,PROCEDURES:,  C5-C6 and C6-C7 anterior cervical discectomy (two levels) C5-C6 and C6-C7 allograft fusions. 
,PROCEDURES : , C5 - C6 and C6 - C7 anterior cervical discectomy ( two levels ) C5 - C6 and C6 - C7 allograft fusions .