Nikku R, Nietosvaara Y, Kallio PE, Aalto K, Michelsson J-E. Operative versus closed treatment of primary dislocation of the patella Similar 2-year results in 125 randomized patients. ActaO [Internet]. 1997 Jan. 1 [cited 2026 May 18];68(5):419-23. Available from: https://actaorthop.org/actao/article/view/20761