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 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 4
  • Publication Date: 2007
  • Journal Name: ORTHOPEDICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.304-307
  • Istanbul Technical University Affiliated: No


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.