Knee MRI in St. Louis — $399 Flat Rate
Knee MRI is the standard imaging study for internal knee injury. It can show soft tissue that X-ray misses entirely, including the menisci, the four major ligaments, the cartilage surfaces, and the tendons around the joint.
Not sure which side? Just pick one — we'll confirm by phone. Or call us.
A doctor's order is required — your provider can fax it to (314) 804-7226.
A Doctor's Order Is Required
We require a doctor's order before we can perform an MRI, and so do Medicare and most insurance plans. No order yet? We can help you get one — most patients arrange it in a day or two.
What the Radiologist Looks For
- Meniscal tears — medial and lateral, including tear pattern and location
- ACL and PCL tears, partial tears, and prior graft integrity
- MCL and LCL sprains and tears
- Cartilage defects and early chondral loss
- Bone marrow edema, stress reactions, and occult fractures
- Patellar tendinopathy and quadriceps tendon injury
- Baker's cyst and joint effusion
- Osteochondral lesions and loose bodies
Who Orders This
Common after a twisting injury, a pop or giving-way sensation, persistent swelling, or locking. Orthopedic surgeons routinely require it before arthroscopy.
How to Prepare
- No fasting or special preparation.
- Shorts are ideal — leave the knee brace at home if you can walk safely without it.
- Remove any ankle or knee jewelry and metal-containing athletic wear.
- Tell us which knee. We image one knee per study.
Common Questions
Yes, but they are two separate studies with two separate charges, because each knee needs its own coil placement and its own set of sequences. Most patients start with the symptomatic side.
Yes. Braces contain metal stays and cannot go in the scanner. Bring it with you and put it back on afterward.
It can, and in more detail than X-ray for the cartilage itself. That said, if arthritis is the primary question, a weight-bearing X-ray is often the more appropriate and cheaper first step. MRI is best when soft tissue injury is suspected.
New to MRIs? Read our complete guide to what to expect · More questions? See all FAQs · Read patient reviews
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Request Your Knee MRI
Flat rate $399. No insurance required. Same-day appointments by phone.