Evaluation Of Neck Motor Function After DISCOVER Cervical Artificial Disc Replacement Surgery And Clinical Effect

Objection: Explore the clinical efficacy of the Discover cervical artificial discreplacement for the treatment of cervical spondylosis replacement segment,information of activity reservations, information of curvature to maintain, informationof maintain cervical overall activity (range of motion, ROM), and postoperative neckaxial symptoms. Then contrastive analysis DISCOVER cervical artificial discreplacement surgery and traditional anterior cervical decompression and interbodyfusion.Methods: Selected application Discover cervical artificial disc replacement surgery inpatients20casesduring July2009to December2010, In the same period20cases ofcervical patients underwent anterior cervical discectomy and decompression andfusion with internal fixation (fusion group), After1week,3months,6months,12months,24months follow-up, shooting in every follow-up cervical flexion, extension,left and right lateral flexion-bit X-ray observation of the prosthesis replacement groupthe stability of the replacement segment of the activity and the group of fusionsegments of bone fusion and so on. Observe the recovery of nerve function in the twogroups of patients, surgery segmental cervical lordosis, cervical overall activitychanges, neck axial symptoms occur, and a comparative analysis.Results: The patients were followed up3to24months, with an average of18.6months. Two groups of patients with surgery and postoperative were no seriouscomplications occurred. Prosthesis displacement, loss and other complications afterreplacement group; X-ray films showed grafting all of the bone fusion rate was100%in fusion group after6months, there no complication, falling, breaking, etc..①The clinical symptoms were significantly alleviated in the two sets of nerve rootcervical spondylosis patients were followed up, the results were satisfactory. Two setsof patients with cervical spinal cord compared with preoperative JOA score of postoperative follow-up significantly increased (P <0.01); the two groups comparedpreoperative and end of the follow-up period showed no significant difference (P>0.05).②20cases of the replacement group patients with replacement segmentaverage degree (6.87±0.38)°, compared with the preoperative (7.31±0.33)°, no statistically significant difference (P>0.05).③Adjacent segment flexionextension replacement group before and after surgery, no significant differences in thescope of activities (P>0.05), while the fusion group of the difference was statisticallysignificant (P <0.05), postoperative activity increased significantly in the group aftersurgery.④replacement group preoperative ROM (45.3±11.5)°, the end offollow-up period (43.5±13.8)°, the difference was no statistically significant (P>0.05); fusion preoperative ROM (48.9±14.2)°, the follow-up end of the period (36.3±10.7)°, the difference was statistically significant (P <0.05). Replacement groupbefore and after surgery the difference was no statistically significant (P>0.05), thefusion group, postoperative ROM decreased significantly (P <0.01).⑤Theincidence of postoperative neck AS in replacement group was16.3%, the fusion groupwas45.7%, the difference was statistically significant (P <0.05).Conclusion: Compared with traditional anterior decompression fusion surgery, thetreatment of cervical disease in Discover cervical artificial disc replacement surgery atthe same time to achieve a satisfactory clinical efficacy and preserve the activity ofthe replacement segment at the same time, and to avoid replacement after upper andlower adjacent segmentincrease of the activity, to avoid the reduction of thepostoperative cervical overall activity (ROM) to maintain the curvature of the surgerysection, reducing the occurrence of postoperative neck AS.