• Yunus Atıcı, Ahmet Şenel, Saltuk Buğra Tekin, Mehmet Akif Aktaş, Barış Peker, and Barış Polat.
• Department of Orthopedics and Traumatology, Istanbul Training and Research Hospital, Istanbul, Turkey. Electronic address: yunatici2206@hotmail.com.
• World Neurosurg. 2023 Aug 1; 176: e686e691e686-e691.

ObjectiveIn this study, we aimed to retrospectively analyze the effects of the use of univertebral screw plates (USPs) and bivertebral screw plates (BSPs) on fusion in patients who underwent anterior cervical discectomy and fusion (ACDF).MethodsForty-two patients who were treated with USPs or BSPs after 1-level or 2-level ACDF and had a minimum follow-up period of 2 years were included in the study. Fusion and the global cervical lordosis angle were evaluated using direct radiographs and computed tomography images of the patients. The clinical outcomes were assessed using the Neck Disability Index and visual analog scale.ResultsSeventeen patients were treated using USPs and 25 patients using BSPs. Fusion was achieved in all patients who underwent BSP fixation (1-level ACDF, 15 patients; 2-level ACDF, 10 patients) and 16 of the 17 patients who underwent USP fixation (1-level ACDF, 11 patients; 2-level ACDF, 6 patients). The plate of the patient with fixation failure had to be removed because it was symptomatic. A statistically significant improvement was observed in the immediate postoperative period and at the last follow-up in terms of global cervical lordosis angle, visual analog scale score, and Neck Disability Index of all patients who underwent 1-level or 2-level ACDF surgery (P < 0.05) CONCLUSIONS: Although USPs are less costly and easier to implant, the effect of USPs and BSPs on fusion and clinical outcomes is similar. Thus, surgeons may prefer to use USPs after 1-level or 2-level ACDF.Copyright © 2023 Elsevier Inc. All rights reserved.

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