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Axial Lumbosacral Interbody Fusion Appears Safe as a Method to Obtain Lumbosacral Arthrodesis Distal to Long Fusion Constructs

Paul S. Issack, MD, PhD
Hospital for Special Surgery

Image - Photo of Oheneba Boachie-Adjei, MD - Emeritus 9/1/14

Abstract

Background

Current methods to achieve lumbosacral interbody fusion have been complicated by approach-related morbidity, nerve root or cauda equina injury, or difficulty in implanting a large lordotic graft posteriorly. There is little information in the literature evaluating the presacral axial approach to the lumbosacral disc space.

Questions/Purposes

What are the short-term clinical and radiographic outcomes in patients undergoing axial lumbosacral interbody fixation and fusion at the end of long fusion constructs using the AxiaLIF implant (Trans1 Inc., Wilmington, NC, USA)? Furthermore, what complications are associated with this procedure?

Patients and Methods

We performed a retrospective evaluation of nine patients who underwent presacral axial lumbosacral interbody fixation and fusion at the end of long fusion constructs using the AxiaLIF implant. Preoperative diagnoses included adjacent segment degeneration below a long fusion construct for adult scoliosis and progressive sagittal plane deformity.

Results

There were two pseudoarthroses, one at L4–5 and one at L5–S1. No major complications occurred. There were no significant differences in coronal or sagittal plane alignment at the time periods measured. There was no significant difference in implant position between immediate postoperative and final follow-up periods. There were significant postoperative improvements in Scoliosis Research Society-22 scores, specifically in the pain, self-image, and satisfaction with management domains.

Conclusions

The axial lumbosacral interbody fusion is a minimally invasive and safe method to obtain lumbosacral fixation and arthrodesis distal to a long fusion construct. Longer follow-up of larger numbers of patients are needed prior to recommending this procedure as a routine method to fuse L4–5 or L5–S1.

This article appears in HSS Journal: Volume 8, Number 2.
View the full article at springerlink.com.

About the HSS Journal

HSS Journal, an academic peer-reviewed journal published three times a year, February, July and October. The Journal accepts and publishes peer reviewed articles from around the world that contribute to the advancement of the knowledge of musculoskeletal diseases and disorders.

 

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