Fig. 3From: Iatrogenic sciatic nerve injury during liposuction and fat tissue grafting: a preventable surgical complication with devastating patient outcomesDanger zone in the upper thigh and lower gluteal region corresponding to the ischio-trochanteric channel. The zone (light gray zone) centers on an imaginary line (represented by a black line) that crosses between the coccyx and the greater trochanter of the femur. In hip flexion, the sciatic nerve (SN) may become more superficial, as the overlying muscles are stretched, and thus prone to blunt traumaBack to article page