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Cannulation of simple bone cysts

Department of Orthopaedic Surgery, School of Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-8641, Japan.

Y. Takagi, MD, PhD, Consultant

Division of Orthopaedic Surgery, Tonami City General Hospital, 1-61 Shintomi-cho, Tonami 939-1343, Japan.

H. Yasutake, MD, PhD, Consultant

Division of Orthopaedic Surgery, Central Hospital of Ishikawa Prefecture, Nu 153 Minanishinbo-machi, Kanazawa 920-8530, Japan.

Correspondence should be sent to Dr H. Tsuchiya.

We describe a consecutive series of 26 patients with simple bone cysts who were treated by curettage, multiple drilling and continuous decompression by the insertion of either a cannulated screw or a pin. In the first 15 patients we used titanium cannulated screws (group 1) and in the next 11 a cannulated hydroxyapatite pin (group 2). Satisfactory healing was achieved in 12 patients in group 1 (80%) and in all in group 2. This technique seems to be a promising option for the treatment of simple bone cysts. The cannulated hydroxyapatite pin is recommended because of its higher success rate and the fact that it does not need to be removed.