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The Seidel nail revisited- an evaluation of recent design change |
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| Authors: | H. Mullett T. O'Donnell P. Butler T. Burke |
| Affiliation: | (1) Orthopaedic Registrar, Regional Orthopaedic Hospital, Croom, Co., Limerick, Republic of Ireland;(2) Department of Mechanical Engineering, University of Limerick, Limerick, Republic of Ireland;(3) Consultant Orthopaedic Surgeon, Regional Orthopaedic Hospital, Croom, Co., Limerick, Republic of Ireland;(4) 41 Bushy Park Road, Terenure, Dublin 6, Ireland |
| Abstract: | This study evaluated a recent design change of the distal locking mechanism of the Seidel nail. The distal expansion bolt has been modified to incorporate a swagged rotating collar. The torque requirement for distal locking was measured for the original and new bolt design using a composite bone humeral model. Ten of each screw type were tested. The torque requirement for distal locking was less in the original bolt design. However the torque transmission is smoother in the new bolt design making appreciation of adequate locking more reliable. |
| Keywords: | Humerus Seidel Intramedullary nail Torque |
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