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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04725825
Other study ID # BC-05419
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 1, 2021
Est. completion date July 15, 2021

Study information

Verified date February 2022
Source University Ghent
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

An experimental study will be conducted to evaluate the effect of a single dry needling session, compared to a sham needling session, on pain intensity, local and peripheral hyperalgesia, and conditioned pain modulation in patients with chronic idiopathic neck pain.


Description:

Chronic idiopathic neck pain frequently has a myofascial origin. This cervical myofascial pain is caused by myofascial trigger points (MTrPs). Myofascial trigger points are defined as hyperirritable nodules in a contracture of skeletal muscle fibers, which can cause pain symptoms, motor symptoms as well as autonomic symptoms. Many chronic pain populations (e.g. chronic whiplash associated disorders, fibromyalgia, chronic low back pain) show impaired pain processing and signs of central sensitisation. Central pain processing is defined as an increased responsivity of the nociceptive neurons in the central nerve system and is characterized by hyperalgesia (increased pain after a painful stimuli), allodynia (pain caused by a non-painful stimuli) and temporal summation (increased pain response after repeated stimuli with the same intensity). Hyperalgesia can be divided in local (increased sensitivity in the area of the complaints) and peripheral (increased sensitivity at remote area's). Furthermore, deficient inhibitory pain modulation can be present in this population. Conditioned pain modulation (CPM) can be measured by combining a painful conditioning stimuli (e.g. cold or heat) on a remote location, with a painful test stimuli. Cervical myofascial pain is often treated by dry needling (DN). DN is a myofascial treatment technique, which has been gaining interest in recent years. During DN, a thin, solid filiform needle is inserted directly into the MTrP. During this treatment, local twitch responses can be elicited. These are involuntary contractions of muscle fibers, leading to muscle relaxation, an increased local blood flow, recovery of the muscle metabolism and thus a reduction of pain and stiffness. By deactivation of the source of pain, chronification of the pain can be prevented. Up to this moment, there are no studies that investigated the central effects of DN. The aim of this study is to compare the effects of DN with sham needling on pain intensity, local and peripheral hyperalgesia and CPM, in patients with chronic idiopathic neck pain. Therefore, 100 patients will be recruited. Participants are included based on online questionnaires, a clinical examination of neck and shoulder, and the identification of a MTrP in the upper trapezius muscle. All participants will receive information and have to sign an informed consent form. Participants will be subjected to baseline assessment, which involves measurements of pain scores, hyperalgesia (pressure pain thresholds (PPT) by algometry) and CPM (by combining immersion of the hand in hot water while repeating the PPT). Then, participants will be randomly allocated to either a dry needling group or a sham needling group. The dry needling group will receive a dry needling treatment at the identified trigger point location of the upper trapezius, whereas the sham needling group will receive an intervention in which the needle only penetrates the skin but not the fascia and muscle tissue. The one-time intervention of both groups will take approximately 15 minutes. After the treatment, the baseline measurements will be repeated.


Recruitment information / eligibility

Status Completed
Enrollment 54
Est. completion date July 15, 2021
Est. primary completion date July 15, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria: - Chronic neck pain (symptom duration >3 months) - Mean NRS score >3/10 - The presentation of a clinically relevant myofascial triggerpoint in the upper trapezius muscle. Exclusion Criteria: - Specific neck pain (eg.structural pathology like a cervical discus hernia, cervical nerve root compression, factures...) - Major depression or psychiatric illness - Cardiovascular, neurological, life threatening, systemic and metabolic diseases - Other transferable diseases (HIV, hepatitis...) - Coagulation disorders or use of coagulation medication - Pregnancy or given birth the last year - Traumatic injuries/surgery to neck and upper limb region - Diagnosis of fibromyalgia/chronic fatigue syndrome - BMI > 30 kg/m2.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Dry needling
Dry needling (DN) is a myofascial treatment technique, in which a thin, solid filiform needle is inserted directly into the MTrP. During dry needling, local twitch responses (LTR) can be elicited. These are involuntary contractions of muscle fibers, leading to muscle relaxation, an increase in blood flow,recovery of the muscle metabolism and thus a reduction of pain and stiffness.
Sham needling
During sham needling, a solid, filiform needle is inserted in the skin surface at the trigger point location, without penetrating the fascia and muscle tissue.

Locations

Country Name City State
Belgium Ghent University Ghent Oost-Vlaanderen

Sponsors (1)

Lead Sponsor Collaborator
University Ghent

Country where clinical trial is conducted

Belgium, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in distant Pressure Pain Threshold A distant standardised PPT will be assessed using a digital handheld pressure algometer (FDX; Wagner Instruments) at the quadriceps muscle of the dominant painful side to measure distant hyperalgesia.
To measure the PPT, the researcher will apply the digital algometer to each of the indicated points with a round rubber end of 1 cm² and an increasing pressure of circa 1 N/s. As soon as the sensation of the subject shifts from a comfortable pressure to an altered, unpleasant feeling, the participant reports this and the test will be finished.
Each point will be measured twice with a 30-second interval in between and all measurements will be performed by one researcher in the same standardised position for each point and will be executed in a randomised order per patient.
Baseline and immediately after the intervention
Secondary Numeric Rating Scale (NRS) The neck pain of the patients will be rated on an 11-point NRS at the beginning of the trial. After the hot water immersion (CPM; at baseline and post-intervention), patients will also be asked to score the pain caused by the hot water on a NRS. Minimum value is zero; a score of zero means no pain (= better outcome) and maximum score is 10, which indicates the worst pain possible (=worse outcome). Baseline and immediately after the intervention
Secondary Change in Conditioned Pain Modulation Participants will be asked to put their (non-dominant) hand (up to a marked line on the wrist) in a bath (VersaCool, Thermo Fisher Scientific, Waltham, Massachusetts) with demineralised circulating water maintained at 46,5°C for one minute. To maximise the CPM effect, the non-dominant hand will be used.
During this minute, participants will be encouraged to persevere after 30 and after 45 seconds by one of the investigators. The PPTs will be used as the test stimulus.These will be measured pre- and post immersion.The difference between the pre- and post immersion PPTs will be used to assess the effectiveness of the CPM.
baseline and immediately after the intervention
Secondary Change in local Pressure Pain Threshold Two local standardised PPTs will be assessed using a digital handheld pressure algometer (FDX; Wagner Instruments) at the dominant painful and non-dominant painful upper trapezius muscle to measure local hyperalgesia.
To measure the PPT, the researcher will apply the digital algometer to each of the indicated points with a round rubber end of 1 cm² and an increasing pressure of circa 1 N/s. As soon as the sensation of the subject shifts from a comfortable pressure to an altered, unpleasant feeling, the participant reports this and the test will be finished.
Each point will be measured twice with a 30-second interval in between and all measurements will be performed by one researcher in the same standardised position for each point and will be executed in a randomised order per patient.
Baseline and immediately after the intervention
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