Historical trends and future projections of cervical disc arthroplasty and removal cervical disc arthroplasty in the United States Medicare population

Primary CDA may be entering a mature adoption phase with modest projected growth, while removal CDA is expected to grow more substantially. These projections reflect trends in an older population, which may not generalize to younger individuals undergoing CDA. Our findings reinforce the need for continued surveillance, resource planning, and better understanding of long-term CDA complications in the increasingly aging population.