Comparison of 1-Level Versus 2-Level Anterior Cervical Discectomy and Fusion: Clinical and Radiographic Follow-Up at 60 Months.

Study Design: This study represents a posthoc analysis of data collected from 2 control arms of a prospective, randomized study.

Objective: The purpose of this study was to compare results of patients undergoing 1- versus 2-level anterior cervical discectomy and fusion (ACDF).

Summary Of Background Data: For single-level ACDF, reported outcomes have generally been good; however, results for 2 levels have been less consistent.