Knee-Spine Syndrome, a Common Presentation in Elderly Patients Who Are Candidate for Knee Arthroplasty: Educational Corner - Moharrami, Alireza; Mirahmadi Eraghi, Mohammad; Beheshti Fard, Shahabaldin; Asadifar, Ali; Salehi, Ali; Sharifpour, Sadulla; Mortazavi, SM Javad (Journal of Orthopedic and Spine Trauma, 2024)