Physical examination and imaging of the lateral collateral ligament and posterolateral corner of the knee

Michael S. Bahk, Andrew J. Cosgarea

Research output: Contribution to journalReview article

Abstract

Diagnosis of posterolateral corner injuries can be challenging. Understanding the mechanism of injury in combination with careful history taking and a thorough physical examination are crucial. Clinical findings may be subtle, especially in the acute setting. Specialized tests such as external rotation recurvatum test, posterolateral drawer test, reverse pivot shift test, and dial test are particularly helpful. A characteristic radiographic finding is the arcuate sign, whereas medial Segond fractures can be associated with posterolateral corner injuries. Magnetic resonance imaging is most useful when performed with a high strength magnet utilizing a coronal oblique technique. Prompt and accurate diagnosis of posterolateral corner injuries allows the orthopedist to initiate the appropriate repair and reconstruction procedures to assure optimum treatment results.

Original languageEnglish (US)
Pages (from-to)12-19
Number of pages8
JournalSports Medicine and Arthroscopy Review
Volume14
Issue number1
DOIs
StatePublished - Apr 3 2006

Keywords

  • Arcuate sign
  • Dial test
  • External rotation recurvatum test
  • Lateral collateral ligament
  • Medial segond fracture
  • Posterolateral corner

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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