Dry Needling Versus Manual Therapy in Patients With Mechanical Neck Pain: A Randomized Control Trial

Background: The current physical therapy evidence for treating patients with the mechanical neck pain recommends both, manual therapy (MT) and dry needling (DN) along with cervical and scapulothoracic exercises.1 However, at present, investigators still don't have any evidence suggesting if one treatment approach, the manual therapy and exercises or dry needling and exercises, is superior to the other in treating patients with the mechanical neck pain. Objective: The aim of this study is to compare the effects of dry needling and manual therapy on pain, disability, range of motion, strength, and patient perceived improvements in the patients with mechanical neck pain. Methods: Investigators will conduct a randomized, single-blind, placebo-controlled trial in accordance with the CONSORT guidelines. Patients with primary complain of neck pain, with a minimum score of 2 on Numeric Pain Rating Scale (NPRS), a minimum of 10 points or 20% score of Neck Disability Index (NDI), and who are over the age of 18 will be enrolled in the study. Subjects with any red flags, history of surgery at the cervical or thoracic spine, neurological symptoms, nerve root compression, whiplash in the last 6 weeks, pending legal actions related to neck pain, on workers compensation, insufficient English language skills, and/or contraindications to dry needling or manual therapy, will be excluded from the study. A total of 75 patients will be recruited for the study, who will be randomized to two groups - (1) Dry Needling and Therapeutic Exercises (DNTEx) and (2) Manual Therapy and Therapeutic Exercises (MTTEx). All participants will be treated for seven physical therapy treatment sessions of 30 minutes each over a maximum of 6 weeks. The primary outcome measure will NDI, which will evaluate disability of patients. While secondary outcome measures would be: NPRS (score range from 0 to 10) to assess pain, Patient-Specific Functional Scale [PSFS], (score ranges from 3 to 30) will measure a patient-specific measure of function important significant to them, Range of Motion (ROM) will measure changes in the motion of flexion, extension, bilateral rotation, and bilateral side-bending at the cervical spine, The Neck Flexor Endurance Test (NFET) will measure the improvement in the endurance of neck flexor muscles, Fear Avoidance Belief Questionnaire (FABQ) will measure patients' fear of pain with movements and resulting avoidance of physical activity because of their fear, and The Patient Global Rating of Change (GROC) will measure each patient's self-perceived improvement. An assessor, who is blinded to the group allocation, will collect all outcome measures at baseline, 2weeks, discharge session/7th treatment session, and 3 months after discharge/7th treatment session. An a priori alpha level of 0.05 will be used for all analyses. Investigators will examine the primary aim with a repeated-measures analysis of covariance (ANCOVA), using pretest scores as covariates, with treatment groups (Dry needling + Exercise Vs. MT + Exercise) as the between subjects' independent variables and time (baseline, 2 weeks, Discharge [7 sessions], 12 weeks post discharge) as the within-subjects independent variable. The hypothesis of interest is the 2-way group * time interaction.