Fig. 7

A 36-year old male patient diagnosed C6/7 disc herniation underwent anterior C6/7 discectomy and DCI arthroplasty. Preoperative lateral radiographic image (a) showed narrowed intervertebral space. 1 month postoperative X-ray image (b, c) demonstrated partial restoration of intervertebral height and appropriate position of DCI implant. However, Lateral and flexion-extension radiographic image at the final follow-up (d, e, f) illustrated subsidence of the DCI implant with decrease of the intervertebral height and ROM of FSU