206 - Application and Clinical Observe of Cervical Arthroplasty Using Mobi-C...

#206 Application and Clinical Observe of Cervical Arthroplasty Using Mobi-C for Cervicalspondylotic Radiculopathy

Cervical Therapies and Outcomes

Poster Presented by: D. Jin

Author(s):

D. Jin (1)
Q. Li (1)
Z. Zhang (1)
H. Yan (1)
G. Yin (1)

(1) The Third Affiliated Hospita of Southern Medical University, Department of Orthopaedics, Guangzhou, China

Abstract

Purpose: To investigate the feasibility and clinical effectiveness of Mobi-C used in the cervical total disc arthroplasty for cervicalspondylotic radiculopathy.

Methods: The same artificial disc (Mobi-C artificial cervical disc, LDR, France)is implanted for 67 patient with the same implantation technique.Clinical outcome measurements and dynamic cervical spine X-rays were obtained 3 monthes, 6 monthes and 12 months postoperation for each patient. X-rays were interpreted by an independent radiologists who was blinded from the clinical data of patients.The short form-36 physical component summary (SF-36) and VAS score was evaluated preoperatively and 3 days, 3 monthes, 6 monthes and 1 year after surgery the recovery of neurofunctional condition and clinical effectiveness . Antero-posterior and flexion-extension position radiography was taken to survey the interspinal height and range of motion of operated levels and the incidence of HO (heterotopic ossification).

Results: 51 cases were followed up, 16 cases lossed follow up,average follow-up 23.7 months(18~37 months). All of patients had obvious clinical improvement. There are significant statistically between the prepreoperative and postoperative short form-36 physical component summary on six item and VAS score (P< 0.05). The average VAS cervical pain scores decreased form preoperative 4.57±0.37 to postoperative 2. 01±0.51, VAS arm pain scores decreased form preoperative 6.51±0.43 to postoperative 1.32±0.37. The interspinal height increased from preoperative (6.5±1.1)mm to postoperative eventually follow-up (7.7±0.9)mm, there are significant difference (P>0.05). ROM increased from preoperative7.3°±3.5° to postoperative eventually follow-up 8.1°±3.2°, there are no significant difference (P< 0.05). There was no other complications related to operation except 24 (47.1%) cases with heterotopic ossifications (according to McAfee classification, ClassⅠ17 case,ClassⅡ 7case) 1 year after operation, but there are no according clinical symptom among of them.

Conclusions: The treatment of anterior cervical arthroplasty using Mobi-C for cervicalspondylotic radiculopathy is able to improve neurofunctional condition and clinical symptom effectively , as well as to retrieve and maintain the ROM of cervical and interspinal height and cervical physiological radian effectively, Besides, the short term curative effect is satisfactory.