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: 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: 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
Authors: McCartney WT, Garvan CB.
Journal: VCOT

OBJECTIVES: To report on a new surgical approach to scapular neck fractures. METHODS: A combined prospective and retrospective study of eight dogs that had sustained a fracture of the scapular neck between 1992 and 2005 was performed. All eight dogs had an internal fixation using a T plate through a muscle separation approach. Retraction of the supraspinatus from the deltoideus and infraspinatus allows an adequate surgical window to enable plating of the scapular neck. RESULTS: Sixty-two percent had an excellent outcome without any lameness or stiffness detected.

Authors: Franklin MA, Rochat MC, Broaddus KD.
Journal: JAAHA

Two dogs, 3 and 6 months of age, were presented with painful, swollen shoulder and carpal joints; reluctance to stand; and pyrexia. Radiographs in both cases revealed an irregular lucent zone in the metaphysis of the proximal humerus, parallel and adjacent to the physis. The same lucent zone was also evident in the physes of the distal radial and ulnar metaphyses. Clinical signs and radiographs were consistent with hypertrophic osteodystrophy. Clinical signs resolved in both dogs with administration of carprofen, tramadol, and intravenous fluids.

Category: Pediatrics - Shoulder
Authors: SEAN E. MURPHY, DVM, Diplomate ACVS 1 , ELIZABETH A. BALLEGEER, DVM 1 , LISA J. FORREST, VMD, Diplomate ACVR 1 , and SUSAN L. SCHAEFER, MS, DVM, Diplomate ACVS 1
Journal: Vet Surg

ABSTRACT Objective—To evaluate the diagnostic potential of magnetic resonance imaging (MRI) compared with a reference standard, arthroscopic and/or open surgery, in dogs with soft tissue shoulder pathology. Study Design—Retrospective study. Animals—Dogs (n=21). Methods—Magnetic resonance (MR) images were retrospectively evaluated in 21 dogs that had surgically identified soft tissue shoulder pathology.