Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (16): 2511-2515.doi: 10.3969/j.issn.2095-4344.1208

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Imaging evaluation of Zero-P interbody fixation and fusion system versus titanium plate with cage interbody fixation and fusion system for treating cervical disc herniation   

Wang Feng, Long Yaowu, Zhao Rui, Yuan Zhirui, Zhao Xiaodong   

  1. Department of Spine Surgery, Foshan Chancheng Central Hospital, Foshan 528031, Guangdong Province, China
  • Online:2019-06-08 Published:2019-06-08
  • About author:Wang Feng, Master, Associate chief physician, Department of Spine Surgery, Foshan Chancheng Central Hospital, Foshan 528031, Guangdong Province, China

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Abstract:

BACKGROUND: Anterior cervical discectomy and decompression, and fusion for treating cervical disc herniation have significant effects, but there are shortcomings such as cervical instability and low fusion rate. Titanium plate with cage interbody fixation and fusion system can make up for these shortcomings, but there are still some common complications. A new Zero-P interbody fixation and fusion system with support and fixation function is widely used in clinical practice.

OBJECTIVE: To compare the clinical effect of a new Zero-P interbody fixation and fusion system and titanium plate with cage interbody fixation and fusion system for treating cervical disc herniation.
METHODS: Clinical data of 42 patients with single-segment cervical spondylosis admitted at Foshan Chancheng Central Hospital from January 2016 to June 2017 were analyzed retrospectively. According to the surgical method, 21 cases were treated with Zero-P interbody fixation and fusion system (Zero-P group) and 21 cases with titanium plate with cage interbody fixation and fusion system (titanium plate group). The operation time, intraoperative blood loss, Japanese Orthopaedic Association score and improvement rate, dysphagia, Cobb angle, and height and increase rate of the fused segment were compared between two groups.
RESULTS AND CONCLUSION: (1) There was no significant difference in the intraoperative blood loss between two groups (P > 0.05), and the operation time in the Zero-P group was significantly shorter than that in the titanium plate group (P < 0.05). (2) The Japanese Orthopaedic Association scores in the two groups were significantly increased at 3, 6 and 18 months postoperatively (P < 0.05), and no significant difference was found in the scores and score improvement rate between two groups at the same follow-up time (P > 0.05). (3) Two patients (10%) in the titanium plate group developed mild dysphagia at 6 months after surgery, while the symptoms of dysphagia in the Zero-P group disappeared. There was still one case (5%) of mild dysphagia in the titanium plate group at postoperative 18 months. (4) The Cobb angle in the Zero-P group was significantly different from the titanium plate group at 3, 6 and 18 months postoperatively (P < 0.05). (5) There was no significant difference in the rate of height increase between two groups at 3 months postoperatively (P > 0.05). There was a significant difference in the rate of intervertebral height between two groups postoperative at postoperative 6 and 18 months (P < 0.05). (6) To conclude, Zero-P interbody fixation and fusion system and titanium plate with cage interbody fixation and fusion system for treating cervical disc herniation both can achieve good results. However, Zero-P interbody fixation and fusion system is more conducive to maintaining cervical curvature and intervertebral height, and reducing the incidence of postoperative dysphagia.

Key words: cervical spondylosis, intervertebral disc herniation, anterior cervical approach, Zero-P interbody fusion, titanium plate with cage, internal fixation, height of the fused segment, cervical curvature

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