OBJECTIVE: To evaluate a 3-D kinematic model of the hind limb developed by use of a joint coordinate system in dogs. ANIMALS: 6 clinically normal adult mixed-breed dogs. PROCEDURES: 17 retroreflective markers were affixed to the skin on the right hind limb of each dog. Eight infrared cameras were arranged around a gait platform to record marker locations as dogs were recorded moving through the calibrated space 5 times during a walk and trot at velocities of 0.9 to 1.2 m/s and 1.7 to 2.1 m/s, respectively. Local and global coordinate systems were established, and a segmental rigid-body model of the canine hind limb was produced. Dynamic 3-D joint kinematic measurements were collected for the hip, stifle, and tarsal joints. RESULTS: Sagittal (flexion-extension), transverse (internal-external rotation), and frontal (abduction-adduction) plane kinematic measurements were acquired during each trial for the hip, stifle, and tarsal joints. CONCLUSIONS AND CLINICAL RELEVANCE: The joint coordinate system allowed acquisition of 3-D kinematic measurements of the hip, stifle, and tarsal joints of the canine hind limb. Methods were described to model 3-D joint motion of the canine hind limb.
OBJECTIVE: To evaluate a 3-D kinematic model of the hind limb developed by use of a joint coordinate system in dogs. ANIMALS: 6 clinically normal adult mixed-breed dogs. PROCEDURES: 17 retroreflective markers were affixed to the skin on the right hind limb of each dog. Eight infrared cameras were arranged around a gait platform to record marker locations as dogs were recorded moving through the calibrated space 5 times during a walk and trot at velocities of 0.9 to 1.2 m/s and 1.7 to 2.1 m/s, respectively. Local and global coordinate systems were established, and a segmental rigid-body model of the canine hind limb was produced. Dynamic 3-D joint kinematic measurements were collected for the hip, stifle, and tarsal joints. RESULTS: Sagittal (flexion-extension), transverse (internal-external rotation), and frontal (abduction-adduction) plane kinematic measurements were acquired during each trial for the hip, stifle, and tarsal joints. CONCLUSIONS AND CLINICAL RELEVANCE: The joint coordinate system allowed acquisition of 3-D kinematic measurements of the hip, stifle, and tarsal joints of the canine hind limb. Methods were described to model 3-D joint motion of the canine hind limb.
Authors: Kevin J Warburton; John B Everingham; Jillian L Helms; Andrew J Kazanovicz; Katherine A Hollar; Jeff D Brourman; Steven M Fox; Trevor J Lujan Journal: J Orthop Res Date: 2017-11-14 Impact factor: 3.494
Authors: Kimberley L Cullen; James P Dickey; Stephen H M Brown; Stephanie G Nykamp; Leah R Bent; Jeffrey J Thomason; Noël M M Moens Journal: BMC Vet Res Date: 2017-03-07 Impact factor: 2.741
Authors: Nathan P Brown; Gina E Bertocci; Gregory J R States; Gwendolyn J Levine; Jonathan M Levine; Dena R Howland Journal: Front Bioeng Biotechnol Date: 2020-03-11