Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Grade 1 subsidence in a case that underwent C5–C6 cervical disc arthroplasty (CDA). (A–C) are the cervical radiographs before surgery, immediately after surgery, and at 1 year follow-up, respectively. (D–F), respectively, represent the schematic diagrams for radiographs (A–C). DH1 = anterior disc height; DH2 = middle disc height; DH3 = posterior disc height; FSUH = functional spinal unit height; IH = implant height; ISA = implant subsidence area.
