• M Bühler, C Binkert, and G U Exner.
• Department of Orthopedics, University of Zürich, Switzerland.
• Arch Orthop Trauma Surg. 2001 Sep 1; 121 (8): 458-61.

AbstractSymptoms of osteoid osteoma are cured by removing the nidus. 'En-bloc' resection is often not successful because the nidus is hard to find and remove totally. Recently, minimally invasive procedures have been advocated for the resection of osteoid osteoma. Preceding investigators have used a set of special instruments. The nidus is best localized with computed tomography (CT). Surgery under CT control is only possible with minimal invasive procedures. A technique using standard equipment usually available in the operating room can be used successfully for CT-guided removal of the nidus. We report our preliminary results with 17 patients (12 men, 5 women) with an average age of 22 years (range 6-57 years). All patients were pain-free immediately after the operation. The average follow-up was 8.4 months (range 1-22 months) and the average operating time 75 min (range 50-130 min). Ten patients could be treated as outpatients. The average time in hospital after surgery was 1.5 days (range 1-3 days). There were two complications, one superficial wound infection and one change of operative technique to an open procedure due to a technical problem. The diagnosis could be confirmed histologically.

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