Sunday, March 29, 2009

Femoral Stress Fracture

I have had several patients over the past couple of years that have sustained femoral stress fractures while running. The presentation is not always the same because the fractures happen in different places along the femur. In each case, the patient was referred to me by another medical practitioner for physical therapy to treat their non-specific leg pain. In each case, the pain mimicked muscle pain and only a careful history teased out the possibility that a stress fracture was hiding under the radar.

  • First of all, I can say that almost without fail, the fracture occurred as the running intensity was elevated. The patient did not notice the pain immediately, but noticed it soon after, in each case by the next day.
  • Second, the pain was exacerbated with running, and specifically elevated with impact (landing on the injured leg).
  • Third, no matter what stretches the patient employed, if they used ice or not, the pain did not diminish.
  • Fourth, taking meds, like NSAIDs, did not resolve the pain.
  • Fifth, a complete orthopedic evaluation ruled out all the muscles as a source of the pain.

A suspicion of a stress fracture needs to be further investigated by a bone scan which shows a 2% change in bone density rather than an x-ray which illustrates a fracture when there is a 50% change in bone density. Some physicians prefer an MRI to rule it out, but most opt for a bone scan.

The treatment for a stress fracture is the same as for any fracture. Non-weight bearing for 6 weeks, followed by 6 weeks of rehab before returning to previous mileages.