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Table 2 The Hughston classification: classification of posterolateral instability assessed by varus instability

From: An isolated Posterolateral corner injury with rotational instability and hypermobile lateral meniscus: a novel entity

Classification

Varus instability

PCL injury

Grade I

0 – 5 mm

Intact PCL

Grade II

5 – 10 mm

Intact PCL

Grade III

> 10 mm (soft endpoint)

PCL rupture

  1. PCL posterior cruciate ligament