Clinical Effect of Anterior Disc Excision with Bone Graft Fusion and Bryan Artificial Cervical Disc Replacement

CHEN Kun; CAI Hui-min; CHEN Rong-zi

Abstract：Objective To study the immediate and long-term efficacy of anterior cervical decompression and fusion( AC-DF)and artificial cervical disc replacement( ACDR)in the treatment of cervical myelopathic spondylosis and cervical spondy-losis of nerve root type. Methods We systematically analyzed data of 70 cases(70 segments)of patients with cervical spondy-lotic myelopathy and nerve-root type cervical spondylosis who were hospitalized from November 2008 to November 2010. They were randomly divided into ACDF group(35 cases)and Bryan group(35 cases)by random number table method. We observed the differences of index by the analysis of odom′s,ROM,JOA,SF-36 and NDI at before and the follow-up of 12 months after operation. We simultaneously compared the indicators at the follow-up of 12 months between the two groups,compared the cur-ative effect,and analyzed the advantages of the two kinds of operation methods and the problems they caused. Results The two operation method could achieve definite curative effect ,the symptoms were significantly alleviated after treatment( P <0. 05). Both operation methods had no significant differences in trauma,bleeding volume and so on(P>0. 05). JOA score and SF-36 scale had no significant differences(P>0. 05). There was difference between ROM and NDI in the evaluation of 12 month follow-up. Data of Bryan group were better than ACDF group(P<0. 05). Conclusion Bryan artificial cervical disc re-placement(ACDR)is superior to the anterior cervical decompression and fusion(ACDF)in reducing the adjacent segment degeneration of cervical vertebra. Its short-term and mid-term curative effect is superior to the ACDF. But Bryan artificial cervi-cal disc replacement( ACDR)coexist the complications such as incomplete decompression and heterotopic ossification,the long-term curative effect is inferior than ACDF.