Brain Effect Mechanism of Spinal Manipulative Therapy on LDH Analgesia Based on Multimodal MRI

Not Applicable

Completed

• Conditions: Lumbar Disc Herniation
• Interventions: Procedure: Spinal Manipulative Therapy; Other: Sham Laser Treatment

• Registration Number: NCT06277739
• Lead Sponsor: Zhou Xingchen

Brief Summary

The clinical symptoms of Lumbar Disc Herniation (LDH) can be effectively ameliorated through Spinal Manipulative Therapy (SMT), which is closely linked to the brain's pain-regulating mechanisms. Magnetic Resonance Imaging (MRI) offers an objective and visual means to study how the brain orchestrates the characteristics of analgesic effects. From the perspective of multimodal MRI, the investigators applied functional MRI (fMRI) and Magnetic Resonance Spectrum (MRS) techniques to comprehensively evaluate the characteristics of the effects of SMT on the brain region of LDH from the aspects of brain structure, brain function and brain metabolism. This multimodal MRI technique provides a biological basis for the clinical application of SMT in LDH.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-06-01
• Study First Submitted: 2024-02-14
• Study First Submitted QC: 2024-02-18
• Study First Posted: 2024-02-26
• Primary Completion: 2025-05-01
• Study Completion: 2025-05-01
• Status Verified: 2025-06
• Last Update Submitted: 2025-06-13
• Last Update Posted: 2025-06-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 90

Inclusion Criteria

• Participants must meet the diagnostic criteria for lumbar disc herniation, including protrusion types such as central, paracentral, far lateral, foraminal, and subarticular, with imaging findings that align with neurological localization.
• The age range for participants is 18 to 65 years, encompassing any gender, and they must be right-handed.
• Participants should be in the non-acute phase of the condition, experiencing mild to moderate pain and functional impairment, with the duration of symptoms exceeding 2 weeks.
• Participants should have a Visual Analog Scale (VAS) score greater than 4 and Japanese Orthopaedic Association (JOA) scores less than 15.
• Eligible participants must not have taken analgesics, neurotropic nutrition drugs, or sedatives in the past month and should not have undergone systemic treatment.
• Participants should not have received spinal manipulation or other physical therapies in the past month.
• Participants must voluntarily agree to participate in this study and have signed an informed consent form.

Exclusion Criteria

• Patients with concurrent internal medicine or gynecological conditions known to cause lower back pain, such as nephritis, urinary stones, gynecological inflammations, and uterine abnormalities.
• Individuals with severe primary diseases impacting the cardiovascular, cerebrovascular, liver, or kidney systems.
• Those with neurogenic functional disorders, psychiatric conditions, a history of significant head trauma, or a history of unconsciousness.
• Individuals diagnosed with primary sciatica or dry sciatica.
• Those with lumbar spondylolisthesis.
• Patients suffering from lumbar tumors or tuberculosis.
• Individuals with severe osteoporosis or localized skin lesions in the lumbar area.
• Patients experiencing painful conditions beyond the lumbar region.
• Those with diseases characterized by structural changes in the brain.
• Individuals with impaired consciousness, severe visual or hearing impairments, speech disorders, or others who are unable to complete health assessments.
• Individuals with dental implants, metal stents, or other elements that may compromise MRI imaging.
• Those with a fear of MRI or other reasons that prevent undergoing MRI scans.
• Patients diagnosed with lumbar disc herniation but who are asymptomatic.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group1 (Spinal Manipulation Therapy)	Spinal Manipulative Therapy	The participant was placed in a side-lying position facing the clinician with the more painful side facing upward. The clinician passively flexed the participant's hips and knees to induce lumbar spine flexion until they felt the spinous process of the affected lumbar vertebrae begin to move. Next, the clinician passively rotated the participant's torso opposite to the side they were lying on until they felt rotation in the vertebra above the suspected lesion. The clinician applied a rapid thrust to the shoulder (anterior to posterior force) and pelvis (posterior to anterior force) resulting in a rotation force couple on the hypomobile segment.
Group2 Sham Laser Treatment)	Sham Laser Treatment	The laser manufacturer (MedX Health Corp) provided a MedX 1100 system that did not deliver any significant amount of light energy or heat but otherwise appeared operational to participants and clinicians. The sham laser was delivered over the painful region with the study participant positioned as described for spinal manipulation and spinal mobilization treatments.

Primary Outcome Measures

Name	Time	Method
Japanese Orthopaedic Association Scores (JOA)	up to one months	Japanese Orthopaedic Association Scores (JOA), ranging from 0 (worst) to 100 (best), was used to evaluate the clinical state.
Magnetic Resonance Spectrum （MRS）	up to one month	The MRS Is the only technology capable of non-invasive quantitative detection of brain substance changes.
visual analogue scale (VAS)	up to one month	Pain intensity was evaluated by means of a visual analogue scale (VAS) \[10-point visual analogue scale: 0 = no pain; 10 = very severe pain\].
Amplitude of Low-Frequency Fluctuation (ALFF)	up to one months	The ALFF measures the activity of neurons in the brain that are not affected by external factors.
Regional Homogeneity (ReHo)	up to one months	The ReHo measures the consistency of the local functional activities of the brain's various regions.
Functional Connectivity (FC)	up to one months	The FC represents the strength Of functional connections between brain regions, and can reflect the temporal correlation between the Region Of Interest (ROI) and the whole brain networking function.

Trial Locations

Locations (1)

The Third Affiliated Hospital of Zhejiang Chinese Medical University; 🇨🇳 Hangzhou, Zhejiang, China