Effectiveness of Dry Needling in Chronic Neck Pain.

University of Seville

Status: Completed

Conditions: Neck Pain

Treatments: Other: Exercise; Other: Local Dry needling and exercise; Other: Sham dry needling and exercise; Other: Distal Dry needling and exercise

Study type: Interventional

Funder types: Other

Identifiers

NCT03844802

Dry Needling

Details and patient eligibility

About

Objectives: To investigate the effect of combining real or placebo dry needling with therapeutic exercise in self-reported pain, pressure pain sensitivity, neck disability, global rating of change (GROC) scale, muscle viscoelastic properties (muscle tone and stiffness) and left/right discrimination ability in adults with chronic non-specific neck pain.

Design: Quantitative, experimental, longitudinal, prospective, and single blinded study.

Subjects: Participants aged between 18 and 60 years, and with non specific neck pain of at least 3 months of evolution.

Methods: Participants will be randomly allocated in four groups: a) isolated use of a home based therapeutic exercise (TE) program (TE Group); b) combination of the exercise program and the use of deep dry needling (DN) in neck shoulder muscles with active or latent myofascial trigger points (MTrPs) in order to elicit local twitch responses (LTR) (TE + local DN Group); c) therapeutic exercise combined with DN applied distally from the muscle areas with MTrPs and, therefore, without, eliciting LTRs (TE + distal DN Group); and d) therapeutic exercise program combined with placebo DN (TE + placebo DN Group).

Full description

All groups will be instructed by a physiotherapist in the performance of protocol of neck-shoulder exercises. This program will be carried out at home for at least three days a week during three months. The exercise protocol includes active mobilization, stretching and strengthening (concentric/eccentric, isotonic, and isometric) exercises. All participants will be given a booklet with a detailed description of every single exercise.

Those participants included in any of the DN groups will undergo 3 sessions of treatment (1 session per week during 3 consecutive weeks). In each session, the physiotherapist in charge of the intervention will assess the presence of active or latent MTrPs in severa neck shoulder muscles. The selected muscles have been previously described as having a higher prevalence of MTrPs in adults with chronic neck pain: a) scalene muscles; b) levator scapulae; c) splenius cervicis; d) cervical multifidus; and e) upper trapezius trapezius. The location of the trigger points will be carried out following the recommendations and guidelines described in the literature.

Those in the TE + local DN group will receive deep DN, using a fast-in fast-out technique, as described by Hong. The needle, once inserted in the muscle with a 10 to 20 mm depth, will be mobilized in a quick ascending and descending motion, in order to evoke the so-called LTRs. A minimum of 3 to 6 LTRs will be elicited in each muscle.

For patients in the TE + distal DN group, the deep DN intervention will be carried out in those muscles with MTrPs, but at a remote location from the MTrP area. The same evaluation and intervention protocol previously described for the TE + local DN group will be carried out. The main difference is that, in this group, DN will not elicit LTRs. Instead, DN will be applied at a minimum distance of 1-1.5 cm from the MTrP locus.

Finally, in the TE + placebo DN group, the therapeutic exercise program will be combined with DN using using a Dong Bang placebo needle, similar to the Streitberger placebo needle. These needles are designed with a retractable system. Therefore, these placebo needles evoke mechanical stimulation without piercing the skin; hence, patients experience a pressure sensation similar to that of a "real" needle.

Enrollment: 58 patients

Sex: All

Ages: 18 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Diagnosis of non-specific mechanical neck pain.
• Pain lasting for more than 3 months of duration.
• Self-reported pain higher than 3 in the Numeric Pain Rating Scale.
• Self-reported neck disability higher than 5 in the Neck Disability Index.

Exclusion criteria

• Absence of pain during passive neck rotation.
• Higher pain intensity in neutral position than during passive neck rotation.
• Absence of ipsilateral pain during passive neck rotation.
• Previous history of surgery of the cervical spine or upper extremity.
• Previous history of whiplash, diagnosis of fibromyalgia, or any neurological, inflammatory or rheumatological disease.
• Presence of two or more positive signs indicative of neural compression (sensitivity disorders, myotomic weakness in the upper extremities, or alteration in deep tendon reflexes).
• Radiological signs of root compression or spinal stenosis.
• Having received physical therapy treatment in the month prior to the start of the study.
• Analgesic and / or anti-inflammatory treatment in the last 72 h.
• Diagnosis of psychiatric disorders with ongoing medical treatment.
• Pregnancy or breastfeeding.
• Pending litigation in progress.
• Any contraindication to the use of dry needling.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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58 participants in 4 patient groups

Local dry needling and exercise

Experimental group

Description:

The intervention protocol will combine a home-based neck and shoulder exercise program and the use of deep dry needling in the locus of active or latent myofascial trigger points of different neck-shoulder muscles. Patients will receive 1 dry needling session a week during 3 consecutive weeks (3 sessions in total). They will also undergo the neck exercise program at home during these three weeks, and for the next three months.

Treatment:

Other: Local Dry needling and exercise

Distal dry needling and exercise

Active Comparator group

Description:

The intervention protocol will combine a home-based neck and shoulder exercise program and the use of deep dry needling in distant area from the location of active or latent myofascial trigger points of different neck-shoulder muscles. Therefore, dry needling will be applied in the same muscle but at a remote site from the locus of the myofascial trigger point, and, therefore, without evoking local twitch responses. Patients will receive 1 dry needling session a week during 3 weeks (3 sessions in total). They will also undergo the neck exercise program at home during these three weeks, and for the next three months.

Treatment:

Other: Distal Dry needling and exercise

Sham/placebo dry needling and exercise

Active Comparator group

Description:

The intervention protocol will combine a home-based neck and shoulder exercise program and the use of deep dry needling in the locus of active or latent myofascial trigger points of different neck-shoulder muscles. Patients will receive 1 "placebo dry needling" session a week during 3 weeks (3 sessions in total). Therefore, participants in this group will receive simulated dry needling (with sham placebo needles, that will not actually penetrate the skin) in those neck muscles with active or latent myofascial trigger points. As formerly stated, the placebo needles evoke mechanical stimulation without piercing the skin; hence, patients experience a pressure sensation similar to that of a "real" needle.They will also undergo the neck exercise program at home during these three weeks, and for the next three months.

Treatment:

Other: Sham dry needling and exercise

Neck Exercise

Active Comparator group

Description:

The intervention protocol will consist only a home-based neck and shoulder exercise program. Participants in this group will be also assessed for the presence of active or latent myofascial trigger points in the neck-shoulder muscles. As in the other groups, they will be advised to carry out the exercise protocol for three weeks and the following three months.

Treatment:

Other: Exercise