Solis cage (PEEK) for anterior cervical fusion: preliminary radiological results with emphasis on fusion and subsidence.

摘要: Abstract Background context Recent literature has raised some apprehensions with regard to the usage of cervical cages. Purpose Radiological review cases performed at our institution a novel cage made polyetheretherketone (PEEK). Study design Retrospective study. Methods A retrospective first 15 consecutive single-level anterior interbody fusion using Solis (PEEK material) for spondylotic radiculopathy or myelopathy was performed. The follow-up ranged from 12 35 months (average 18 months). Anteroposterior and lateral radiographs were taken immediately after surgery intervals 3, 6, 12, 24 surgery. Anterior disc height (ADH), posterior (PDH), ratio (IBHR), distance between margin wall vertebral body (D-CPW), angle (IBA) measured on compared. Fusion assessed by examining trabecular continuity, bridging bone across space, sclerosis end plates both sides. parameters time fusion, subsidence, segmental sagittal alignment operated segment, presence/absence migration cage. Data analyzed Mann-Whitney nonparametric test. Results evident 3–6 postsurgery in all except one (93.33% rate 6 At last follow-up, maintained cases. immediate postoperative ADH PDH significantly greater than respective preoperative values though there significant amount subsidence when compared X-rays. IBHR IBHR, but not statistically significant. IBA (lordotic angle) lesser value no statistical significance. less period, There extrusion latest follow-up. Conclusions high rate, low stability provided cage, facilitation radiological assessment are result physical properties PEEK material as well