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Retrospective Case Control Study: Clinical and Computer Tomographic Fusion and Subsidence Evaluation for Single Level Uniportal Endoscopic Posterolateral Approach Transforaminal Lumbar Interbody Fusion Versus Microscopic Minimally Invasive Transforaminal Interbody Fusion

Study Design: Retrospective comparative study. Objective: Assessment of difference in clinical and computer tomographic outcomes between the 2 cohorts. Methods: Computer tomographic evaluation by Bridwell’s grade, Kim’s stage, Kim’s subsidence grade and clinical evaluation by VAS, ODI and McNab’s cr...

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Bibliographic Details
Published in:Global spine journal 2023-03, Vol.13 (2), p.304-315
Main Authors: Kim, Hyeun Sung, Wu, Pang Hung, Kim, Ji Yeon, Lee, Jun Hyung, Lee, Yeon Jin, Kim, Dae Hwan, Jeon, Jun Bok, Jang, Il-Tae
Format: Article
Language:English
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Summary:Study Design: Retrospective comparative study. Objective: Assessment of difference in clinical and computer tomographic outcomes between the 2 cohorts. Methods: Computer tomographic evaluation by Bridwell’s grade, Kim’s stage, Kim’s subsidence grade and clinical evaluation by VAS, ODI and McNab’s criteria on both cohorts. Results: 33 levels of Endo-TLIF and 22 levels of TLIF were included, with a mean follow up of 14.3 (10-24) and 22.9 (13-30) months respectively. Both Endo-TLIF and TLIF achieved significant improvement of pain and ODI at post-operative 4 week, 3 months and at final follow up with VAS 4.39 ± 0.92, 5.27 ± 1.16 and 5.73 ± 1.21in Endo-TLIF and 4.55 ± 1.16, 5.05 ± 1.11 and 5.50 ± 1.20 in TLIF respectively and ODI at post-operative 1 week, 3 months and final follow up were 43.15 ± 6.57, 49.27 ± 8.24 and 51.73 ± 9.09 in Endo-TLIF and 41.73 ± 7.98, 46.18± 8.46 and 49.09 ± 8.98 in TLIF respectively, P < 0.05. Compared to TLIF, Endo-TLIF achieved better VAS with 0.727 ± 0.235 at 3 months and 0.727 ± 0.252 at final follow up and better ODI with 3.88 ± 1.50 at 3months and 3.42 ± 1.63 at final follow up, P < 0.05. At 6 months radiological evaluation comparison of the Endo-TLIF and TLIF showed significant with more favorable fusion rate in Endo-TLIF of −0.61 ± 0.12 at 6 months and −0.49 ± 0.12 at 1 year in Bridwell’s grading and 0.70 ± 0.15 at 6 months and 0.56 ± 0.14 at 1 year in Kim’s stage.There is less subsidence of 0.606 ± 0.18 at 6 months and −0.561 ± 0.20 at 1 year of Kim’s subsidence grade, P < 0.05. Conclusion: Application of single level uniportal endoscopic posterolateral lumbar interbody fusion achieved better clinical outcomes and fusion rate with less subsidence than microscopic minimally invasive transforaminal lumbar interbody fusion in mid-term evaluation for our cohorts of patients.
ISSN:2192-5682
2192-5690
DOI:10.1177/2192568221994796