J Korean Orthop Assoc.  2005 Oct;40(6):778-781.

C1-2 Fixation Using Polyaxial Screws and Rods Assisted by Computer Simulation for Revision of Failed Posterior Fusion: A Technical Report

Affiliations
  • 1Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Korea. seiswon@naver.com
  • 2Spine Institute, Soonchunhyang University, College of Medicine, Seoul, Korea.

Abstract

Segmental C1-2 screw fixation using C1 lateral mass screws and C2 pedicle screws is a technically demanding procedure which can cause injuries to the vertebral artery or neural structures as well as massive bleeding from the epidural venous plexus. In particular, this procedure is more difficult in revision cases because of the lack of normal anatomical landmarks, adhesion, and bleeding. The authors report a case of a patient in whom preoperative surgical simulation and planning using computer software was very helpful in the direct screwing of the atlas and axis for a revision of atlantoaxial fusion.

Keyword

Posterior atlantoaxial fusion; Atlantoaxial segmental screw fixation; Computer simulation

MeSH Terms

Axis, Cervical Vertebra
Computer Simulation*
Hemorrhage
Humans
Vertebral Artery
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