What Causes Myofascial Pain Syndrome After Injury?
Yes, trauma is a possible cause.
Detailed Answer:
Hello and thanks for using HCM.
I have read your question and understand your concerns.
The answer to your question is straightforward, yes, injury to a muscle may cause myofascial pain syndrome.
Initially sensitive areas of muscles fibers are formed after the injury ( trigger points ).
When the pain persists, spreads and worsens, myofascial pain syndrome should be considered.
Some articles are listed below:
https://www.ncbi.nlm.nih.gov/m/pubmed/0000/
http://emedicine.medscape.com/article/305937-overview#a3
Unfortunately there are no imaging studies or lab tests to support the achievement of this diagnosis, it is a diagnosis achieved mainly by clinical examination and exclusion of other possible similar conditions.
Hope you found the answer helpful.
Let me know if I can assist you further.
Kind regards.