Shoulder

Authors: Milgram J, Hod N, Benzioni H.
Journal: Vet Surg

OBJECTIVE:
To determine if normograde and retrograde pinning of the distal humeral fragment, to maximize pin purchase in this fragment, would damage vital structures in and around the elbow and shoulder joints in dogs.
STUDY DESIGN:
Anatomic study.
SAMPLE POPULATION:
Cadaveric dogs (n = 12; 12 thoracic limb pairs).
METHODS:

Authors: Fitzpatrick N, Yeadon R, Smith TJ, Johnson J, Baltzer WI, Amils R, Farrell M, Frost A, Holsworth IG.
Journal: Vet Surg

OBJECTIVES:
To report surgical technique and clinical outcome of shoulder arthrodesis in dogs.
STUDY DESIGN:
Multicenter clinical case series.
ANIMALS:
Dogs (n = 14).
METHODS:

Authors: Benamou J, Lussier B, Alexander K, Gains MJ, Savard C.
Journal: JAVMA

Case Description-An 18-month-old spayed female domestic shorthair cat was evaluated because of left thoracic limb lameness. Clinical Findings-A firm mass was palpable in the left scapular region. On the basis of clinical signs; results of radiographic, ultrasonographic, and cytologic evaluations; and findings on magnetic resonance imaging, an aneurysmal bone cyst (ABC) of the scapula was strongly suspected. Treatment and Outcome-Considering the large size of the mass and the poor prognosis for return to function of the left thoracic limb, amputation was elected.

Authors: R. L. Plesman (1), S. French (2), S. Nykamp (3), P. B. Ringwood (2)
Journal: VCOT

A seven-month-old cat was referred, after having been missing for one week, for evaluation and treatment of a right forelimb injury and facial fractures. On physical examination, a moderate partial weight-bearing lameness of the right forelimb was present, with palpable crepitus in the glenohumeral joint. Dental radiographs revealed a midline palatal fracture and rostral fractures of the left maxillary canine alveolar bone. Radiographs of the right shoulder revealed a Type III or intra- articular fracture of the scapula with moderate displacement of the fracture at the articular surface.

Category: Shoulder - Trauma
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: 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.