54-year-old female. Plantar fasciitis. Evaluate for a plantar tear. Evaluation of the fibula and surrounding soft tissues is limited due to metallic susceptibility artifact resulting from a distal fibular plate and screw device.TENDONS: Small amount of fluid within the medial tendons is unlikely to be of clinical significance. There is increased signal intensity within the peroneus brevis tendon as it courses posterior and beneath the fibular tip suggesting a longitudinal tear. There is a small amount of fluid within the peroneal tendon sheath at the level of the fibular tip, of questionable significance. The anterior tendons are normal.LIGAMENTS: The anterior talofibular ligament is not well visualized perhaps due to a chronic tear. The calcaneofibular ligament appears intact. The posterior talofibular ligament is slightly heterogeneous but we suspect is intact. The anterior and posterior tibiofibular ligaments are grossly intact. There is loss of the normal fatty striations of the deep fibers of the deltoid ligament along with small ossicles distal to the medial malleolus suggesting old trauma.ARTICULAR SURFACES AND BONE: There is thickening and increased signal intensity of the plantar fascia at its calcaneal attachment compatible with plantar fasciitis. We see no fluid signal intensity disrupting the fascia to indicate a tear. A small plantar calcaneal spur at the fascial attachment is seen with mild marrow edema, likely reactive. An os trigonum representing normal variant anatomy is noted with normal signal intensity. Tiny ankle and midfoot osteophytes compatible with mild osteoarthritis. Small amount of fluid in the tibiotalar and subtalar joints, of doubtful clinical significance. We see no osteochondral defect.
1. Plantar fasciitis with reactive mild edema in an adjacent calcaneal spur. We see no plantar fascial tear.2. Post-operative changes of distal fibular fixation.3. Ligamentous abnormalities, as described above, may be due to old trauma.4. Partial-thickness longitudinal tearing of the peroneus brevis of questionable current clinical significance.