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Safe zones

Anterolateral approach

Safe zone in the midshaft of the femur

The anatomy in the area between the two solid green lines (on the enlarged view) is represented by one cross section and does not vary significantly between different levels of cross section within this zone.

Anterolateral approach
Palpate the vastus lateralis and the rectus femoris muscle bellies, with the patient in the supine position. The pin should be inserted through in the plane between these two muscles.