What is a femoral Derotational osteotomy?
The term derotational femoral osteotomy (DFO) refers to a procedure designed to treat severe rotational abnormalities of the femur. The rotational alignment of the femur is called femoral torsion and normally ranges from 10° – 20° of antetorsion, meaning that the femur “looks” to the front of the hip joint.
What is the difference between femoral anteversion and Retroversion?
Femoral retroversion is a rotational or torsional deformity in which the femur twists backward (outward) relative to the knee. The opposite condition, in which the femur has an abnormal forward (inward) rotation, is called femoral anteversion. The condition is usually congenital, meaning children are born with it.
What is distal femoral osteotomy?
A distal femoral osteotomy (knock knee surgery) is a procedure whereby a surgical fracture is created at the end of the femur and the shape of the bone is changed.
How common is femoral anteversion?
Femoral anteversion describes the inward rotation of the femur bone in the upper leg. Femoral anteversion occurs in up to 10 percent of children; 99 percent of cases resolve over time without the need for surgery.
How do you fix an anteversion?
A surgery called a femoral derotational osteotomy may be done to correct femoral anteversion. The surgery involves separating the femur bone and rotating it to the correct position. The pieces are then held in place by a rod that is inserted inside the bone.
What is the clinical indication for femoral derotational osteotomy?
Indication Femoral derotational osteotomy is generally considered for patients with symptomatic excessive anteversion of the femur. The indication is based on the combination of symptoms and clinical and radiological evaluation. Clinically, femoral anteversion can be measured according to the technique described by Ruwe et al. [15].
What is the medical term for femoral anteversion?
metatarsus adductus (infants) internal tibial torsion (toddlers) Femoral anteversion is characterized by increased anteversion of the femoral neck relative to the femur. compensatory internal rotation of the femur.
How many cadavers are there for femoral osteotomies?
Weinberg et al. [21•] measured tibial torsion and femoral version in 1158 cadavers and assessed for the presence of degenerative joint disease of the hip and knee. In their study]
What kind of surgery is a femoral osteotomy?
Femoral osteotomy is a surgical procedure that is performed to correct specific deformities of the femur – the long bone in the upper leg – and the hip joint.