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The Seidel nail revisited- an evaluation of recent design change

  • H. MullettEmail author
  • T. O'Donnell
  • P. Butler
  • T. Burke
Technical note
  • 32 Downloads

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.

Key words

Humerus Seidel Intramedullary nail Torque 

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References

  1. 1.
    Dalton JE, Salkeld SL, Satterwhite YE, Cook SD (1993) A biomechanical comparison of intramedullary nailing systems for the humerus. J Orthopaed Trauma 7: 367–74Google Scholar
  2. 2.
    Kelsch G, Deffner P, Ulrich C (1997) Seidel humerus intramedullary nailing. Clinical results of 100 surgeries. Unfallchirurg 100: 11–8Google Scholar
  3. 3.
    Robinson CM, Bell KM, Court-Brown CM, McQueen MM (1992) Locked nailing of humeral shaft fractures. J Bone Joint Surg 74B: 558–62Google Scholar
  4. 4.
    Varley GW (1995) The Seidel locking humeral nail-The Nottingham experience. Injury 26: 155–157PubMedGoogle Scholar
  5. 5.
    Cristofolini L (1995) Technical note-Mechanical validation of whole bone composite femur models. J Biomech 21: 1–11Google Scholar

Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  1. 1.Orthopaedic RegistrarRegional Orthopaedic Hospital, Croom, Co.LimerickRepublic of Ireland
  2. 2.Department of Mechanical EngineeringUniversity of LimerickLimerickRepublic of Ireland
  3. 3.Consultant Orthopaedic SurgeonRegional Orthopaedic Hospital, Croom, Co.LimerickRepublic of Ireland

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