Myofascial Trigger Points


Researchers believe that myofascial trigger points may cause some of the symptoms associated with plantar fasciitis. These trigger points are extremely irritable and have nodules that are palpable. They are found in tight muscle bands. Compression or provocation of the points cause pain, which may be noticeable in the referred pain zone. This zone is also known as a distal region.

Cause Of Myofascial Trigger Points

These points may be formed as a result of several factors include:

  • Over-stress
  • Trauma
  • Overuse
  • Dysfunctional joint
  • Psychological stress

When the points present sympto recognize features of the points.


One response that seems to beneficial results.


The integrated hypothesis of the trigger point model is the most well-known theory explaining the etiology of these points. This theory states that a trigger point is a phenomenon with several factoms.

Muscle Electrical Activity

Resting muscles should have little to the tension caused by muscle contractions. When ACh levels remain elevated, the result is perpetual contraction, and this results in an excess of calcium in the intra-cellular region.

Pain Interpretation

The brain uses a type of neuroplasticity called central sensitization to amplified visceral and somatic inputs.

Overall, researchers agree that the etiology of trigger points is attributed to muscle pain along with altered pressure distribution in intramuscular regions. However, researchers believe that the muscle components involved are added in progressive phases.


In this instance, an athlete was originally diagnosed with minor quadriceps muscle strain and was treated for four weeks, with unsatisfactory results. When he came to our clinic, the muscle was not healing, and the patients’ muscle tissue had already begun to atrophy.

Upon examination using MSUS, we discovered that he had a full muscle thickness tear that had been overlooked by his previous provider. To mitigate damage and promote healing, surgery should have been performed immediately after the injury occurred. Because of misdiagnosis and inappropriate treatment, the patient now has permanent damage that cannot be corrected.

The most important advantage of Ultrasound over MRI imaging is its ability to zero in on the symptomatic region and obtain imaging, with active participation and feedback from the patient. Using dynamic MSUS, we can see what happens when patients contract their muscles, something that cannot be done with MRI. From a diagnostic perspective, this interaction is invaluable.

Dynamic ultrasonography examination demonstrating
the full thickness tear and already occurring muscle atrophy
due to misdiagnosis and not referring the patient
to proper diagnostic workup

Demonstration of how very small muscle defect is made and revealed
to be a complete tear with muscle contraction
under diagnostic sonography (not possible with MRI)


Complete tear of rectus femoris
with large hematoma (blood)


Separation of muscle ends due to tear elicited
on dynamic sonography examination

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