Repetitive Transcranial Magnetic Stimulation Associated With Manual Therapy in Knee Ostearthritis Pain
1 other identifier
interventional
15
1 country
2
Brief Summary
In this study, the investigators wondered whether the association between high frequency repetitive transcranial magnetic stimulation (hf-rTMS) and manual therapy (peripheral and central approach) is more effective in reducing pain levels and modulation of cortical activity of chronic knee ostearthritis pain subjects than manual therapy alone (usual peripheral approach). For this purpose, patients included will be submitted to one session with active or sham hf-rTMS followed by a protocol of manual therapy. Besides that another active group will have the sequence of interventions exchanged (manual therapy followed by hf-rTMS) in order to investigate whether this may influence in the final outcomes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2 knee-osteoarthritis
Started Jan 2017
Typical duration for phase_2 knee-osteoarthritis
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2017
CompletedFirst Submitted
Initial submission to the registry
March 6, 2017
CompletedFirst Posted
Study publicly available on registry
March 10, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2019
CompletedMarch 10, 2017
March 1, 2017
1.2 years
March 6, 2017
March 6, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Pain
Pain will be evaluated by pressure algometry before and after the interventions. It's a evaluation technique which aims to quantify through physical stimulation (pressure in the nociceptors) the capacity of pain perception and toleration. It will be used with the patient lying in supine and will have the purpose of measure the pressure pain threshold (PPT) in eight points around patellar region. Besides that, two control points will be adopted, one in anterior tibial muscle (five centimeters distal of anterior tibial tuberosity) and another in the extensor carpi radialis longus muscle (five centimeters distal to lateral humerus epicondyle). After marking, the algometer will be setted up 90° in contact with the skin and will be applied a 0,3 kgf/cm²/s pressure until the patient report pain by pressing a pen (Model/Brand: Algomed/Medoc). The measure will be done twice in the demarcated points with a two minutes interval between them. Will be considered a mean of the obtained values.
Until one day (before and after the interventions)
Pain Rating Scale (NPRS)
Is it used to quantify pain level, where 0 means no pain and 10 means worst pain possible. NPRS is recommended as the main endpoint in chronic pain studies and it has been established that a decrease of at least 2 points or 30% represents a minimal clinically important difference. The MDCI consists of the smaller variation in a clinical outcome perceived by the patient and that results in a relevant change in his state of health.
Until 30 days (before, after the interventions and until the last day with the same value of the first evaluation)
Secondary Outcomes (1)
Cortical excitability
One day (before and after the interventions)
Study Arms (3)
MT after rTMS group
EXPERIMENTALHigh frequency TMS will be applied with an eight-shaped coil angled at zero degrees from the sagittal axis and positioned at the C3 or C4 in accordance with the international 10-20 marking system (JASPER, 1958), which corresponds to the right or left primary motor cortex (M1). Twenty four stimulus trains will be provided at 10 Hz for five seconds each. The interval between the trains will be 25 seconds, totaling 1200 pulses for approximately 12 minutes, with 90% of resting motor threshold (RMT). After TMS, patients will be submitted to 45 minutes of manual therapy protocol.
rTMS after MT group
EXPERIMENTALPatients will be submitted to 45 minutes of manual therapy protocol. After that, high frequency TMS will be applied with an eight-shaped coil angled at zero degrees from the sagittal axis and positioned at the C3 or C4 in accordance with the international 10-20 marking system (JASPER, 1958), which corresponds to the right or left primary motor cortex (M1). Twenty four stimulus trains will be provided at 10 Hz for five seconds each. The interval between the trains will be 25 seconds, totaling 1200 pulses for approximately 12 minutes, with 90% of resting motor threshold (RMT).
Control group
SHAM COMPARATORIn this group, the order of interventions will be randomized. Therefore, the volunteer can start with manual therapy or sham TMS. In manual therapy, patients will be submitted to 45 minutes of a protocol. In addition, with regard to sham TMS, the same parameters will be used, however, it will be performed using two coils, one connected to the magnetic stimulator, away from the patient's scalp and another uncoupled from the stimulator and positioned in the same way as in real stimulation.
Interventions
Repetitive TMS involves application of electric currents in the patient's cortex by a magnetic field applied to the scalp of the patient through an eight-coil connected to a magnetic stimulator (MagStim Rapid² magnetic stimulator-UK). In a small percentage of patients, it may cause minimal discomfort with a mild headache sensation, which usually disappears after a few seconds. Depending on the parameters, rTMS can increase or decrease corticomotor excitability and by the connection of the motor cortex with the thalamus, influencing pain control. The patients will respond to an adverse effects questionnaire and will report the perception of real or sham stimulation.
This intervention uses manual contact for diagnosis and treatment, its practitioners use an enormous amount of manual techniques to preserve the homeostasis through the recovery of dysfunctions, which may cause limitations in the physiological movements, in the accessory movements of the joints (WHO , 2010).
Eligibility Criteria
You may qualify if:
- Diagnosis of knee OA;
- Absence of severe cognitive deficiency verified by the Mini Mental State Examination;
- Meet the American College of Rheumatology criteria for idiopathic knee osteoarthritis.
You may not qualify if:
- Individuals diagnosed with osteoporosis, fibromyalgia or other neurological disease;
- Had an opioid or corticosteroid injection in the last 30 days;
- Modified chronic pain medication in the last month before participating in the study;
- History of knee surgery in the last six months;
- Obese;
- Contraindications to the use of non-invasive brain stimulation, such as: metal implant on face or skull, history of seizure, cochlear implant.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Applied Neuroscience Laboratory, Universidade Federal de Pernambuco
Recife, Pernambuco, 50670-900, Brazil
Kinesiotherapy and manual therapeutic resources laboratory
Recife, Pernambuco, 50670-900, Brazil
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Kátia Monte-Silva, PhD
Applied Neuroscience Laboratory, Universidade Federal de Pernambuco
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- PhD
Study Record Dates
First Submitted
March 6, 2017
First Posted
March 10, 2017
Study Start
January 1, 2017
Primary Completion
March 1, 2018
Study Completion
March 1, 2019
Last Updated
March 10, 2017
Record last verified: 2017-03