Does Knee Extensor Muscle Imbalance Cause Changes in Patellar Tracking?

نویسندگان

  • Andrew Sawatsky
  • Tim Leonard
  • Walter Herzog
چکیده

Patellofemoral pain syndrome (PFPS) is one of the most common knee disorder seen by clinicians. The main region of pain is the lateral aspect of the patellofemoral joint. Force imbalance in the knee extensor muscles has been associated with changes in patellofemoral tracking [1] and is suspected to cause PFPS. Weakness of the vastus medialis (VM) relative to the vastus lateralis (VL) is the usual imbalance associated with PFPS. The fibers of VM are aligned about 50° from the femoral axis and this structural arrangement has been thought to pull the patella medially while VL has been assumed to provide the corresponding lateral balance [2].

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تاریخ انتشار 2011