Shock Wave Treatment in Patients With Knee Osteoarthritis
SWKO
Efficacy of Shock Wave Treatment to Reduce Pain and Improve Functionality in Patients With Knee Osteoarthritis: Randomized Clinical Trial.
1 other identifier
interventional
40
1 country
2
Brief Summary
Introduction: Knee osteoarthritis represents a significant health problem due to its impact on the functionality and quality of life of patients. Its treatment can be pharmacological, non-pharmacological, or surgical. Recently, the chondroprotective potential of shockwave therapy has been evidenced. Objective: To determine whether shockwave treatment combined with knee strengthening exercises is superior to knee strengthening exercises alone in reducing pain and improving function in patients with knee osteoarthritis. Method: A randomized controlled trial with allocation concealment is proposed. Patients with knee pain secondary to knee osteoarthritis will participate during their hospital admission. Two groups will be formed: both will follow an exercise program for three weeks, and the intervention group will add a weekly shockwave session during that same period. The main variable will be pain intensity; other variables include stiffness, functional capacity, degree of satisfaction, and data related to the application of therapy (frequency, intensity, number of pulses, side effects). Clinical data will also be collected such as reason for admission, age, sex, comorbidities, degree of dependency, walking ability, analgesia, use of assistive devices, and progress during treatment. Applicability: The results could lead to a change in clinical practice, serving as a basis for modifying treatment protocols for knee osteoarthritis in medium-stay hospitals. Furthermore, they would provide additional scientific evidence on the efficacy of shock wave therapy for this condition.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable knee-osteoarthritis
Started Nov 2025
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 8, 2025
CompletedFirst Posted
Study publicly available on registry
August 15, 2025
CompletedStudy Start
First participant enrolled
November 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2026
February 3, 2026
August 1, 2025
10 months
August 8, 2025
January 31, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Compare the magnitude of pain reduction between patients with knee osteoarthritis treated with shockwave therapy plus strengthening exercises and those treated only with strengthening exercises
To assess pain, the validated Visual Analog Scale (VAS) will be used. This scale represents pain intensity on a 10 cm horizontal line, where 0 corresponds to "no pain" and 10 to "the worst pain imaginable." The scores will be interpreted as follows: a score below 4 indicates mild or mild-to-moderate pain; a score between 4 and 6 suggests moderate to severe pain; and a score above 6 reflects the presence of intense or very severe pain.
From inclusion in the study until three months after the last treatment session
Secondary Outcomes (3)
To examine difference in knee functionality improvement between both treatment groups
From inclusion in the study until three months after the last treatment session.
To evaluate the difference in degree of disability
From inclusion in the study until three months after the last treatment session.
Analyze the level of patient satisfaction with the outcomes obtained from each therapeutic modality.
From inclusion in the study until three months after the last treatment session
Study Arms (2)
control group
ACTIVE COMPARATORIn the control group, a strengthening exercise program will be carried out for three weeks.
intervention group
ACTIVE COMPARATORIn the intervention group, in addition to the strengthening exercise program, 3 sessions of shock wave therapy (PiezoWave 2 Control Unit, classification 93/42/EEC class IIb) will be conducted, at a frequency of one session per week. The parameters for shock wave therapy will be: frequency 4-6 Hz, intensity 0.11-0.35 mJ/mm2, and number of pulses 2000 (applied to the femoral condyle and tibial plateau).
Interventions
3 sessions of shock wave therapy, frequency of one session per week
a strengthening exercise program will be carried out for three weeks
Eligibility Criteria
You may qualify if:
- Knee pain assessed according to the VAS scale, with a score equal to or greater than 4 in the last 3 months.
- Osteoarthritis grade 2 or 3 in the Kellgren-Lawrence classification.
- Informed consent signature
You may not qualify if:
- Stroke in the last 3 months, knee surgery in the last 3 months, intra-articular infiltration in the last 3 months, secondary knee osteoarthritis, chronic inflammatory disease
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Guadarrama Hospital
Guadarrama, Madrid, 28440, Spain
Hospital Guadarrama
Madrid, Madrid, 28440, Spain
Related Publications (13)
Wang CJ, Cheng JH, Chou WY, Hsu SL, Chen JH, Huang CY. Changes of articular cartilage and subchondral bone after extracorporeal shockwave therapy in osteoarthritis of the knee. Int J Med Sci. 2017 Feb 23;14(3):213-223. doi: 10.7150/ijms.17469. eCollection 2017.
PMID: 28367081BACKGROUNDLiao CD, Huang YY, Chen HC, Liou TH, Lin CL, Huang SW. Relative Effect of Extracorporeal Shockwave Therapy Alone or in Combination with Noninjective Treatments on Pain and Physical Function in Knee Osteoarthritis: A Network Meta-Analysis of Randomized Controlled Trials. Biomedicines. 2022 Jan 28;10(2):306. doi: 10.3390/biomedicines10020306.
PMID: 35203516BACKGROUNDAvendano-Coy J, Comino-Suarez N, Grande-Munoz J, Avendano-Lopez C, Gomez-Soriano J. Extracorporeal shockwave therapy improves pain and function in subjects with knee osteoarthritis: A systematic review and meta-analysis of randomized clinical trials. Int J Surg. 2020 Oct;82:64-75. doi: 10.1016/j.ijsu.2020.07.055. Epub 2020 Aug 13.
PMID: 32798759BACKGROUNDWang CJ, Wang FS, Yang KD, Weng LH, Hsu CC, Huang CS, Yang LC. Shock wave therapy induces neovascularization at the tendon-bone junction. A study in rabbits. J Orthop Res. 2003 Nov;21(6):984-9. doi: 10.1016/S0736-0266(03)00104-9.
PMID: 14554209BACKGROUNDChen YJ, Wang CJ, Yang KD, Kuo YR, Huang HC, Huang YT, Sun YC, Wang FS. Extracorporeal shock waves promote healing of collagenase-induced Achilles tendinitis and increase TGF-beta1 and IGF-I expression. J Orthop Res. 2004 Jul;22(4):854-61. doi: 10.1016/j.orthres.2003.10.013.
PMID: 15183445BACKGROUNDBerta L, Fazzari A, Ficco AM, Enrica PM, Catalano MG, Frairia R. Extracorporeal shock waves enhance normal fibroblast proliferation in vitro and activate mRNA expression for TGF-beta1 and for collagen types I and III. Acta Orthop. 2009 Oct;80(5):612-7. doi: 10.3109/17453670903316793.
PMID: 19916698BACKGROUNDMittermayr R, Hartinger J, Antonic V, Meinl A, Pfeifer S, Stojadinovic A, Schaden W, Redl H. Extracorporeal shock wave therapy (ESWT) minimizes ischemic tissue necrosis irrespective of application time and promotes tissue revascularization by stimulating angiogenesis. Ann Surg. 2011 May;253(5):1024-32. doi: 10.1097/SLA.0b013e3182121d6e.
PMID: 21372687BACKGROUNDUysal A, Yildizgoren MT, Guler H, Turhanoglu AD. Effects of radial extracorporeal shock wave therapy on clinical variables and isokinetic performance in patients with knee osteoarthritis: a prospective, randomized, single-blind and controlled trial. Int Orthop. 2020 Jul;44(7):1311-1319. doi: 10.1007/s00264-020-04541-w. Epub 2020 Mar 26.
PMID: 32215674BACKGROUNDESWT Guidelines English version Updated and agreed from the ISMST Managing Board, in close cooperation with the Germanspeaking Society for Extracorporeal Shockwave Therapy (DIGEST) Daegu, South Korea July 20th, 2023 .ISMST-Guidelines-for-ESWT-_-engl-20240103.pdf
BACKGROUNDMoya D, Ramon S, Schaden W, Wang CJ, Guiloff L, Cheng JH. The Role of Extracorporeal Shockwave Treatment in Musculoskeletal Disorders. J Bone Joint Surg Am. 2018 Feb 7;100(3):251-263. doi: 10.2106/JBJS.17.00661. No abstract available.
PMID: 29406349BACKGROUNDAn S, Li J, Xie W, Yin N, Li Y, Hu Y. Extracorporeal shockwave treatment in knee osteoarthritis: therapeutic effects and possible mechanism. Biosci Rep. 2020 Nov 27;40(11):BSR20200926. doi: 10.1042/BSR20200926.
PMID: 33074309BACKGROUNDGiaretta S, Magni A, Migliore A, Natoli S, Puntillo F, Ronconi G, Santoiemma L, Sconza C, Viapiana O, Zanoli G. A Review of Current Approaches to Pain Management in Knee Osteoarthritis with a Focus on Italian Clinical Landscape. J Clin Med. 2024 Aug 31;13(17):5176. doi: 10.3390/jcm13175176.
PMID: 39274389BACKGROUNDJhan SW, Wang CJ, Wu KT, Siu KK, Ko JY, Huang WC, Chou WY, Cheng JH. Comparison of Extracorporeal Shockwave Therapy with Non-Steroid Anti-Inflammatory Drugs and Intra-Articular Hyaluronic Acid Injection for Early Osteoarthritis of the Knees. Biomedicines. 2022 Jan 18;10(2):202. doi: 10.3390/biomedicines10020202.
PMID: 35203417BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Yunia H Labrada Rodríguez, MD, MSc
Guadarrama Hospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 8, 2025
First Posted
August 15, 2025
Study Start
November 1, 2025
Primary Completion (Estimated)
September 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
February 3, 2026
Record last verified: 2025-08
Data Sharing
- IPD Sharing
- Will not share