An MRI of the knee produces detailed cross‑sectional images of bones and soft tissues, showing cartilage, menisci, ligaments (ACL, PCL, MCL, LCL), tendons, joint capsule, synovium, bone marrow and articular cartilage. It detects tears, degeneration, inflammation, fluid/effusion, bone bruises, occult fractures, cysts, infections or tumours, and post‑operative changes, helping guide diagnosis and treatment without ionising radiation.

A knee MRI cost varies by country and setting. In the US it typically ranges from $400 to $3,500 (often $1,000–$2,000 out‑of‑pocket without insurance). In the UK private scans are about £150–£400. In India prices commonly run ₹2,000–₹8,000. Final cost depends on facility (hospital vs imaging center), use of contrast, urgency, and insurance coverage.

A knee MRI usually takes about 20–45 minutes of scanning. A basic non-contrast exam often requires 15–30 minutes; more detailed protocols or contrast-enhanced studies can take up to 45 minutes or slightly longer. Expect additional time for registration, changing and positioning, so the full appointment typically ranges from about 30 minutes to an hour.

Before a knee MRI: wear loose, metal-free clothing and remove jewelry, watches, and piercings; bring prior imaging and ID. Tell staff about implants, pacemakers, metal fragments, pregnancy, kidney problems, or contrast allergies. You don’t usually need to fast or stop medications. Expect loud noises—earplugs/headphones provided—and stay still during the scan. If claustrophobic, discuss sedation or open MRI options.

A knee MRI typically costs: in India about ₹2,000–₹8,000; in the UK it’s free on the NHS or about £200–£700 privately; in the US roughly $400–$3,500 (can be higher). Final price depends on contrast use, facility type (hospital vs imaging center), and insurance or referral status—confirm local rates and coverage before booking.

Most knee MRIs are done on a closed-bore scanner, so you'll lie on a table and your leg (knee) slides into the tunnel-shaped magnet. However, many centers offer open or dedicated extremity MRI systems where only the knee is positioned and you’re less enclosed. If you’re claustrophobic, ask about open MRI, sedation, ear protection, and staff communication.