Imaging Guided Cementoplasty for Pelvic Bone Metastasis

"Percutaneous image guided cementoplasty will be performed as follows:~Low-viscosity radiopaque bone cement will be quickly mixed and transferred to 1-ml syringes to reduce injection resistance. Injection will be initiated 2-4 min after mixing. When the resistance to cement injection becomes high in the beginning, the cement will be pushed in with a stylet, and it will go well afterward. As much bone cement as possible will be injected while avoiding leakage into the hip joint, sciatic notch, or veins under fluoroscopic monitoring. When significant cement leakage occurred at the initial stage, cement injection will be performed via another route or will be stopped and resumed when the cement viscosity increased. The cement will begin to harden after 8 min, and the operator, therefore, will aim to complete the delivery of the injection within 10 min. The injection needles must be removed before the cement hardens completely"