Journal
ASIAN SPINE JOURNAL
Volume 15, Issue 3, Pages 373-380Publisher
KOREAN SOC SPINE SURGERY
DOI: 10.31616/asj.2020.0231
Keywords
Cervical spine; Anterior cervical discectomy and fusion; Additive manufacturing; Individualized implant; Bioactive porous titanium
Categories
Funding
- Japan Society for the Promotion of Science [19200039]
- Grants-in-Aid for Scientific Research [19200039] Funding Source: KAKEN
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This study introduced a patient-specific bioactive porous titanium implant manufactured via selective laser melting for stand-alone anterior cervical discectomy and fusion (ACDF). The implant showed successful bony union in the majority of patients, significant improvement in clinical parameters post-surgery, and no adverse effects related to the implant.
The purpose of this study was to introduce our patient-specific bioactive porous titanium implant manufactured using selective laser melting (SLM) and to establish the efficacy and safety of the implant for stand-alone anterior cervical discectomy and fusion (ACDF) based on a prospective clinical trial. We designed a customized ACDF implant using patient-specific data and manufactured the implant using SLM. We produced a bioactive surface through a specific chemical and thermal treatment. Using this implant, we surgically treated four patients with cervical degenerative disc disease and evaluated the clinical and radiological results. We achieved successful bony union in all but one patient without autologous bone grafting within 1 year. We observed no implant subsidence during the follow-up period, and all clinical parameters improved significantly after surgery, with no reported implant-related adverse effects. Our customized bioactive porous titanium implant is a safe and promising implant for stand-alone ACDF.
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