Influence of Coronoid Fracture on Elbow Stability: A Kinematic Study Based on New Clinical Relevant Fracture Classification

  • Jeon, In-Ho (Department of Kyungpook National University) ;
  • Joaquin, Sanchez-Sotelo (Department of Orthopaedic Surgery, Mayo Clinic) ;
  • Steinmann, Scott (Department of Orthopaedic Surgery, Mayo Clinic) ;
  • Zhao, Kristin (Department of Orthopaedic Surgery, Mayo Clinic) ;
  • An, Kai-Nan (Department of Orthopaedic Surgery, Mayo Clinic) ;
  • Morrey, Bernard F. (Department of Orthopaedic Surgery, Mayo Clinic)
  • Published : 2009.03.27

Abstract

This study suggests isolated Type IV-MO or Type IV-LO fractures could be treated with nonsurgical treatment because they do not interfere with normal elbow kinematics. Valgus and external rotation instability were influenced by total articular surface, however, posterior and proximal translation were influenced by isolated articular surface involvement of coronoid. Further clinical studies are warranted to validate these in vitro findings.

Keywords