Changes in the Proximal Femur and Coxofemoral Joint Following Intramedullary Pinning of Diaphyseal Fractures in Young Dogs

We report radiographic changes and clinical results seen in the proximal femur and coxofemoral joint of 7 young dogs following intramedullary pinning. Changes seen radiographically included coxa valga, a small malformed femoral head, a short thin femoral neck, and coxofemoral subluxation. Epiphyseal trauma, ischemia, and mechanical impairment of normal femoral neck growth due to presence of the intramedullary pin are discussed as possible etiologic factors.

[1]  W. R. Daly.  Femoral Head and Neck Fractures in the Dog and Cat: A Review of 115 Cases , 1978 .

[2]  Braden Td,et al.  Radiologic and gross anatomic evaluation of bone healing in the dog. , 1976 .

[3]  R. Leighton.  Complications from mismanagement of fixation devicbs. , 1975, The Veterinary clinics of North America.

[4]  L. Vaughan.  Complications associated with the internal fixation of fractures in dogs. , 1975, The Journal of small animal practice.

[5]  W. Riser.  Growth and Development of the Normal Canine Pelvis, Hip Joints and Femurs from Birth to Maturity: A Radiographic Study1 , 1973 .

[6]  F. C. Ewald,et al.  Effect of distal transfer of the greater trochanter in growing animals. , 1973, The Journal of bone and joint surgery. American volume.

[7]  T. O'brien.  Development deformities due to arrested epiphyseal growth. , 1971, The Veterinary clinics of North America.

[8]  F. Bassett,et al.  Normal vascular anatomy of the head of the femur in puppies with emphasis on the inferior retinacular vessels. , 1969, The Journal of bone and joint surgery. American volume.

[9]  J. Trueta.  Studies of the Development and Decay of the Human Frame , 1968 .

[10]  G. Sumner-Smith.  Observations on epiphyseal fusion of the canine appendicular skeleton. , 1966, The Journal of small animal practice.

[11]  P. Rubin.  Dynamic Classification of Bone Dysplasias , 1964 .

[12]  W. Robert Harris,et al.  Injuries Involving the Epiphyseal Plate , 1963 .

[13]  C. J. Campbell,et al.  The effects produced in the cartilaginous epiphyseal plate of immature dogs by experimental surgical traumata. , 1959, The Journal of bone and joint surgery. American volume.

[14]  L. Laurent.  Growth disturbances of the proximal end of the femur in the light of animal experiments. , 1959, Acta orthopaedica Scandinavica.

[15]  E. Compere,et al.  DEFORMITIES OF THE FEMUR RESULTING FROM ARRESTMENT OF GROWTH OF THE CAPITAL AND GREATER TROCHANTERIC EPIPHYSES , 1940 .