Ex vivo kinematic studies of a canine unlinked semi-constrained hybrid total elbow arthroplasty system

Abstract

These results provide valuable information regarding the effect of the Sirius system on ex vivo kinematics of the normal canine elbow joint. Further, this particular ex vivo model allowed for satisfactory and repeatable kinematic analysis.

Computed tomography and radio-graphic assessment of congruity between the ulnar trochlear notch and humeral trochlea in large breed dogs

“…We decided to assess the UTN and HT in contact at ~132° elbow angle, based on the elbow angle during the mid-stance phase of the canine gait cycle (13,22,23,30). However, images using other joint angulations can also be used, since the anatomical UTN and HT areas for analysis are selected independently in images, based on ~132° elbow angulation and not by the visualized contact areas.…”

Curvature Radius Measurements From the Humeral Trochlea in Large Dogs

“…The HT surface to be analyzed was selected at the central groove in contact with the ulnar trochlear notch, with an elbow angle of 132 degrees, based on humeroulnar contact during midstance phase of the gait cycle (DeCamp et al, 1993;Proks et al, 2011;Lorenz et al, 2015). For this purpose, we used as reference the MLE view ( 132 degrees) measuring the humeral contact distance for each elbow ( Fig.…”

The use of subchondral bone topography to approximate the center of rotation of the elbow joint in dogs

“…In people undergoing elbow replacement alignment of the humeral component with the COR of the elbow joint is important to restore normal joint function and to decrease the incidence of implant loosening 1,2 . Elbow replacement techniques, which are most commonly indicated for end‐stage elbow osteoarthritis secondary to fragmented medial coronoid process disease, require an estimation of the location of the COR in order to correctly place the humeral component 3–7 . Each technique uses a different method to determine the COR of the elbow joint, however, the precise location of the COR is not reported for all techniques.…”