Osteoporosis is not associated with reoperation or pseudarthrosis after anterior cervical discectomy and fusion through 4-years' follow-up: a retrospective cohort study of US academic health centers. - Baumann AN; Trager RJ; Gong DC; Anaspure OS; Strony JT; Aleem I (The spine journal : official journal of the North American Spine Society, 2025)