笼子
医学
颈椎前路椎间盘切除融合术
外科
下沉
入射(几何)
前瞻性队列研究
偷看
颈椎
复合材料
地质学
材料科学
古生物学
物理
光学
组合数学
聚合物
构造盆地
数学
作者
Yuta Nakanishi,Kentaro Naito,Toru Yamagata,Masaki Yoshimura,Nobuyuki Shimokawa,Misao Nishikawa,Kenji Ohata,Toshihiro Takami
标识
DOI:10.1016/j.jocn.2020.01.056
摘要
This multicenter prospective study investigated cage subsidence in anterior cervical discectomy and fusion (ACDF) using titanium-coated polyetheretherketone (PEEK) stand-alone cages. This study recruited patients who underwent 1- or 2-level ACDF using titanium-coated PEEK stand-alone cages for cervical disc disease. Patients with acute trauma or past cervical spine operations were excluded. Sixty-two cages in 42 patients were eligible for analysis. Minimum follow-up was 6 months after ACDF. Significant cage subsidence was recognized in 11 of 62 cages (17.7%). Cage subsidence was predominantly moderate (14.5%), with severe subsidence found in only 2 cages (3.2%). The slowest occurrence of cage subsidence was 6 months after surgery, in 4 of 11 cages. Frequency of cage subsidence did not differ significantly between patients <65 and ≥65 years old. Patients with and without cage subsidence both demonstrated significant improvement of neurological function. Cage subsidence resulted in aggravation of local angle, but finally did not affect C2-7 angle or cervical tilt angle. Severe cage subsidence was found in only 3.2% of patients within 6 months after ACDF. Cage subsidence aggravated local angle, but finally did not affect C2-7 angle or cervical tilt angle. One- or 2-level ACDF using titanium-coated PEEK stand-alone cages appears safe and justified, even in elderly patients.
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