Original Research - Spine
INTRODUCTION: Extraforaminal lumbar interbody fusion (ELIF) avoids vascular, neural, and genitourinary risks of anterior and lateral techniques. However, many authors consider ELIF to be contraindicated in L5-S1, especially in the case of a collapsed space. Therefore, we aim to provide a technical note for ELIF in the context of an L5-S1 collapsed space and present our experience and the postoperative clinical results of our patients. MATERIALS AND METHODS: We collected data from the records of patients with ELIF L5-S1 level collapsed between March 2020 to June 2021, using for this study sex, age, clinical symptoms, diagnosis, L5-S1 height space, EVA, and ODI pre and post-surgery. This observational report follows the STROBE reporting guidelines. RESULTS: We collected information from 29 patient files with ELIF L5-S1 collapsed level; 55% were women, with an average age of 53.9 years. The mean height L5-S1 pre-surgery was 5.23mm, mean height post-op L5-S1 was 11.38 mm. The mean preoperative Oswestry disability scale score was 42.28, and the mean 1-month postoperative was 15.65. Mean VAS pre-surgery was 8.51 mm, mean VAS post-op 2.41. None of our patients presented neurological, genitourinary, or vascular complications.
DISCUSSION: The data found in this work show that the ELIF technique can statistically modify the height of the L5-S1 interbody space. Additionally, the Oswestry disability index and pain in VAS can be statistically improved. Our data support that ELIF is suitable for collapsed L5-S1 spaces with low complication rates than other approaches. CONCLUSION: Extraforaminal lumbar interbody fusion is a feasible and safe alternative for restoring the L5-S1 disc height with clinical improvement and significant pain control by the use of intradiscal working tubes and bullet-shaped cages,
MAIN MANUSCRIPT DOCX; COVER LETTER; TITLE PAGE; ABSTRACT; KEYWORDS; ABBREVIATIONS; HIGHLIGHTS; AUTHOR DISCLOSURES; STATEMENT OF ADHERENCE TO REPORTING GUIDELINES; MANUSCRIPT; BACKGROUND; OBJECTIVE; RESULTS; DISCUSSION; CONCLUSIONS; TABLE LEGENDS; FIGURE LEGENDS; REPORTING GUIDELINES CHECKLIST; AKNOWLEDGEMENTS DOCX; REPORTING GUIDELINES FLOWCHART (IF NEEDED) PPTX; TABLES PPTX; FIGURES PPTX
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Tatiana Montes González, Iris; Soriano Solis, Sergio; Eduardo Soto García, Manuel; Rodríguez García, Manuel; Reyes Rodríguez., Gerson; David López García, Víctor; and Antonio Soriano Sánchez, José
"L5-S1 Collapsed Space Is Not A Contraindication For ELIF. Technical Note And Preliminary Clinical Results,"
Archives of Neurosurgery: Vol. 1:
2, Article 8.
Available at: https://www.ansjournal.org/home/vol1/iss2/8