” One of the main characteristics of myofascial pain syndrome is that the
pain is regional, or confined to a limited area of the body. Generally,
myofascial pain will be found in the shoulders, neck, arms, face, low back and/or legs. It is quite often a result of misaligned posture." End Quote
Trauma seems to be the main cause of MPS and doesn't usually include surgery. Indeed I can find no literate that lists surgery as a causation of MPS....