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Cortical bone screws are commonly used in fracture surgery, most patterns are non-self-tapping and require a thread to be pre-cut. This is traditionally performed using hand tools rather than their powered counterparts. Reasons given usually imply that power tools are more dangerous and cut a less precise thread, but there is no evidence to support this supposition. A series of experiments has been performed which show that the thread pattern cut with either method is identical and that over-penetration with the powered tap is easy to control. The concision reached is that both methods produce consistently reliable results but use of power tools is much faster.
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- A study of some factors which affect the strength of screws and their insertion and holding power in bone.J. Biomech. 1968; 1: 279
Accepted: January 21, 1992
© 1992 Published by Elsevier Inc.