case_images: PMC8650678_01
case_images: (a) Preoperative X-ray of the patient demonstrating the mass at the proximal femur. (b) Preoperative coronal section.
case_images: JDRS-2021-32-3-792-797-F1.jpg
case_images: PMC8650678_01_JDRS-2021-32-3-792-797-F1.jpg
case_images: F1
case_images: Prior to his visit, imaging with X-rays and magnetic resonance imaging (MRI) followed by a biopsy were performed at an external center with a diagnosis of osteosarcoma (Figure 1).
case_images: (a) Epiphysis of the femoral head spared. (b) A branch of the obturator artery in the ligamentum capitis femoris preserved. (c) Cryoablation of the resected proximal femur segment. (d) The VFG was integrated to the cryoablated bone with a PHILOS plate.
  VFG: Vascularized fibular grafting.
case_images: JDRS-2021-32-3-792-797-F2.jpg
case_images: PMC8650678_01_JDRS-2021-32-3-792-797-F2.jpg
case_images: F2
case_images: Turkey) (Figure 2). The vascularized fibula was microsurgically anastomosed to the perforating femoral arteries and veins.
case_images: (a) Immediate postoperative X-ray image. (b) Postoperative single-photon emission computed tomography image showing a viable graft tissue. (c) X-ray at final follow-up three years after surgery.
case_images: JDRS-2021-32-3-792-797-F3.jpg
case_images: PMC8650678_01_JDRS-2021-32-3-792-797-F3.jpg
case_images: F3
case_images: He was discharged with a unilateral hip spica cast (Figure 3a).  Three years after surgery, the patient remained disease-free (Figure 3c), could walk without assistance, and was able to flex his left hip to 145  (Figure 4).
case_images: (a) Patient standing upright and bearing full weight three years postoperatively. (b) He is able to flex his hip to 145  and squat without assistance.
case_images: JDRS-2021-32-3-792-797-F4.jpg
case_images: PMC8650678_01_JDRS-2021-32-3-792-797-F4.jpg
case_images: F4
case_images: Three years after surgery, the patient remained disease-free (Figure 3c), could walk without assistance, and was able to flex his left hip to 145  (Figure 4).