Mechanical performance of hybrid Ilizarov frames containing full-threaded Schanz screws

Togrul E., Guelsen M., Sarpel Y., Ozkan C. , Capa M., Herdem M.

ORTHOPEDICS, vol.30, no.4, pp.304-307, 2007 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 4
  • Publication Date: 2007
  • Doi Number: 10.3928/01477447-20070401-09
  • Title of Journal : ORTHOPEDICS
  • Page Numbers: pp.304-307


Modification of circular Ilizarov frames is necessary to overcome the difficulties in pin positioning due to unfavorable anatomic site or local soft-tissue conditions. Hybrid frame configurations consisting of half pins or full-threaded schanz screws are widely used in clinical practice. This study compared the mechanical performance of hybrid frames and a standard system. One standard and five modified hybrid systems were tested under axial compression, four-point bending, and torsional forces. Systems modified with full-threaded schanz screws showed a higher stiffness than half pin modifications and exhibited a similar mechanical performance of a standard system.