Segond fracture
Alerts and Notices
Synopsis
Causes / typical injury mechanism: Flexion and internal rotation of the knee is the typical mechanism of injury in a Segond fracture / anterolateral ligament (ALL) injury.Classic history and presentation: The typical patient is an athlete with a noncontact pivot or cutting injury, or a patient with history of blunt force applied directly to the knee.
Prevalence:
- Segond fracture is associated with anterior cruciate ligament (ACL) injury in between 75% and 100% of cases.
- Sex / gender – ACL injury has increased incidence in females.
Pathophysiology: The Segond fracture is traditionally thought to represent a capsular avulsion fracture of the ALL off the proximal anterior lateral tibia.
Grade / classification system: No classification for the injury itself but the Lachman test on physical examination is typically reported for the associated ACL injury –
- Grade 1: < 5 mm translation
- Grade 2: 5-10 mm translation
- Grade 3: > 10 mm translation
- A: Firm endpoint.
- B: No firm endpoint.
Codes
ICD10CM:S82.126A – Nondisplaced fracture of lateral condyle of unspecified tibia, initial encounter for closed fracture
SNOMEDCT:
735671008 – Fracture of lateral condyle of tibia
Look For
Subscription Required
Diagnostic Pearls
Subscription Required
Differential Diagnosis & Pitfalls
- ACL rupture
- Posterior cruciate ligament (PCL) rupture
- MCL sprain
- LCL injury
- PLC injury
- Multiligamentous knee injury
- Avulsion fracture of the iliotibial (IT) band from the proximal tibia
- Avulsion fracture of the fibular head
- Tibial plateau fracture
- Tibial spine avulsion fracture
- Tibial tubercle fracture
Best Tests
Subscription Required
Management Pearls
Subscription Required
Therapy
Subscription Required
References
Subscription Required
Last Reviewed:05/03/2021
Last Updated:05/03/2021
Last Updated:05/03/2021