Radiological parameters after LLIF for adjacent-level disease treatment

Abstract

OBJECTIVE: To analyze the radiological outcomes of using the LLIF technique to treat adjacent-level disease. METHODS: Patients undergoing LLIF surgery for treatment of adjacent level disease, with preoperative radiography and postoperative radiography at 3 months to 1 year of follow-up, who had completed the informed consent form were included. Patients whose radiographs did not allow the measurements proposed in the study to be performed were excluded. The following outcomes were analyzed: pelvic incidence, pelvic version, sacral tilt, lumbar lordosis, and adjacent-level segmental lordosis on preoperative and postoperative radiographs. RESULTS: 37 patients were included in the study (16 women and 21 men) were included in this study. The most frequently addressed levels were L3L4 (20) and L2L3 (14). Patients had an average of 4.9° (±4.2°) segmental lordosis gain at the addressed level, whereas they had an average of 6.7° (±7.3°) lumbar lordosis correction (p<0.05). CONCLUSION: The use of the LLIF technique for the treatment of adjacent-level disease can significantly improve several spinopelvic parameters and segmental lordosis.