Spontaneous correction of femoral torsion. Diaphyseal osteotomies studied in kittens

Inward or outward torsion of about 25 degrees was produced in the right femur of kittens by midshaft osteotomy and plate fixation. The left femurs served as controls. The anteversion angle of the femoral necks was measured in axial radiographs taken preoperatively and up to 58 weeks postoperatively. As the bones grew in length, the difference in the anteversion angle between matched femurs was gradually corrected.