Congenital maldevelopment of the tibia in two calves.
Two calves were admitted for evaluation of valgus deformity centered at the middiaphysis of the right tibia. Each deformity was observed at the time of attended, unassisted birth. The limbs were stable and the calves were ambulatory. Radiography revealed a thick lateral cortex and radiating trabecular bone pattern. The valgus deformities (75 degrees and 45 degrees) were treated by corrective osteotomy. One of the cows was bred and carried a clinically normal fetus to near term before dying of undetermined causes. The angular limb deformities appeared to be attributable to in utero bending stress and bone remodeling early in gestation.
Baird
A N
AN
Department of Large Animal Surgery, College of Veterinary Medicine, Auburn University, AL 36849.
Wolfe
D F
DF
Bartels
J E
JE
Carson
R L
RL
D000818:Animals; D002417:Cattle / Q000002:abnormalities* / Q000601:surgery; D000013:Congenital Abnormalities / Q000601:surgery / Q000662:veterinary; D005260:Female; D010027:Osteotomy / Q000662:veterinary; D013977:Tibia / Q000002:abnormalities* / Q000601:surgery