The investigators aimed to evaluate the effectiveness of bilateral erector spina plane block application in myofascial pain syndrome.

The investigators aimed to evaluate the effectiveness of bilateral erector spina plane block application in myofascial pain syndrome by comparing trigger point injection. Group 1 received erector spinae plane block, and group 2 received trigger point injection both administered in two weekly sessions. Before the application, one week after application and one month after application the investigators aimed to compare pressure pain threshold with algometer, visual analog scale score, neck disability index score, for the two groups. Each group has 30 participants, total 60 participants included this study. The investigators planned to show that bilateral erector spinae plane block can be used as an effective and safe method in the treatment of myofascial pain syndrome, since it is easier to apply than other invasive procedures used in the treatment and has a very low complication profile.

Inclusion Criteria:

• Get a myofascial pain syndrome diagnosis
• No invasive procedure for myofascial pain syndrome in the last 1 month
• Signing the informed consent form

Exclusion Criteria:

• Cervical disc herniation
• Neck/shoulder, thoracal trauma or operation history
• Malignancy
• Kyphoscoliosis
• Inflammatory diseases (Rheumatoid arthritis, ankylosing spondylitis...)
• Congenital vertebral anomalies
• Pregnancy
• Mental, psychogenic disorder
• Hematological diseases that cause bleeding and coagulation disorders
• Use of antiplatelet, anticoagulant and drugs that cause bleeding tendency
• Severe systemic infection such as sepsis and local infection at the intervention site
• Having an allergy to any of the drugs to be used