Timing of Lateral Lumbar Interbody Subsidence: Review of Exclusive Intraoperative Subsidence.
Department
Neurosurgery
Document Type
Article
Abstract
BACKGROUND: All interbody fusions are associated with a risk of subsidence. In the case of lateral lumbar interbody fusion (LLIF), an interbody device that spans the apophyseal rings reduces subsidence. Small interbody device size, aggressive end plate preparation, and poor bone quality are contributors to subsidence. The goal of this study was to analyze the perioperative morbidity, particularly the timing of subsidence (intraoperative vs. postoperative), associated with transpsoas LLIF.
METHODS: A retrospective review of consecutive LLIF cases was performed. Perioperative complications were reviewed. Intraoperative fluoroscopy and postoperative radiography, computed tomography, and magnetic resonance imaging were reviewed.
RESULTS: Seventy-seven consecutive patients (39 men; mean [range] age, 66.2 [46-86] years) were identified. Subsidence occurred in 3 patients (4%) and was found to occur exclusively in the intraoperative setting. Anterior thigh paresthesias lasting longer than 24 hours occurred in 2 patients (3%). No femoral nerve injuries manifesting as weakness were observed. No visceral, vascular, or ureter injuries were identified.
CONCLUSIONS: As LLIF becomes more common, it is important to better understand common complications, such as subsidence, and the specific rates at which they occur. A unique finding of exclusive intraoperative subsidence was observed. The use of cage size to obtain segmental lordotic correction and indirect decompression must be weighed against the potential risk of subsidence.
Publication Date
5-1-2020
Publication Title
World Neurosurg
ISSN
1878-8769
Volume
137
First Page
208
Last Page
208
PubMed ID
31996333
Digital Object Identifier (DOI)
10.1016/j.wneu.2020.01.134
Recommended Citation
Wewel, Joshua T; Hartman, Cory; and Uribe, Juan S., "Timing of Lateral Lumbar Interbody Subsidence: Review of Exclusive Intraoperative Subsidence." (2020). Neurosurgery. 592.
https://scholar.barrowneuro.org/neurosurgery/592