Subtrochanteric Shortening in Total Hip Arthroplasty: Biomechanical Comparison of Four Techniques


Muratli K. S., Karatosun V. A., UZUN B., Celik S.

JOURNAL OF ARTHROPLASTY, vol.29, no.4, pp.836-842, 2014 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1016/j.arth.2013.09.004
  • Journal Name: JOURNAL OF ARTHROPLASTY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.836-842
  • Keywords: hip joint, arthroplasty, biomechanics, osteotomy, hip dislocation, congenital, FEMORAL-SHAFT FRACTURES, CONGENITAL DISLOCATION, DEVELOPMENTAL DYSPLASIA, SURGICAL TECHNIQUE, FOLLOW-UP, OSTEOTOMY, FIXATION, TRANSVERSE, BONE, STEM
  • Dokuz Eylül University Affiliated: Yes

Abstract

Safe reduction of the femoral head into the true acetabulum requires a certain amount of femoral shortening in patients with high dislocation of the hip. In subtrochanteric shortening applications, to reduce complications it is necessary to maintain a stable fixation at the osteotomy line. The purpose of this study is to investigate frequently used methods from a biomechanical point of view. Four osteotomy groups were created with composite femurs to investigate subtrochanteric osteotomies; transverse, oblique, z-subtrochanteric and double Chevron. All loading tests were carried out with two implant types both with and without strut graft and cable fixation. No single inherent feature increasing the stability of the investigated osteotomy types was found. Additionally graft application did not have a significant contribution to stability. (C) 2014 Elsevier Inc. All rights reserved.