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External Rotation Recurvatum Test

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Other Names

  • External Rotation Recurvatum Test



The External Rotation Recurvatum Test[1]
  • Patient lies in the supine position
  • Examiner places a downward force through the suprapatellar region
  • Simultaneously, the lift the big toe off the table and externally rotating the tibia with the other hand.
  • Positive test
    • Excess hyperextension
    • Exaggerated external rotation of tibia
    • Tibial varus



Isolated PLC injury

  • LaPrade et al[2]
    • Sensitivity: 7%

PLC injury combined with ACL injury

  • LaPrade et al[2]
    • Sensitivity: 30%

See Also


  1. Swinford, Steven T., et al. "Biomechanics and physical examination of the posteromedial and posterolateral knee: state of the art." Journal of ISAKOS 5.6 (2020): 378-388.
  2. 2.0 2.1 LaPrade RF, Ly TV, Griffith C. The external rotation recurvatum test revisited: reevaluation of the sagittal plane tibiofemoral relationship. Am J Sports Med. 2008 Apr;36(4):709-12. doi: 10.1177/0363546507311096. Epub 2008 Jan 8. PMID: 18182654.
Created by:
John Kiel on 3 December 2020 06:21:10
Last edited:
28 March 2023 17:17:28