NCT05613179

Brain Effect Mechanism of Lever Positioning Manipulation on LDH Analgesia Based on Multimodal MRI

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 90 (actual)
• Sponsor: The Third Affiliated hospital of Zhejiang Chinese Medical University · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

In order to further investigate the key brain targets and central response mechanism characteristics of analgesia, the dominant disease of LDH was taken as the object of this study, which was divided into operation group, comfort group and healthy subjects group. Firstly, DTI probabilistic tracking method was used to detect the changes of the brain white matter in each group. Then, the low-frequency amplitude (mfalff) and local consistency (ReHo) of each group were compared by fMRI scanning imaging technology, and the features of local brain functional connectivity (FC) of pain matrix related brain regions as seed points were analyzed. Finally, MRS Technique was used to detect the brain signals of related metabolites glutamic acid (Glu) and 1-aminobutyric acid (GABA), so as to elucidate the network regulation of lever-positioning operation on the analgesic brain effect of LDH and the biochemical mechanism of central nervous system. This multimodal MRI technique provides biological basis for the clinical application of lever localization in LDH.

Conditions

• Lumbar Disc Herniation
• Multimodal Brain Function
• Analgesia Mechanism
• Lever Positioning Manipulation

Interventions

Type	Name	Description
PROCEDURE	Group1 (lever positioning manipulation)	The specific lever positioning manipulation is as follows: the patient lies prone at the mouth-open position with muscles relaxed, waist exposed, knees and hips bent, and ankle joints crossed. The practitioner uses the right elbow olecranon to point at the lumbar vertebrae, then hold the patient's two ankle joints in both hands to cause the lumbar vertebra to make hyperextension and flexion movements through the arms and pull the patient backward and upwards hard. When pulling upwards to the trigger point, the practitioner pulls wit lever quickly with a technique and then senses a clatter or looseness at the positioning point. When the practitioner pulls with lever manipulation, the patient is asked to exhale and then inhale at the end of the manipulation.
PROCEDURE	Group2 (placebo group)	The specific sham lever positioning manipulation is as follows: the patient lies prone with his mouth open, muscles relaxed, waist exposed, knees bent at the hip and ankles crossed. The practitioner points to the lumbar spine with the right elbow olecranon, and then holds the patient's two ankles in both hands, so that the lumbar spine through the arm for overextension and flexion, and forcefully pulls the patient back and up. When pulling up to the trigger point, maintain this movement for a short period of time, depending on the patient's endurance, about 1-5 minutes. After finishing, ask the patient to rest in prone position.

Timeline

• Start date: 2021-09-01
• Primary completion: 2025-05-01
• Completion: 2025-05-01
• First posted: 2022-11-14
• Last updated: 2025-06-15

Locations

1 site across 1 country: China