Engebretsen, Lars, Svein Svenningsen, and Pål Benum. “Advancement of the Tibial Tuberosity for Patellar Pain A 5-Year Follow-up”. Acta Orthopaedica 60, no. 1 (January 1, 1989): 20–22. Accessed February 23, 2025. https://actaorthop.org/actao/article/view/22521.