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Subtrochanteric Femur Fractures Deformity

Subtrochanteric femur fractures deformity after antegrade nailing is varus and procurvatum (or flexion).

This is caused by the hip abductors (gluteus medius and gluteus minimus muscles), iliopsoas muscle and short external rotator muscles pulling the proximal fragment into abduction, flexion and external rotation respectively. While the distal fragment is pulled into adduction by the adductor muscles.

  • Subtrochanteric region typically defined as area from lesser trochanter to 5 cm distal.
  • Fractures with an associated intertrochanteric component may be called
    • Intertrochanteric fracture with subtrochanteric extension
    • Peritrochanteric fracture

Last Reviewed
June 11, 2023
Contributed by
OrthoFixar

Orthofixar does not endorse any treatments, procedures, products, or physicians referenced herein. This information is provided as an educational service and is not intended to serve as medical advice.

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