Radiographic results of single level transforaminal lumbar interbody fusion in degenerative lumbar spine disease: focusing on changes of segmental lordosis in fusion segment.
BACKGROUND
To 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.


METHODS
Twenty 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.


RESULTS
The 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.


CONCLUSIONS
When performing TLIF, careful surgical techniques and attention are needed to restore and maintain the segmental lordosis at the fusion level.
Kim
Sang-Bum
SB
Department of Orthopaedic Surgery, Konyang Universitiy College of Medicine, Daejeon, Korea.
Jeon
Taek-Soo
TS
Heo
Youn-Moo
YM
Lee
Woo-Suk
WS
Yi
Jin-Woong
JW
Kim
Tae-Kyun
TK
Hwang
Cheol-Mog
CM
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D055959:Intervertebral Disc Degeneration / Q000601:surgery*; D008141:Lordosis / Q000000981:diagnostic imaging*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D019919:Prosthesis Implantation; D011859:Radiography; D012189:Retrospective Studies; D013123:Spinal Fusion; D013130:Spinal Stenosis / Q000601:surgery; D013168:Spondylolisthesis / Q000601:surgery