Abstract
BackgroundThe limb center of pressure (COP) path measures and quantifies the load distribution within a limb in a still or moving subject. Under this premise, the aim of this study was to test whether data derived from this parameter could detect the differences between sound and lame limbs in unilaterally lame dogs with elbow dysplasia.To accomplish this purpose, ten unilaterally lame dogs of similar conformation were walked over a pressure platform. Next, the COP path, in relation to the position of sound and lame limbs, was measured in a coordinate system over a standard paw template obtained by pedobarography during the whole support phase. To compare variables, force platform data (peak vertical force and vertical impulse) from the same animals were obtained. Sound and lame limb statokinesiograms were also obtained while the animals stood still.ResultsThe statistical analysis clearly showed that COP in lame limbs start cranially and were shorter than sound limbs. In addition, the value of the COP excursion index was lower in lame limbs. Finally, the area of statokinesiograms was greater in lame limbs.ConclusionThis methodology based in limb COP characteristics serves to discriminate between sound and lame limbs in dogs with elbow dysplasia.
Highlights
The limb center of pressure (COP) path measures and quantifies the load distribution within a limb in a still or moving subject
Significant differences between Lame limb (LL) and Sound limb (CL) were found in all cases (< 0.0001); concretely, a higher value of Caudal margin (Cm) and a lower COP Length, COP Path Length, and Craniocaudal index (CrCI) values in LL were observed when compared with CL
Center of the pressure excursion index (CPEI) in LL were lower than CL (Fig. 2, Additional file 1)
Summary
The limb center of pressure (COP) path measures and quantifies the load distribution within a limb in a still or moving subject Under this premise, the aim of this study was to test whether data derived from this parameter could detect the differences between sound and lame limbs in unilaterally lame dogs with elbow dysplasia. Various methods to analyze the locomotor status within the veterinary field have been developed in order to generate useful parameters from both kinematic and/ or kinetic perspectives These methodologies should be able to provide accurate and reliable data and, if possible, form a set of parameters that will allow for the normal/abnormal static/dynamic events from a wide perspective. This parameter is named statokinesiogram, and its value shows body or limb balance [10]
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