{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T15:21:47Z","timestamp":1784647307729,"version":"3.55.0"},"reference-count":24,"publisher":"Begell House","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Long Term Eff Med Implants"],"published-print":{"date-parts":[[2023]]},"abstract":"<p>One of the standard treatments for spinal diseases is anterior cervical discectomy and fusion (ACDF). ACDF is a secure and successful operation that prevents patients to improve their pain and function. The mechanical goal of the ACDF is to prevent motion between adjoining vertebrae by a novel cage-screw implant. The objective of this study is to analyze the biomechanical flexibility in terms of the range of motion (ROM) of two-level ACDF fixation using the finite element method (FEM). A CT scan-based FEM model of the cervical spine (C2-C7) is used and two-level cage is implanted at C4-C6 segments. A 50-N compressive force and 1-Nm moment are applied on C2 vertebrae and C7 is fixed in all directions. The ROM at two-level fixation (C4-C5-C6) is reduced by 55 to 88&amp;#37; compared with intact spine during all physiological movement. The ROM slightly increase (3-9&amp;#37;) at the adjacent segment. The maximum von Mises stress variations are 25-65 MPa during flexion-extension, lateral bending, and axial rotations under given loading. The maximum von Mises stress found in cage and screw is below the yield stress during all physiological movement.\n\n<\/p>","DOI":"10.1615\/jlongtermeffmedimplants.2022044668","type":"journal-article","created":{"date-parts":[[2022,11,17]],"date-time":"2022-11-17T21:05:38Z","timestamp":1668719138000},"page":"43-52","source":"Crossref","is-referenced-by-count":5,"title":["Biomechanical Analysis of Two-Level Novel Cage-Type Implant for Anterior Cervical Discectomy and Fusion: A Finite Element Analysis"],"prefix":"10.1615","volume":"33","author":[{"given":"Ram","family":"Kumar","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amit","family":"Kumar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"613","reference":[{"issue":"10","key":"1","doi-asserted-by":"crossref","first-page":"2049","DOI":"10.1016\/j.clineuro.2013.07.013","article-title":"Alternative grafts in anterior cervical 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