Placement of Unilateral Cortical Bone Trajectory Screws in Previously Instrumented Pedicle without Removal of Existing Hardware for Adjacent Segment Disease

November 20, 2021

Case Reports

. 2021 Nov 9;2021:9994539.

doi: 10.1155/2021/9994539.

eCollection 2021.

Affiliations

Item in Clipboard

Case Reports

Rojeh Melikian et al.

Case Rep Orthop.

2021.

Abstract

Adjacent segment disease (ASD) in the lumbar spine is a possible consequence in segments adjacent to a fusion. As the number of lumbar fusions in the United States increases, the rates of ASD will continue to climb. There are several treatment options for ASD with open decompression and extension of the fusion being common. However, need for exposure and removal of existing instrumentation can lead to increased operative times resulting in increasing blood loss and infection risk. The purpose of this paper is to describe a case report for unilateral cortical trajectory screw instrumentation, allowing for posterior instrumentation without having to remove the existing pedicle screws in the setting of ASD. Our technique can be done with standard c-arm fluoroscopy without the need for navigation.

Conflict of interest statement

The authors declare that they have no conflicts of interest.

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