Design limitations of Bryan disc arthroplasty.

Background Context: Disc arthroplasty is gaining momentum as a surgical procedure in the treatment of spinal degenerative disease. Results must be carefully scrutinized to recognize benefits as well as limitations.

Purpose: The aim of this study was to investigate factors associated with segmental kyphosis after Bryan disc replacement.

Minimally invasive lateral mass plating in the treatment of posterior cervical trauma: surgical technique.

Objective: The technique of lateral mass fixation restores the posterior tension band and provides effective stabilization in patients with many types of traumatic injuries. However, postoperative wound pain is not uncommon. The objective of this work is to describe a modified technique of minimally invasive lateral mass plating for cervical spine trauma.