Myofascial pain syndrome

Myofascial pain syndrome
Other namesChronic myofascial pain, myofascial pain and dysfunction syndrome (MPDS or MFPDS)
SpecialtyRheumatology
Differential diagnosisGiant cell arteritis, arthritis[1]

Myofascial pain syndrome (MPS), also known as chronic myofascial pain (CMP), is a syndrome characterized by chronic pain in multiple myofascial trigger points ("knots") and fascial (connective tissue) constrictions. It can appear in any body part. Symptoms of a myofascial trigger point include: focal point tenderness, reproduction of pain upon trigger point palpation, hardening of the muscle upon trigger point palpation, pseudo-weakness of the involved muscle, referred pain, and limited range of motion following approximately 5 seconds of sustained trigger point pressure.[2]

The cause is believed to be muscle tension or spasms within the affected musculature.[1] Diagnosis is based on the symptoms and possible sleep studies.[1]

Treatment may include pain medication, physical therapy, mouth guards, and occasionally benzodiazepine.[1] It is a relatively common cause of temporomandibular pain.[1]

  1. ^ a b c d e "Myofascial Pain Syndrome - Dental Disorders". Merck Manuals Professional Edition. Retrieved 27 May 2019.
  2. ^ Bennett R (June 2007). "Myofascial pain syndromes and their evaluation". Best Practice & Research. Clinical Rheumatology. 21 (3): 427–445. doi:10.1016/j.berh.2007.02.014. PMID 17602992.