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


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


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.