Publication Type Academic Article
Authors Torres J, James A, Alimi M, Tsiouris A, Geannette C, Härtl R
Journal Global Spine J
Volume 2
Issue 3
Pagination 143-52
Date Published 09/01/2012
ISSN 2192-5682
Abstract PurposeThe aim of this study was to assess the impact of 3-D navigation for pedicle screw placement accuracy in minimally invasive transverse lumbar interbody fusion (MIS-TLIF). MethodsA retrospective review of 52 patients who had MIS-TLIF assisted with 3D navigation is presented. Clinical outcomes were assessed with the Oswestry Disability Index (ODI), Visual Analog Scales (VAS), and MacNab scores. Radiographic outcomes were assessed using X-rays and thin-slice computed tomography. ResultThe mean age was 56.5 years, and 172 screws were implanted with 16 pedicle breaches (91.0% accuracy rate). Radiographic fusion rate at a mean follow-up of 15.6 months was 87.23%. No revision surgeries were required. The mean improvement in the VAS back pain, VAS leg pain, and ODI at 11.3 months follow-up was 4.3, 4.5, and 26.8 points, respectively. At last follow-up the mean postoperative disc height gain was 4.92 mm and the mean postoperative disc angle gain was 2.79 degrees. At L5-S1 level, there was a significant correlation between a greater disc space height gain and a lower VAS leg score. ConclusionOur data support that application of 3-D navigation in MIS-TLIF is associated with a high level of accuracy in the pedicle screw placement.
DOI 10.1055/s-0032-1326949
PubMed ID 24353961
PubMed Central ID PMC3864504
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