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The Journal of Bone and Joint Surgery 78:1915-7 (1996)
© 1996 The Journal of Bone and Joint Surgery, Inc.

The Threadwire Saw: a New Device for Cutting Bone. A Brief Note*

K. TOMITA, M.D., PH.D.{dagger} and N. KAWAHARA, M.D., PH.D.{dagger}, KANAZAWA, JAPAN

Investigation performed at the Department of Orthopaedic Surgery, School of Medicine, Kanazawa University, Kanazawa.


   Introduction
 
Gigli, in 1894, described a simple wire device for cutting bone. Since that time, the Gigli saw has become very popular. However, use of this device may result in cutting of the soft tissue around the bone, a serious risk. The saw also may jam because its surface is rough.

We have developed a new device for cutting bone, a threadwire saw (T-saw; Tomita and Kawahara, Kanazawa, Japan) (Fig. 1). The saw is made of stainless-steel microcable with a diameter of approximately 0.5 millimeter. It produces an extremely thin and smooth cut in the bone with use of a reciprocating motion, similar to that used with the Gigli saw. We have found it to be particularly useful for operations on the spine.



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  		Fig. 1 Photograph showing the Gigli saw (top), the threadwire saw (middle), and 1-0 Dexon (polyglycolic acid) suture thread (bottom).

 
The threadwire saw has a number . . . [Full Text of this Article]


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