- MRI:
- A scan that uses a magnetic field and radio waves (no X-rays) to create detailed images of soft tissues and bone.
- Midfoot / tarsometatarsal joints:
- The region where the bases of the long foot bones meet the smaller bones in the middle of the foot.
- Lisfranc injury:
- An injury to the ligaments and joints at the midfoot, where the long foot bones connect to the midfoot bones.
- Dislocation:
- When bones that normally meet at a joint move out of their proper position.
- Tendon:
- A cord-like tissue that connects muscle to bone.
- Ligament:
- A band of tissue that connects one bone to another and helps hold a joint together.
- Cortical margin / cortex:
- The firm outer surface layer of a bone.
- Marrow signal:
- The appearance of the soft tissue inside bones on the scan; changes in it can reflect bruising, swelling, or other processes.
- Fat plane:
- A thin strip of fat that normally sits between structures and shows up clearly on MRI; changes in it can sometimes reflect swelling or injury.
- Radiologist:
- A medical doctor who specializes in interpreting imaging studies like MRI.