Segmental coupling effects during correction of three-dimensional lumbar deformity using lateral lumbar interbody fusion

Purpose Lateral lumbar interbody fusion (LLIF) has been performed to correct spinal deformity associated with lumbar degenerative disease. Although its usefulness has been studied, there are no reports of quantitative evaluation in three dimensions. Our purpose is to quantitate 3D deformity of the p...

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Bibliographic Details
Published in:European spine journal 2020-04, Vol.29 (4), p.879-885
Main Authors: Yamaguchi, Hiroto, Nojiri, Hidetoshi, Miyagawa, Kei, Inoue, Nozomu, Kaneko, Kazuo
Format: Article
Language:English
Subjects:
Degenerative disc disease
Intervertebral discs
Medicine
Medicine & Public Health
Neurosurgery
Original Article
Patients
Spine (lumbar)
Surgery
Surgical Orthopedics
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Summary:Purpose Lateral lumbar interbody fusion (LLIF) has been performed to correct spinal deformity associated with lumbar degenerative disease. Although its usefulness has been studied, there are no reports of quantitative evaluation in three dimensions. Our purpose is to quantitate 3D deformity of the patients with lumbar degenerative disease and correction of the deformity by LLIF using patient-specific 3D CT models. Methods We measured the disc height and 3D alignment of the lumbar spine in 28 patients with degenerative disease undergoing LLIF using patient-specific 3D CT models created preoperatively and 3 months after surgery. The 3D alignment was calculated as wedge, lordosis and axial rotation angles at each motion segment. The disc height and the rotational angles were compared between before and after LLIF. Results A strong positive correlation was found between the wedge angle and the axial rotation angles ( r  = 0.718, P  
ISSN:0940-6719
1432-0932
DOI:10.1007/s00586-020-06310-0