Correction to: Early and midterm efficacy of oxiplex gel on postoperative pain intensity, physical disability, and musculoskeletal power in patients undergoing lumbar discectomy - Alireza Tabibkhooei; Maziar Azar; Mohsen Nabiuni; Javad Jahandideh; Mohsen Benam; Farid Qoorchi Moheb Seraj; Feizollah Ebrahimnia; Ali Moradi (Egyptian Journal of Neurosurgery)