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A morphometric analysis of contralateral neural foramen in TLIF

 Pyung Goo Cho  ;  Sang Hyuk Park  ;  Keung Nyun Kim  ;  Yoon Ha  ;  Do Heum Yoon  ;  Dong Ah Shin 
 European Spine Journal, Vol.24(4) : 783-790, 2015 
Journal Title
 European Spine Journal 
Issue Date
STUDY DESIGN: A retrospective review PURPOSE: This study was designed to compare postoperative changes in neural foramen between transforaminal lumbar interbody fusion (TLIF) and posterior lumbar interbody fusion (PLIF). METHODS: A retrospective analysis of 67 patients was compared to the change of neural foraminal morphometry of the two techniques. 33 patients (40 levels) had TLIF and 34 patients (39 levels) had PLIF. The two groups had similar demographic profiles. Radiological parameters including anterior and posterior disc height, foraminal height (FH), and segmental Cobb angle (SCA) were measured by sagittally reconstructed computed tomography images before and after surgery. Cage position was designated as contralateral, middle, and ipsilateral in the TLIF group. Surgical results were assessed by Odom criteria, visual analog scale (VAS), and Oswestry disability index (ODI) scores. RESULTS: The TLIF and PLIF group showed no bilateral difference in FH. The TLIF group had increased contralateral SCA compared to the ipsilateral side postoperatively. FH differed according to cage position in the TLIF group. When a cage was inserted deeply into the contralateral side, contralateral FH increased significantly. However, when a cage was inserted into the ipsilateral side, contralateral FH decreased significantly. Back pain was significantly lower in the TLIF group at 1 and 6 months than in the PLIF group. However, ODI and Odom scale scores were not different between the groups. CONCLUSIONS: TLIF may induce uneven changes in foraminal morphometry. Cage position may be the major determinant of this result.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
김긍년(Kim, Keung Nyun)
박상혁(Park, Sang Hyuk)
신동아(Shin, Dong Ah) ORCID logo https://orcid.org/0000-0002-5225-4083
윤도흠(Yoon, Do Heum) ORCID logo https://orcid.org/0000-0003-1452-5724
조평구(Cho, Pyung Goo)
하윤(Ha, Yoon)
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