Differential segmental motion contribution of single- and two-level anterior cervical discectomy and fusion
Journal
European Spine Journal
Journal Volume
24
Journal Issue
12
Pages
2857-2865
Date Issued
2015
Author(s)
Abstract
Purpose: To determine and compare the biomechanical effects of single- and two-level anterior cervical decompression and fusion (ACDF) on the re-distribution of the segmental contribution to total cervical range of motion (ROM) in a prospective longitudinal design. Methods: Fifty-one patients undergoing either a single- or two-level ACDF due to cervical disc disease were recruited. Functional radiographs were taken preoperatively and then at 3, 6 and 12-month follow-ups. Global ROM of C2–C7, ROM of the treated functional spinal unit (FSU) and the superior and inferior segmental ROMs were then measured. The relative contribution from the FSU and each of the adjacent segments to total cervical ROM were compared pre- and post-operatively within and between the two groups at each of the time points. Results: Single-level ACDF patients demonstrated a significantly greater total cervical ROM at 6 and 12?months compared with the two-level ACDF group (p?=?0.021 and 0.045, respectively). A significantly greater contribution from the FSU to the total ROM was found at 3?months in the two-level ACDF group (p?=?0.016), but the greater contribution shifted to the superior adjacent segment at 6 and 12?months (p?=?0.025 and 0.046). The two-level ACDF group did not demonstrate a significant difference at 3?months (p?=?0.087), but a significant increase in contribution was found at 6 and 12?months (p?
SDGs
Other Subjects
adult; anterior cervical decompression and fusion; anterior spine fusion; Article; biomechanics; female; follow up; human; intervertebral disk disease; intervertebral diskectomy; longitudinal study; major clinical study; male; middle aged; outcome assessment; postoperative period; preoperative evaluation; priority journal; prospective study; range of motion; spinal cord decompression; surgical technique; cervical vertebra; decompression surgery; intervertebral diskectomy; joint characteristics and functions; procedures; radiography; spine fusion; surgery; Biomechanical Phenomena; Cervical Vertebrae; Decompression, Surgical; Diskectomy; Female; Humans; Longitudinal Studies; Male; Middle Aged; Prospective Studies; Range of Motion, Articular; Spinal Fusion
Publisher
Springer Verlag
Type
journal article