Advertisement

Subtrochanteric Fractures of the Femur

  • J. Schatzker

Abstract

The subtrochanteric segment of the femur extends from the lesser trochanter to the junction of the proximal and middle thirds of the diaphysis. This segment of the femur is subjected not only to axial loads of weight bearing, but also to tremendous bending forces because of the eccentric load appli-cation to the femoral head (Fig. 12.1). Recent strain-gauge studies in vivo (Schatzker et al. 1980) have confirmed Pauwel’s and the AO/ASIF contention that the bending forces cause the medial cortex to be loaded in compression and the lateral in tension. Furthermore, they have shown that the compressive stresses in the medial cortex are signif-icantly higher than tensile stresses in the lateral cortex.

Keywords

Femoral Head Internal Fixation Proximal Femur Great Trochanter Intramedullary Nailing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Cochran GVB, Zickel RE, Fielding JW (1980) Stress analysis of subtrochanteric fractures: effect of muscle forces and internal fixation devices. In: Uhthoff HK (ed) Current concepts of internal fixation of fractures. Springer, Berlin Heidelberg New YorkGoogle Scholar
  2. Ender SW (1970) Die Fixierung der Trochanterbrüche mit runden elastischen Kondylennägeln. Acta Chir Austriaca 1:40–42CrossRefGoogle Scholar
  3. Kempf I, Grosse A, Beck G (1985) Closed locked intramedullary nailing. J Bone Joint Surg 67A: 709–720Google Scholar
  4. Küntscher G (1967) Practice of intramedullary nailing. Thomas, Springfield, p 178Google Scholar
  5. Müller ME, Allgöwer M, Schneider R, Willenegger H (1979) Manual of internal fixation, 2nd edn. Springer, Berlin Heidelberg New YorkCrossRefGoogle Scholar
  6. Pankovich AM, Tarabishy IE (1980) Ender nailing of intertrochanteric and subtrochanteric fractures. J Bone Joint Surg 62A: 635–645Google Scholar
  7. Schatzker J, Waddell JP (1980) Subtrochanteric fractures of the femur. Orthop Clin North Am 11(3):539–554PubMedGoogle Scholar
  8. Schatzker J, Manley PA, Sumner-Smith G (1980) In vivo strain-gauge study of bone response to loading with and without internal fixation of fractures. Springer, Berlin Heidelberg New York, pp 306–314Google Scholar
  9. Zickel RE (1976) An intramedullary fixation device for the proximal part of the femur. J Bone Joint Surg 58 A: 866–872Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • J. Schatzker

There are no affiliations available

Personalised recommendations