Lead Sponsor

Taoyuan General Hospital

Age

20 - No limit years

Sex

ALL

Healthy Volunteers

No

•1. Patient at Taoyuan general hospital rehabilitation outpatient department during 2017/01/01 \~ 2018/12/31
•2. Diagnosis with knee osteoarthritis (ACR criteria or Kellgren and Lawrence grading II to IV)
•3. Suitable for shockwave therapy and physical therapy with (TENS + MF + stretching + strengthening exercise)
•4. Visual analog scale(VAS) ≧ 4

•1. Not suitable for shockwave therapy, including acute infection, osteomyelitis, coagulopathy, use of anticoagulants, pregnant women, patients with a pacemaker or implantable cardiac defibrillator
•2. Patients who can't understand Chinese, including aphasia or dementia
•3. Patient who can't receive 4 weeks of therapy
•4. Patient who can't walk due to peripheral neuropathy or central nerve system diseases
•5. Total knee arthroplasty
•6. Shockwave therapy of knee for the prior 3 months
•7. Skin defect or soft tissue infection over symptomatic knee
•8. Other cause of knee pain which can't treat with physical therapy, including: rheumatoid arthritis, infection, fracture, ligament disruption