Paper| Volume 23, ISSUE 7, P451-452, 1992

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The use of power tools in the insertion of cortical bone screws

  • D. Elliott
    Requests for reprints should be addressed to: Mr D. S. Elliott, Orthopaedic Registrar, Department of Orthopaedics, St George's Hospital, Blackshaw Road, London SW17 0QT, UK.
    St George's Hospital, London, UK
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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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        • Ansell R.H.
        • Scales J.T.
        A study of some factors which affect the strength of screws and their insertion and holding power in bone.
        J. Biomech. 1968; 1: 279