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Abductors
3%
56/1662
Adductors
89%
1486/1662
Hip flexors
4%
67/1662
Hip extensors
2%
35/1662
Hip external rotators
0%
6/1662
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Adductor myodesis is critical for optimal outcome after transfemoral amputation. Pinzur et al. emphasize that when the adductors are not anchored to bone, the hip abductors are able to act unopposed, producing a dynamic flexion-abduction deformity. This deformity prepositions the femur in an orientation that is not conducive to efficient walking. The retracted adductor muscles lead to a poorly cushioning soft-tissue envelope, further complicating prosthetic fitting. Preservation of a functional adductor magnus helps to maintain the muscle balance between the adductors and abductors by allowing the adductor magnus to maintain its power and retain the mechanical advantage for positioning the femur. Preservation is best accomplished with a myodesis.
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