Runners and Bone Stress Injuries
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Introduction (what they are)[edit | edit source]
Bone Stress Injures occur when the bone stresses applied during activity, like running, exceed the bone's tissue tolerance. They most commonly occur in competitive cross-country runners and track-and-field athletes. [1]
Mechanism of Injury[edit | edit source]
With an increase in external mechanical factors, there are adaptive changes in internal architecture. With the increased load, a stress reaction would occur with the presence of periosteal edema. A bone stress fracture would be indicated by a cortical fracture line on the MRI. [1]
Bones have a stronger compressive tolerance, and have a greater conservative recovery.
One mechanism indirectly related to running, but relating to athlete health, are gonadal hormone irregularities, which can cause athletes to have cortical and trabecular BSIs and/or osteopenia or osteoporosis. This can also occur in athletes with nutritional imbalances, hormonal influences, and decreased bone mineral density. [1]
Diagnosis[edit | edit source]
BSIs can be detected from MRIs of periosteal edema as well as differing levels of bone marrow edema. More severe injuries may be indicated by a cortical fracture line on the MRI. [1]
Upon noticing these symptoms, early identification and management would lead to better prevention of further injury. [1]
Resources[edit | edit source]
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