Online booking opens soon. Compare scans and prices now, and join the waiting list to hear when you can book.
← Health Guides
Scan Guides5 min read18 June 2026

Sports Injury MRI: When to Scan a Knee, Shoulder, or Ankle

Not every sports injury needs a scan, but for suspected ligament tears, cartilage damage, or persistent pain, an MRI is the gold standard for getting you back in the game.

👩‍⚕️
Dr James Whitfield
Consultant Radiologist, FRCR

Whether you are a weekend warrior or a professional athlete, sports injuries are frustrating. While many sprains and strains heal with rest and physiotherapy, some injuries require an accurate diagnosis to ensure proper treatment and avoid long-term damage. MRI is the ultimate diagnostic tool for sports injuries because of its unparalleled ability to image soft tissues like ligaments, tendons, and cartilage.

Knee Injuries: The most common sports MRI

The knee is a complex hinge joint vulnerable to twisting forces. An MRI is highly recommended if you heard a "pop" during the injury, if the knee swelled rapidly within two hours, or if you feel the joint locking or giving way.

What a knee MRI looks for:

  • Anterior Cruciate Ligament (ACL) tears
  • Meniscus (cartilage) tears
  • Medial Collateral Ligament (MCL) sprains
  • Bone bruising and occult (hidden) fractures not seen on X-ray

Shoulder Injuries: Rotator cuff and dislocations

Shoulder pain that prevents you from lifting your arm above your head, or pain that wakes you up at night, often warrants an MRI. For athletes involved in throwing, swimming, or weightlifting, the rotator cuff is particularly vulnerable.

For some shoulder injuries, a specialised scan called an "MR Arthrogram" (where dye is injected directly into the joint) may be required to see tiny labral tears.
Should I get an X-ray or an MRI for a sports injury?
An X-ray is only useful for looking at bones to rule out a fracture. It cannot see ligaments, tendons, or cartilage. If your doctor suspects soft tissue damage, an MRI or Ultrasound is required.
How soon after an injury should I get an MRI?
It is often best to wait 3-5 days after an acute injury before having an MRI. This allows the initial swelling and internal bleeding to subside slightly, which can otherwise obscure fine details on the scan. However, always follow the advice of your treating clinician.