External Rotation Recurvatum Test
Other Names
- External Rotation Recurvatum Test
- Hughston’s External Rotation Recurvatum Test
- Hughston Test
- Recurvatum-External Rotation Test
- Knee External Rotation Recurvatum Sign
- Posterolateral Corner Instability Test
- PLC Recurvatum Test
- Recurvatum Test for Posterolateral Instability
Purpose
- Evaluate the integrity of the Posterolateral Corner in the setting of acute knee injury
Description
- 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
Pathology
Evidence
Isolated PLC injury
- LaPrade et al[4]
- Sensitivity: 7%
PLC injury combined with ACL injury
- LaPrade et al[4]
- Sensitivity: 30%
See Also
References
- ↑ Rossi, Roberto, et al. "Clinical examination of the knee: know your tools for diagnosis of knee injuries." Sports Medicine, Arthroscopy, Rehabilitation, Therapy & Technology 3.1 (2011): 25.
- ↑ 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.
- ↑ Lunden, Jason B., et al. "Current concepts in the recognition and treatment of posterolateral corner injuries of the knee." journal of orthopaedic & sports physical therapy 40.8 (2010): 502-516.
- ↑ 4.0 4.1 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
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Last edited:
1 April 2026 19:46:30
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