Fig. 4From: A modified surgical method for the treatment of ONFH: quadratus femoris muscle pedicle bone grafting with preservation of the posterior superior retinacular arteryBlood supply of the quadratus femoris muscle. 1. IGA; 2. MFCA; 3. Deep branch of the MFCA; 4. Quadratus femoris muscle; 5. Quadratus femoris bone flap; 6. Greater trochanterBack to article page