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Anterolateral ligament of the knee

   
  • Anterolateral ligament (ALL) originates on the lateral femoral epicondyle and inserts on the anterolateral tibia.
  • Segond fracture is actually a bony avulsion of the ALL. (Claes S, Arthroscopy. 2014 Nov;30(11):1475-82)
  • Segond fracture (lateral capsular sign):  a lateral capsular avulsion fracture occurring just distal to the lateral tibial plateau which is associated with ACL tear. 
References
  • Hess T, Rupp S, Hopf T, Gleitz M, Liebler J. Lateral tibial avulsion fractures and disruptions to the anterior cruciate ligament. A clinical study of their incidence and correlation. Clin Orthop Relat Res. 1994 Jun;(303):193-7.
  • Claes S, Luyckx T, Vereecke E, Bellemans J. The Segond fracture: a bony injury of the anterolateral ligament of the knee. Arthroscopy. 2014 Nov;30(11):1475-82.
  • Claes S, Vereecke E, Maes M, Victor J, Verdonk P, Bellemans J. Anatomy of the anterolateral ligament of the knee. J Anat. 2013 Oct;223(4):321-8.