Imaging recommendation · Musculoskeletal

Acute ankle pain after injury

Q: What's the alternative imaging for acute ankle pain after injury when persistent symptoms despite normal x-ray, ligament or osteochondral concern?

MRI — MRI Ankle (no contrast).

Q: What's the alternative imaging for acute ankle pain after injury when stress fracture concern (athletes)?

MRI — MRI Ankle / Foot (no contrast).

Recommended: X-ray Ankle 3 views is the preferred imaging study for acute ankle pain after injury. Apply Ottawa Ankle Rules to decide whether imaging is needed.

Recommended study

X-ray Ankle 3 views

XR No contrast Preferred Musculoskeletal EmergencyOutpatient Reviewed 2026-05

Apply Ottawa Ankle Rules to decide whether imaging is needed. MRI for persistent symptoms or concern for ligament / osteochondral injury.

If the default doesn't apply

Persistent symptoms despite normal X-ray, ligament or osteochondral concern

MRI MRI Ankle No contrast

Stress fracture concern (athletes)

MRI MRI Ankle / Foot No contrast

Watch-outs

Maisonneuve injury

Medial ankle pain after ankle inversion — include proximal fibula X-rays to exclude high fibular fracture.

Open fracture or neurovascular compromise

Skip rules, image and consult orthopedics immediately.

Pearls

Ottawa Ankle Rules: pain in malleolar zone + bony tenderness at malleolus posterior edge / tip OR inability to bear weight 4 steps → image.
Always include Mortise view to assess syndesmotic widening.
Salter-Harris fractures in skeletally immature patients — be alert for occult physeal injury.