Efficacy of Electroacupuncture Combined With Auricular Acupressure for Chronic Low Back Pain.

Efficacy of Electroacupuncture Combined With Auricular Acupressure in Patients With Chronic Low Back Pain Due to Lumbar Spondylosis With Kidney Yin Deficiency Syndrome: A Randomized Controlled Trial.

Chronic low back pain (CLBP) due to lumbar spondylosis is a leading cause of disability, significantly impacting the quality of life in middle-aged and elderly populations. While electroacupuncture (EA) and auricular acupressure (AA) are recognized as safe, non-pharmacological therapies, high-quality clinical evidence specifically evaluating their combined effects on CLBP patients with TCM "Kidney Yin deficiency" syndrome remains limited.This randomized controlled trial aims to evaluate the efficacy and safety of combining EA with AA (utilizing Vaccaria segetalis seeds) compared to EA combined with sham AA. The study will focus on 76 eligible patients at Le Van Thinh Hospital. Primary objectives are to measure changes in pain intensity (VAS) and functional improvement (ODI) at three intervals: baseline (T0), after 7 days (T1), and upon completion of the 14-day intervention (T2). The findings are expected to provide an evidence-based foundation for an integrated treatment approach to manage chronic lumbar pain effectively.

76 eligible patients with CLBP due to lumbar spondylosis (Kidney Yin deficiency syndrome) will be enrolled in this study. Participants will be randomly assigned to either the experimental or control group using a computer-generated randomization list (Microsoft Excel 365) with a 1:1 allocation ratio. Allocation concealment will be ensured using opaque, sealed envelopes.

• The experimental group will receive 20 minutes of electroacupuncture combined with auricular acupressure at Shenmen (TF4), Subcortex (AT4), Lumbar spine (AH9), and Kidney (CO10) acupoints.
• The control group will receive 20 minutes of electroacupuncture combined with sham auricular acupressure at Anus (HX5), Shoulder (SF4), Lung (CO14), and Tooth (LO1) acupoints.
• Both groups will undergo interventions once a day, 5 times a week, for 2 weeks (total 10 sessions). Clinical outcomes including the Visual Analog Scale (VAS), Oswestry Disability Index (ODI), and adverse events will be evaluated at baseline (T0), day 7 (T1), and day 14 (T2).

Inclusion Criteria:

• Age between 40 and 70 years.
• Low back pain persisting for ≥ 12 weeks.
• Pain intensity: 30 ≤ VAS ≤ 70.
• Disability index: ODI ≥ 10%.
• Diagnosed with Lumbar Spondylosis by a physician, supported by clinical signs (mechanical pain) and imaging (X-ray or MRI showing degeneration).
• Diagnosed with Kidney Yin deficiency syndrome by a certified TCM physician, exhibiting symptoms such as: lower back/knee soreness, afternoon fever/hot flashes, night sweats, tinnitus, dry mouth, red tongue, or rapid/fine pulse.
• Voluntary consent to participate.

Exclusion Criteria:

• Contraindications to auricular acupressure (e.g., ear skin infection) or electroacupuncture (e.g., pregnancy, severe heart failure, surgical indications, pacemakers, metal implants).
• Specific causes of low back pain (e.g., infection, tumor, osteoporosis, ankylosing spondylitis, fracture).
• Disc herniation with surgical indications (e.g., muscle atrophy, severe limb weakness, or sphincter dysfunction).
• Currently participating in other interventional studies.
• Currently taking medications that may affect study outcomes (painkillers, muscle relaxants, antidepressants, TCM drugs).