Screw placement accuracy for minimally invasive transforaminal lumbar interbody fusion surgery: a study on 3-d neuronavigation-guided surgery.
| 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 |