Medial collateral ligament injury

Medial Collateral Ligament injury (MCL)

A tear of the ligament of the inner aspect of the knee. Usually a traumatic injury and are known to heal well without operative intervention.

History

  • Young to middle age
  • Fall or twist
  • Immediate pain
  • Possible effusion – slow onset
  • Difficulty weight bearing
  • Medial pain

Signs

  • Limp
  • Local tenderness
  • Possible effusion
  • Possilbe MCL laxity
  • Difficulty kneel/squat

MCL Injury

Pain on stressing MCL

 

Who to refer, who not to refer, how to refer

Who to Refer

  • Any confirmed MCL injury with ongoing symptoms and laxity
  • Associated injuries e.g ACL/ meniscal injuries

Urgent Referral Criteria

  • Associated injuries e.g ACL/ meniscal injuries
  • If referred into Orthopaedics - these types of injuries will be triaged as urgent in orthopaedic vetting

Who Not to Refer

Additional Info

  • Unlikely to require surgery
  • Most heal well with hinged knee brace and Physio
  • Unlikely to operate BMI >40

Imaging

  • MRI to be requested by Ortho only

How to refer

We accept referrals through SCI gateway for those who are based in Scotland.

We also accept e referrals through the below email address using the attached form for those who are based just on the other side of the border. 

E- Referral Email address - bor.orthoreferrals@borders.scot.nhs.uk

Referral form - E-Referral to Orthopaedics (Non Sci-Gateway)    

Primary care management

  • Brace Protocol- 0-90° 6/52
  • Physio rehab- strengthening over extended period (1yr)
  • Regular maximum multimodal analgesia
  • Education
  • BMI >35 engage in wellbeing support

Resources and links

Primary Knee Pathway  - developed by First Contact Practitioners Primary Knee Pathway

Editorial Information

Last reviewed: 31/07/2025

Author(s): Paul Middleton.