Stress Fracture (cont.)
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Exams and Tests
There are a variety of other diagnoses that the health care practitioner may consider when making the diagnosis of a stress fracture.
Some conditions that may mimic a stress fracture include:
The health care practitioner will gather the appropriate information to help make the correct diagnosis.
History and physical examination
The initial injury may be difficult to remember, but the health care practitioner may ask questions about how long the pain has been present, what makes it better or worse, and whether the pain has progressed or changed.
Past history will be helpful to access underlying risk factors for a stress fracture, including medication use and nutrition history. The diagnosis of an eating disorder and resultant osteoporosis may be considered in younger women with stress fractures who have stopped menstruating.
Physical examination may reveal a specific tender area that reproduces the pain, but the physical examination can only raise the suspicion of a stress fracture. The health care practitioner may check muscle strength, flexibility, and bone alignment as possible risk factors for stress fracture.
Plain X-rays do not show a stress fracture. However, if they are taken weeks after the symptoms begin, there may be evidence of extra bone that is being formed at the fracture site as the body heals the area.
Magnetic resonance imaging (MRI), computerized tomography (CT), and bone scans may be ordered to identify a stress fracture. CT and MRI scans look directly at the bone, but a CT scan requires the use of radiation, and an MRI scan is not often readily available. A bone scan uses a radioactive tracer injected into a vein in the arm to demonstrate areas where bone cells have increased activity and blood supply.
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