• Sang-Bum Kim, Taek-Soo Jeon, Youn-Moo Heo, Woo-Suk Lee, Jin-Woong Yi, Tae-Kyun Kim, and Cheol-Mog Hwang.
• Department of Orthopaedic Surgery, Konyang Universitiy College of Medicine, Daejeon, Korea.
• Clin Orthop Surg. 2009 Dec 1; 1 (4): 207-13.

BackgroundTo assess the radiographic results in patients who underwent transforaminal lumbar interbody fusion (TLIF), particularly the changes in segmental lordosis in the fusion segment, whole lumbar lordosis and disc height.MethodsTwenty six cases of single-level TLIF in degenerative lumbar diseases were analyzed. The changes in segmental lordosis, whole lumbar lordosis, and disc height were evaluated before surgery, after surgery and at the final follow-up.ResultsThe segmental lordosis increased significantly after surgery but decreased at the final follow-up. Compared to the preoperative values, the segmental lordosis did not change significantly at the final follow-up. Whole lumbar lordosis at the final follow-up was significantly higher than the preoperative values. The disc height was significantly higher in after surgery than before surgery (p = 0.000) and the disc height alter surgery and at the final follow-up was similar.ConclusionsWhen performing TLIF, careful surgical techniques and attention are needed to restore and maintain the segmental lordosis at the fusion level.

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