Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (34): 5418-5424.doi: 10.3969/j.issn.2095-4344.1933

Previous Articles     Next Articles

Relationship between different types of interbody fusion cage and vertebral endplate injury in oblique lateral lumbar interbody fusion

Zheng Xiaoqing, Yin Dong, Gu Honglin, Liang Guoyan, Chang Yunbing   

  1. Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510000, Guangdong Province, China

  • Received:2019-07-09 Online:2019-12-08 Published:2019-12-08
  • Contact: Chang Yunbing, MD, Chief physician, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510000, Guangdong Province, China
  • About author:Zheng Xiaoqing, Master, Attending physician, Guangdong Provincial People’s Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510000, Guangdong Province, China
  • Supported by:

    Trauma Repair Program of Major Disease Prevention and Control Science and Technology Planning Project, No. 2018ZX-01S-002 (to YD)

Abstract:

BACKGROUND: The characteristics of oblique lateral lumbar interbody fusion are large interbody fusion cage, large bone contact surface and large bone grafting window, leading to strong intervertebral stability, low risk of subsidence, and high intervertebral fusion rate. These advantages make this procedure popular in the clinic. At present, there is no specific report regarding the effects of the relationship between different types of interbody fusion cage and vertebral endplate injury in oblique lateral lumbar interbody fusion on postoperative imaging.
OBJECTIVE: To investigate the relationship between different types of interbody fusion cage and vertebral endplate injury in oblique lateral lumbar interbody fusion as well as its effect on postoperative imaging, which can help select the model of clinical cages.
METHODS: A retrospective analysis of 49 patients undergoing oblique lateral lumbar interbody fusion in a single segment from January 2018 to January 2019 was performed. All patients provided written informed consent and this study was approved by the Medical Ethics Committee of Guangdong Provincial People’s Hospital. Patient’s imaging data and clinical data were collected and the relationship between intervertebral cages of different heights, widths and lengths with vertebral endplate injuries of surgical segments was analyzed. The effects of intervertebral cages of different heights, widths and lengths on intervertebral space height and intervertebral posterior margin height were analyzed and the effects of the relationship on postoperative imaging were evaluated. The effects of endplate injury on Visual Analogue Scale and Oswestry Disability Index were analyzed, and the clinical effects were evaluated.
RESULTS AND CONCLUSION: In the oblique lateral lumbar interbody fusion, the height of the interbody cage used in the endplate injury was significantly higher than that in the non-injured, suggesting that the height of the interbody cage was related to endplate injury (P < 0.05). The  22 mm wide interbody cage was more ideal than the 18 mm wide one in intervertebral posterior margin height distraction, suggesting that the wider interbody cage had better postoperative imaging efficacy (P < 0.05). There was no significant correlation between the length and width of the interbody cage with intraoperative endplate injury, and the difference was not statistically significant (P > 0.05). The height and length of the interbody cage had no significant effect on the vertebral space height and the intervertebral posterior margin height (P > 0.05). The endplate injury had no significant effect on the Visual Analogue Scale and Oswestry Disability Index scores (P > 0.05). 81.8% of endplate injuries occurred in the upper endplate of the lower vertebral body. These results show that the higher the height of the interbody cage, the easier the endplate is injured and more common in the upper endplate. The wider the cage to open the posterior margin of the intervertebral space is more advantageous. Two important parameters, height and width, should be taken into account in the selection of the interbody fusion cage.

Key words: endplate injury, interbody fusion cage, height of posterior margin of intervertebral space, height of intervertebral space, width, height, length, interbody fusion

CLC Number: