Stand-Alone Lateral Interbody Fusion for the Treatment of Low-Grade Degenerative Spondylolisthesis

Hindawi Limited - Tập 2012 - Trang 1-7 - 2012
Luís Marchi1,2, Nitamar Abdala1, Leonardo Oliveira2, Rodrigo Amaral2, Etevaldo Coutinho2, Luiz Pimenta2,3
1Department of Imaging Diagnosis, Universidade Federal de São Paulo, São Paulo, SP 04024-002, Brazil
2Department of Minimally Invasive Surgery, Instituto de Patologia da Coluna, São Paulo, SP 04101-000, Brazil
3Department of Neurosurgery UCSD San Diego, San Diego, CA 92103, USA

Tóm tắt

The purpose of this paper was to investigate the stand-alone lateral interbody fusion as a minimally invasive option for the treatment of low-grade degenerative spondylolisthesis with a minimum 24-month followup. Prospective nonrandomized observational single-center study. 52 consecutive patients (67.6±10 y/o; 73.1% female;27.4±3.4 BMI) with single-level grade I/II single-level degenerative spondylolisthesis without significant spine instability were included. Fusion procedures were performed as retroperitoneal lateral transpsoas interbody fusions without screw supplementation. The procedures were performed in average 73.2 minutes and with less than 50cc blood loss. VAS and Oswestry scores showed lasting improvements in clinical outcomes (60% and 54.5% change, resp.). The vertebral slippage was reduced in 90.4% of cases from mean values of 15.1% preoperatively to 7.4% at 6-week followup (P<0.001) and was maintained through 24 months (7.1%,P<0.001). Segmental lordosis (P<0.001) and disc height (P<0.001) were improved in postop evaluations. Cage subsidence occurred in 9/52 cases (17%) and 7/52 cases (13%) spine levels needed revision surgery. At the 24-month evaluation, solid fusion was observed in 86.5% of the levels treated. The minimally invasive lateral approach has been shown to be a safe and reproducible technique to treat low-grade degenerative spondylolisthesis.

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Hindawi Limited

Tập 2012

1-7

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