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The treatment of metastasis to the femoral neck using percutaneous hollow perforated screws with cement augmentation

¹ National Cancer Center, Orthopaedic Oncology Clinic, 111 Jungbalsanro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410-769, Republic of Korea.
² Department of Orthopaedic Surgery, Seoul National University College of Medicine, 101 Daehangno, Chongno-gu, Seoul 110-744, Republic of Korea.

Correspondence should be sent to Dr H. S. Kim; e-mail: hankim{at}snu.ac.kr

We have developed a hollow perforated cannulated screw. One or more of these was implanted percutaneously in 11 patients with an osteolytic metastasis in the femoral neck and multiple metastases elsewhere. They were supplemented by one or two additional standard 6.5 mm cannulated screws in nine patients. Polymethylmethacrylate bone cement was injected through the screw into the neck of the femur using small syringes, as in vertebroplasty. The mean amount of cement injected was 23.2 ml (17 to 30). Radiotherapy was started on the fourth post-operative day and chemotherapy, on average, was resumed a day later.

Good structural stability and satisfactory relief from pain were achieved in all the patients. This technique may be useful in the palliation of metastases in the femoral neck.