatment were reviewed. Results of clinical examination, diagnostic imaging, surgery, histopathology of resected tendon tissue, and outcome were compared between dogs with mineralized and nonmineralized ST.

Authors: Franch J, Bertran J, Remolins G, Fontecha P, Diaz-Bertrana C, Durall I.
Journal: VCOT

A case of bilateral fibrotic contracture of the infraspinatus muscles in a five-year-old Belgian Shepherd dog is described. The dog was presented with progressive forelimb lameness with postural and gait abnormalities three months after an episode of overexertion. When walking, the lower part of both forelimbs swung in a lateral arc causing a circumduction movement and in the standing position, the dog showed elbow adduction with external rotation of the distal part of both front limbs.

Authors: Franch J, Bertran J, Remolins G, Fontecha P, Diaz-Bertrana C, Durall I.
Journal: VCOT

A case of bilateral fibrotic contracture of the infraspinatus muscles in a five-year-old Belgian Shepherd dog is described. The dog was presented with progressive forelimb lameness with postural and gait abnormalities three months after an episode of overexertion. When walking, the lower part of both forelimbs swung in a lateral arc causing a circumduction movement and in the standing position, the dog showed elbow adduction with external rotation of the distal part of both front limbs.

Authors: JAMES L. COOK, DVM, PhD, Diplomate ACVS 1 and CRISTI R. COOK, DVM, MS, Diplomate ACVR 1
Journal: Vet Surg

ABSTRACT
Objective—Characterize clinical findings and outcomes in dogs with forelimb lameness.
Study Design—Prospective case series.
Animals—Dogs (n=19) with forelimb lameness.
Methods—Dogs were included when lameness was attributed to shoulder and/or elbow pathology with informed consent for bilateral shoulder and elbow arthroscopy. Historical, clinical examination and diagnostic imaging findings were recorded. Localization of lameness was determined and subjective arthroscopic assessment of shoulders and elbows performed. Outcomes were subjectively assessed by owner survey.

Authors: Agnello KA, Puchalski SM, Wisner ER, Schulz KS, Kapatkin AS.
Journal: Vet Radiol Ultrasound

This study was performed to determine the effect of shoulder extension and flexion, imaging plane, and intraarticular paramagnetic contrast medium administration on the visibility of soft tissue structures surrounding the canine shoulder joint using magnetic resonance (MR) imaging. Eight dogs without shoulder disease were imaged using a 1.5 T MR scanner. In all dogs, T1- and T2-weighted spin-echo sequences in sagittal, transverse, and dorsal planes, and a sagittal short tau inversion recovery (STIR) sequence were acquired with the shoulder joint in extension.

Category: Imaging - Shoulder