Biomechanical changes of hip joint following different types of corrective osteotomy--photoelastic studies

Acta Bioeng Biomech. 2008;10(3):65-71.


The paper presents the results of some comparative experimental studies that show the biomechanical changes which appear following different types of corrective osteotomy. The photoelastic technique was applied to plane models. The modifications in the stress distribution on the contour after the osteotomy in comparison with the situation before surgery were studied. Three types of osteotomy are considered: valgus osteotomy, varus osteotomy and Chiari pelvis osteotomy. Using the same experimental technique, the distribution of the contact pressure at the interface between the polyethylene cup and the femoral head is investigated, for a total hip prosthesis, as the extreme solution in the case of advanced hip arthroses. Both a normal situation and the malposition of prosthetic components were analyzed.

Publication types

  • Comparative Study

MeSH terms

  • Biomechanical Phenomena
  • Elasticity / physiology
  • Hip Dislocation, Congenital / pathology
  • Hip Dislocation, Congenital / physiopathology
  • Hip Dislocation, Congenital / surgery
  • Hip Joint / pathology
  • Hip Joint / physiopathology*
  • Hip Joint / surgery*
  • Hip Prosthesis
  • Humans
  • In Vitro Techniques
  • Models, Biological
  • Osteoarthritis, Hip / pathology
  • Osteoarthritis, Hip / physiopathology
  • Osteoarthritis, Hip / surgery
  • Osteotomy / methods
  • Photography