Coxofemoral Agenesis and Femoral Head Ostectomy in a Labradoodle Puppy
An 18-week old female intact Labradoodle presented to Cornell’s Orthopedic Service for evaluation of an intermittent bunny-hopping gait. The patient was acquired from a breeder, who noted a hip abnormality at 7 weeks of age. At 15 weeks, the referring veterinarian suspected right coxofemoral joint luxation and referred the puppy to Cornell for possible juvenile pubic symphysiodesis surgery. On presentation, there was severe generalized muscle atrophy of the right pelvic limb and palpable hip asymmetry with the right femur displaced cranio-dorsally. Pain was elicited on extension of both hips, the right more severe than the left. Two-view pelvic radiographs revealed severe congenital malformations of the right proximal femur and acetabulum. The patient was anesthetized and a femoral head ostectomy and ovariohysterectomy were performed. This report will describe the postnatal development of the coxofemoral joint, as well as surgical treatment options for congenital hip abnormalities.