Osteoid osteoma is a relatively common benign osteogenic tumor that mainly occurs in children and young adults. The common curative treatment involves an en bloc surgical excision of the nidus. Because intraoperative localization of a small bone lesion can be difficult, surgical removal of the tumor often necessitates significant bone resection and soft tissue damage. The authors treated a case of osteoid osteoma involving the proximal femur by image intensifier guided percutaneous ablation with a cannulated screw and believe the technique simple, minimally invasive and safe for the treatment of osteoid osteoma.