J Korean Soc Spine Surg.  2019 Dec;26(4):126-131. 10.4184/jkss.2019.26.4.126.

Comparative Measurements of Preoperative and Postoperative Radiological and Clinical Parameters of Direct Lumbar Interbody Fusion in Degenerative Spinal Disease Patients

• Kim WJ
• Hong YC
• Soh JW
• Kim CH
• Jang H
• Hong CH

• KMID: 2467941
• DOI: http://doi.org/10.4184/jkss.2019.26.4.126

Abstract

STUDY DESIGN: Retrospective study of prospectively-collected data.
OBJECTIVES
To evaluate the radiological outcomes of direct lateral lumbar interbody fusion (DLIF). SUMMARY OF LITERATURE REVIEW: DLIF, as a minimally invasive spinal surgical procedure, is useful for degenerative spinal diseases. However, few reports have evaluated the clinical and radiological outcomes of DLIF in Korea.
MATERIALS AND METHODS
We analyzed 44 patients who underwent DLIF at our hospital from September 2015 to September 2017. Of these patients, 89 segments were included in this study. We measured preoperative and postoperative radiological values including the disc height, central canal area, height of the foramen, and segmental sagittal angle on magnetic resonance imaging. We also measured patients' visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores as clinical parameters.
RESULTS
Statistically significant improvements were found in the height of the left and right foramina (20.8% and 25.6%, respectively), the height of the intervertebral discs (86.0% and 84.3%, respectively), the cross-sectional area of the central nervous system (33.1%), lumbar lordosis, and the lumbar segmental angle (2.7° and 8.7°, respectively) after surgery. The VAS and ODI scores also showed significant improvements (65.7% and 67.7%, respectively) when compared with the preoperative level.
CONCLUSIONS
DLIF was found to be effective for the treatment of diseases such as foraminal stenosis, degenerative spondylolisthesis, and adjacent segment diseases through indirect neuro-decompression of the bilateral foramina and central vertebrae.

Keyword

Spinal stenosis; Spinal fusion; Direct lateral lumbar interbody fusion

MeSH Terms

Animals
Central Nervous System
Constriction, Pathologic
Humans
Intervertebral Disc
Korea
Lordosis
Magnetic Resonance Imaging
Retrospective Studies
Spinal Diseases*
Spinal Fusion
Spinal Stenosis
Spine
Spondylolisthesis

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