Anterolateral ligament of the knee

The anterolateral ligament of the knee (ALL) is a ligament that is thought to aid with rotational stability of the knee joint. Some think that its presence (or reconstruction) may result in better outcomes from ACL stabilisation surgery 2. The ligament has also been implied in Segond fractures 3.

  • origin: prominence of the lateral femoral epicondyle, slightly anterior to the origin of the lateral collateral ligament
  • insertion: anterolateral aspect of the proximal tibia (between Gerdy's tubercle and the tip of the fibular head), with firm attachments to the lateral meniscus

The ALL is thought to be involved in rotational stability of the knee, checking internal tibial rotation. Injury of the ligament is thought to be related to pivot shift injuries.

The normal ligament can be identified with MRI and ultrasound 5,6. Whether imaging modalities are able to distinguish an injured ligament from an absent ligament is still an area of research.

Thought to have been first described by Paul Segond, a French surgeon, in 1879 7.

Lower limb anatomy
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Article information

rID: 39957
Section: Anatomy
Synonyms or Alternate Spellings:
  • Retrograde tract fibers

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