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Effect of transcranial direct current stimulation at the left dorsolateral prefrontal cortex (DLPFC) combined with quadriceps strengthening exercise in chronic knee osteoarthritis: A double blinded, randomised sham-controlled trial

Effect of transcranial direct current stimulation at the left dorsolateral prefrontal cortex (DLPFC) combined with quadriceps strengthening exercise in chronic knee osteoarthritis: A double blinded, randomised sham-controlled trial

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20210802001
Enrollment
32
Registered
2021-08-02
Start date
2021-09-20
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

clinical pain severity in chronic knee osteoarthritis. Transcranial direct current stimulation, Chronic knee osteoarthritis, Dorsolateral prefrontal cortex, Pain

Interventions

Participants will receive 20 min of tDCS before exercise by qualified physiotherapist. The program was generated for 3 times per week for 4 weeks (12 sessions). Moreover, all participants will be taug
Active tDCS plus exercise,Sham tDCS plus exercise

Sponsors

Faculty of Medicine, Chulalongkorn University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. Age 50 - 90 years old 2. Diagnosed chronic knee osteoarthritis by American College of Rheumatology present with knee joint pain plus at least 3 of following 2.1 Age more than 50 yr 2.2 Morning stiffness more than 30 mins 2.3 Crepitus 2.4 Bony enlargement 2.5 Bony tenderness 2.6 No palpable warmth 3. Clinical knee pain by VAS 40-70 mm 4. Kellgren and Lawrence classification system grading 1 - 3 5. Knee pain at least 3 mo. 6. Can sit with support more than 20 mins 7. Not participate in others trial 8. Willing to participate by themselves

Exclusion criteria

Exclusion criteria: 1. Hemodynamic or Neurological condition not stable 2. Cannot communicate or follow command 3. Acute inflammation on studied side 4. Knee joint replacement on studied side 5. History of intraarticular injection at studied side: steroid within 3 months and hyaluronic acid within 6 month 6. Have to had pain killer such as NSIADs within 2 weeks 7. History of MDD 8. History of non-invasive brain stimulation such as transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS) 9. Contraindications to tDCS 9.1 Skin pathology, infection, wound, vasculitis at stimulate site 9.2 History of bleeding tendency 9.3 History of seizure or in family 9.4 History of migraine 9.5 History of brain surgery 9.6 History of traumatic brain injury which alteration of conscious more than 15 min 9.7 Neurodeficit 9.8 Implanted metal device: pacemaker, metal plate, wires 9.9 Pregnancy 9.10 History adverse effect from other brain stimulation

Design outcomes

Primary

MeasureTime frame
Clinical pain severity Before and after intervention, past 4 wk after intervention Visual analogue scale (mm)

Secondary

MeasureTime frame
Physical function Before and after intervention, past 4 wk after intervention WOMAC score (questionaire),Pressure pain threshold Before and after intervention, past 4 wk after intervention digital algometer (kPa)),Quality of life Before and after intervention, past 4 wk after intervention The Short Form Health Survey-36 questionaire

Countries

Thailand

Contacts

Public ContactKanlayanee Boonprasit

Resident

b.kanlayanee138@gmail.com0867066679

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026