Randomized Controlled Trial
Prospective, randomized trial of metal-on-metal artificial lumbar disc replacement: initial results for treatment of discogenic pain.
Spine. 2008 Jan 15;33(2):123-31.
Randomized Controlled Trial
ProDisc artificial total lumbar disc replacement: introduction and early results from the United States clinical trial.
Spine. 2003 Oct 15;28(20):S167-75.
Randomized Controlled Trial
Artificial disc versus fusion: a prospective, randomized study with 2-year follow-up on 99 patients.
Spine. 2007 Dec 15;32(26):2933-40; discussion 2941-2.