Comparison of Therapeutic Effects of Trigger Point Injection and Twin Nerve Block in Chronic Myofascial Pain Patients

Rutgers The State University of New Jersey

Status: Completed

Conditions: Myofascial Pain - Dysfunction Syndrome of TMJ; Trigger Point Pain, Myofascial; Nerve Block

Treatments: Other: Injection of either twin block or trigger point injection.

Study type: Interventional

Funder types: Other

Identifiers

NCT03870191

Pro20160000530

Details and patient eligibility

About

To see if there is there any difference in the treatment outcomes/results such as changes in pain intensity in patients with myofascial pain who have been treated with trigger point injections or twin block?

Full description

Most treatment approaches for chronic myofascial pain are not evidence-based. Studies are usually controversial. Most are short-term, non-randomized. An essential limitation has been the lack of standardization of diagnosis. Some studies do not differentiate between joint pain and muscle pain, which can significantly affect the outcome of the treatment provided.

Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) was recently published and validated. Their protocol allows standardization of the assessment and diagnosis of patients with temporomandibular disorder, including myofascial pain.

To the investigator's knowledge, no previous prospective, randomized study has been conducted demonstrating the treatment outcomes of either trigger point injections or twin block in patients with chronic myofascial pain.

Enrollment: 48 patients

Sex: All

Ages: 18 to 89 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients diagnosed with Myofascial pain with referral based on the DC/TMD criteria
• Pain on the masseter and or temporalis muscles
• Pain present for at least 3 months

Exclusion criteria

• Generalized muscle disorder such as fibromyalgia
• Subjects on chronic pain medication
• Subjects who are known to have hypersensitivity to the local anesthetics.
• Pregnant women. A pregnancy test will not be given before subject enrollment. Women of childbearing ages will be asked verbally if they are pregnant. If they are unsure, then they will be excluded from the study.
• Subjects with cognitive problems e.g. Alzheimer's disease.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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48 participants in 2 patient groups

Twin Block Group

Active Comparator group

Description:

This group will receive twin block injections.

Treatment:

Other: Injection of either twin block or trigger point injection.

Trigger Point Injection Group

Active Comparator group

Description:

This group will receive trigger point injections.

Treatment:

Other: Injection of either twin block or trigger point injection.