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Foot and Ankle Bone Marrow Edema Assessment in Long Distance Runners.
Ryan Hatch1, Paul Devito2, Megan Reams2
1Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN, USA.
Foot and ankle bone marrow edema (BME) in marathon runners often resolves independently and is not linked to pain scores. This condition may heal faster than in other lower extremity areas, suggesting self-care is effective.
Area of Science:
- Orthopedics
- Radiology
- Sports Medicine
Background:
- The clinical significance of foot and ankle bone marrow edema (BME) is not well understood.
- Marathon running can cause stress injuries, including BME.
Purpose of the Study:
- To investigate the correlation between foot and ankle bone marrow edema (BME) and clinical symptoms in marathon runners.
- To assess the resolution rate of BME in the foot and ankle.
Main Methods:
- Magnetic resonance imaging (MRI) and visual analog scale (VAS) pain scores were collected from 17 marathon runners.
- BME lesions were scored based on frequency, location, and change over 6 weeks.
- Correlation and t-tests were used to analyze BME, VAS scores, and mileage.
Main Results:
- Bone marrow edema (BME) was identified in 5 participants (29.4%) post-marathon, with all lesions resolving by 6 weeks.
- No correlation was found between VAS pain scores and postmarathon BME.
- No significant difference in 6-week mileage was observed between participants with and without BME.
Conclusions:
- Foot and ankle bone marrow edema (BME) identified by MRI shows no correlation with clinical symptoms.
- BME in the foot and ankle may resolve with self-directed activity more quickly than in other lower extremity regions.
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