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Lateral Collateral Ligament (LCL)

Categories
  • Joint/Tendon
  • Knee
Tags
  • knee injury
Knee Anatomy & Examination
Normal Knee

Lateral collateral ligament(LCL) and Posterolateral ligamentous corner (PLC)

LCL ligament
LCL
Popliteus posterior view
Popliteus posterior view
Popliteus lateral view
Popliteus lateral view
Biceps Femoris muscle
Biceps Femoris muscle

LCL injury mechanism

LCL tear

ICRS Hyaline Cartilage Lesion Classification System

Grade
  • 1: Sprain
  • 2: Partial tear
  • 3: Complete tear
Torn LCL
ACL injury may be associated with collateral ligament tears
Dislocation of the knee
LCL injury may be related to knee dislocation

LCL and Meniscus tears

  • LCL tears may be associated with meniscus tear
  • Variation in meniscus tear pattern
ACL and Meniscus tears
Common meniscus tear patterns

Investigations

Knee X-rays:

  • Fractures including avulsion ligamentous injury can be excluded with knee X-rays

Ultrasound:

  • Useful to assess collateral ligament tears and grading thereof

MRI scan:

  • Gold standard investigation for soft tissue knee injury

Management LCL injury

Non-surgical treatment

  • Isolated Grade 1-2
  • Knee range of motion (ROM) brace where clinically indicated
  • Strengthening exercises
  • Progressive return to sport after completing a battery of testing

Surgery

  • Functional instability in an LCL & PLC deficient knee
  • Multiligamentous knee injury instability
Knee ROM brace
Knee ROM brace
Knee collateral ligament strapping
Knee collateral ligament strapping
Quadriceps strengthening with resistance band
Quadriceps strengthening with resistance band

Download ASSIC Performance Fingerprint or Strength & Conditioning apps for guideline knee bracing and rehab routine guidelines

apple app store  google play store

Surgery: LCL and PLC reconstruction

The LCL and PLC are reconstructed using graft with fixation to the lateral femur anatomic sites and at the fibular, depending on the reconstruction technique.

Modified Larson

Download ASSIC Performance Fingerprint or Strength & Conditioning apps for post surgery guideline rehab routines

apple app store  google play store

Contributor:

Dr M Y Hassan

Learn More

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