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Clinical effects of the bridge-type ROI-C interbody fusion cage system in the treatment of cervical spondylosis with osteoporosis

Authors Rong Y, Luo Y, Liu W, Gong F, Tang P, Cai W

Received 7 August 2018

Accepted for publication 24 October 2018

Published 14 December 2018 Volume 2018:13 Pages 2543—2551


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Zhi-Ying Wu

Yuluo Rong,* Yongjun Luo,* Wei Liu, Fangyi Gong, Pengyu Tang, Weihua Cai

Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China

*These authors contributed equally to this work

Objective: To investigate the early and mid-term efficacy and safety of the bridge-type ROI-C interbody fusion cage system in the treatment of cervical spondylosis with osteoporosis during anterior cervical discectomy and fusion (ACDF).
Patients and methods: The clinical data from 24 cervical spondylosis patients with osteoporosis treated with ACDF were retrospectively analyzed. All patients were treated with ROI-C cage. Double-energy X-ray absorptiometry (DEXA) was used to measure the bone mineral density (BMD). The cervical sagittal radiographic parameters were measured and compared using X-ray including C2–C7 Cobb angle, segmental angle (SA), cervical vertebral bow depth, and height of operation segment (HOS). Postoperative dysphagia was recorded according to the Bazaz score. The Japanese Orthopedic Association (JOA) scores and Neck Disability Index (NDI) scores were used to evaluate the clinical outcomes at different time points. Odom and Vaccaro criteria were used to assess the surgical effects and to evaluate the fusion of the bone graft.
Results: The mean duration of the postoperative follow-up was 27.4±5.7 months (ranging from 21 to 36 months). The JOA scores and NDI scores at 3 months post operation and at the time of final follow-up were significantly different from those before surgery (P<0.05). Two patients had mild dysphagia after surgery, but it disappeared after symptomatic treatment for 3–5 days. Sagittal radiographic outcomes were significantly improved at 3 months post operation (P<0.05). At the time of final follow-up, the radiographic parameters were well maintained and were not significantly different compared with 3 months post operation (P>0.05).
Conclusion: The ROI-C cage system is safe and effective for use in patients undergoing anterior cervical spondylosis surgery for osteoporosis treatment. It results in a positive effect on bone graft fusion, is able to effectively improve cervical curvature, restores intervertebral height, and reduces the incidence of postoperative dysphagia. The clinical effects were positive at the early and middle postoperative stages.

Keywords: cervical spondylosis, ROI-C, osteoporosis, imaging parameters, dysphagia

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