Elbow

Authors: Smith ZF, Wendelburg KL, Tepic S, Stover SM, Garcia-Nolen T, Stearns PB, Hayashi K.
Journal: VCOT

Elbow dysplasia, primarily affecting the medial compartment, is the most common cause of lameness in the thoracic limb. Elbow arthroplasty is an option for end stage or severely affected patients. The purpose of this study was to compare ex vivo axial load to failure of an implanted novel elbow arthroplasty system to control limbs. The partial arthroplasty is a medial compartmental, unconstrained system, intended to allow conversion to total arthroplasty. We hypothesized that there would not be any significant difference between implanted and controlled limbs when loaded to failure.

Authors: de Bakker E, Samoy Y, Coppieters E, Mosselmans L, Van Ryssen B.
Journal: VCOT

Objectives: To investigate the possibilities and limitations of arthroscopy to detect flexor enthesopathy in dogs and to distinguish the primary from the concomitant form. Materials and methods: Fifty dogs (n = 94 elbow joints) were prospectively studied: dogs with primary flexor enthesopathy (n = 29), concomitant flexor enthesopathy (n = 36), elbow dysplasia (n = 18), and normal elbow joints (n = 11). All dogs underwent an arthroscopic examination of one or both elbow joints.

Authors: de Bakker E, Peremans K, Vermeire S, Vandermeulen E, Dobbeleir A, Dik KJ, Gielen I, Saunders JH, Van Ryssen B
Journal: VCOT

Objective: To investigate the possibilities and limitations of planar bone scintigraphy and high resolution single photon emission computed tomography (HiSPECT) to diagnose flexor enthesopathy and to distinguish primary flexor enthesopathy from the concomitant form. Materials and methods: A prospective study of 46 dogs with primary flexor enthesopathy, concomitant flexor enthesopathy, medial coronoid disease, and normal elbows was performed. All dogs underwent planar bone scintigraphy and HiSPECT imaging.

Authors: Fitzpatrick N, Caron A, Solano MA.
Journal: Vet Surg

OBJECTIVE:
To evaluate radioulnar joint modification using computed tomography (CT) after bi-oblique dynamic proximal ulnar osteotomy (BODPUO).
STUDY DESIGN:
Clinical study.
ANIMALS:
Dogs (n = 18, 26 elbows) with elbow incongruence treated by a single surgeon with BODPUO.
METHODS:
Radioulnar space measurements were performed on transverse, frontal, and sagittal CT projections preoperatively and after radiographically determined osteotomy healing.
RESULTS:

Category: Elbow
Authors: Maddox TW, May C, Keeley BJ, McConnell JF.
Journal: Vet Radiol Ultrasound

Computed tomography (CT) is an established technique for detecting shoulder lesions in dogs, however the clinical significance of shoulder CT lesions often remains uncertain. The purposes of this retrospective study were to describe the prevalence of CT lesions in both shoulder joints for 89 dogs presenting with thoracic limb lameness and to compare CT lesions with clinical characteristics. For all included dogs, results of a full orthopedic examination, other diagnostic tests, and signalment data were available in medical records.

Authors: Debruyn K, Peremans K, Vandermeulen E, Van Ryssen B, Saunders JH.
Journal: Vet J

Scintigraphy is an extremely sensitive tool for the detection of early changes in bone metabolism. Sixty-eight lame dogs underwent a scintigraphic examination. For each elbow lateromedial (LM), caudomedial (CdM) flexed and caudomedial (CdM) extended scintigraphic views were obtained. Semi-quantitative analysis was performed to determine radiopharmaceutical uptake at the medial coronoid process (MCP) and at the attachment of the flexor muscles at the medial humeral epicondyle, normalised to activity registered in either the total elbow joint or the radius/ulna.

Category: Elbow - Imaging
Authors: Eljack H, Werner H, Böttcher P.
Journal: Vet Surg

OBJECTIVE:
To determine the sensitivity and specificity of estimation of radioulnar incongruence (RUI) by use of 3-dimensional (3D) image renderings in combination with a sphere fitted to the ulnar trochlear notch.
STUDY DESIGN:
In vitro study.
SAMPLE POPULATION:
Right forelimbs (n = 8) of canine cadavers weighing >20 kg.
METHODS:

Category: Elbow - Imaging
Authors: Rose ND, Freeman A, Conzemius MG.
Journal: Vet Surg

OBJECTIVE:
To measure the loads required to induce lateral luxation of the Iowa State University (ISU) elbow implant, a modified elbow implant, and the normal canine elbow with the ligaments and joint capsule removed.
STUDY DESIGN:
Mechanical testing on cadaveric specimens
SAMPLE POPULATION:
Twelve thoracic limbs were harvested from adult, medium sized dogs that had been euthanatized for reasons unrelated to the study.
METHODS:

Authors: Böttcher P, Bräuer S, Werner H.
Journal: Vet Surg

OBJECTIVE:
To characterize joint incongruence in dysplastic canine elbows before and after dynamic proximal ulnar osteotomy (DPUO).
STUDY DESIGN:
Clinical, prospective study.
ANIMALS:
Dogs (n = 10; 12 elbows) with ≥2 mm radioulnar incongruence (RUI), FCP, and/or OCD.
METHODS:

Category: Elbow
Authors: Burton NJ, Ellis JR, Burton KJ, Wallace AR, Colborne GR.
Journal: JSAP

OBJECTIVE:
To devise a kinematic technique to objectively ascertain the location and orientation of the centre of rotation of the canine elbow and to compare this axis following arthroplasty with the first generation TATE™ prosthesis in an ex vivo model.
METHODS: