Minimally Invasive Anterior Longitudinal Ligament Release for Anterior Column Realignment.

Department

Neurosurgery

Document Type

Article

Abstract

Study Design: Review of the literature.

Objectives: Anterior column realignment (ACR) is a powerful but relatively new minimally invasive technique for deformity correction. The purpose of this study is to provide a literature review of the ACR surgical technique, reported outcomes, and future directions.

Methods: A review of the literature was performed regarding the ACR technique. A review of patients at our single center who underwent ACR was performed, with illustrative cases selected to demonstrate basic and nuanced aspects of the technique.

Results: Clinical and cadaveric studies report increases in segmental lordosis in the lumbar spine by 73%, approximately 10° to 33°, depending on the degree of posterior osteotomy and lordosis of the hyperlordosis interbody spacer. These corrections have been found to be associated with a similar risk profile compared with traditional surgical options, including a 30% to 43% risk of proximal junctional kyphosis in early studies.

Conclusions: ACR represents a powerful technique in the minimally invasive spinal surgeon's toolbox for treatment of complex adult spinal deformity. The technique is capable of significant sagittal plane correction; however, future research is necessary to ascertain the safety profile and long-term durability of ACR.

Publication Date

4-1-2020

Publication Title

Global Spine J

ISSN

2192-5682

Volume

10

Issue

2 Suppl

First Page

101

Last Page

101

PubMed ID

32528793

Digital Object Identifier (DOI)

10.1177/2192568219880178

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