Effects of Radio-frequency in Patients With Myofascial Chronic Neck Pain

Inclusion Criteria: -Patients aged between 18 and 60 years with myofascial chronic neck pain. The area of neck pain was defined as the cervical region, possibly with referred or radiating pain into the occiput, nuchal muscles, shoulders and upper limbs. Symptoms had to have been present for at least six months before. At least one active MTrP in one upper trapezius muscle had to be present. For bilateral neck pain, the most painful side was designated for treatment. Exclusion Criteria: * Severe disorders of the cervical spine, such as spinal stenosis, disk prolapse, postoperative conditions of the neck and shoulder areas, history of severe trauma, whiplash, spasmodic torticollis, instability, migraine, peripheral nerve entrapment, fibromyalgia, shoulder diseases, inflammatory rheumatic diseases, severe psychiatric illness and pregnancy.