Veterinary and comparative orthopaedics and traumatology vol:11 issue:1 pages:34-41
Forty-one cadaver femora of German Shepherd dogs were prepared for implantation of a cementless total hip prosthesis by reaming of the proximal medullary cavity with standard orthopaedic instruments. Silicone paste imprints of the cavity were taken and measured with a 3 D laser reflection system. Data were processed statistically according to a geometric model with these parameters: distal diameter O-dist, medio-frontal radius r. laterofrontal angle alpha, medio-frontal angle beta, helix angle gamma and increment eccentricity delta(e). Correlations between body mass and O-dist, body mass and r, body mass and beta were moderately significant (p < 0.05, p < 0.06, p < 0.05 resp.). Other correlations between body mass and parameters were not significant. Simple weighing of a German Shepherd is not a useful predictor of the internal dimensions of the proximal femur.