Genitiempo M, Perna A, Santagada DA, et al. - The clinical and radiological outcomes were assessed in patients treated with single-level Bryan cervical disc arthroplasty after 18 years of follow-up. A retrospective analysis was conducted to include institutional databases concerning patients treated with Bryan cervical disc arthroplasty. Applying SF36 PCS, NDI and VAS, clinical and functional outcomes were analyzed. Radiological results were examined applying standard, flexion–extension x-ray and MRI. After surgery, the clinical and radiographic outcomes 18 years are acceptable. After 18 years of follow-up, the treated level range of motion reduction and the adjacent segment degeneration appears not to influence the clinical results.