patellar tendinopathy jumper's knee shockwave therapy springersknie patella tendinopathie schokgolftherapie
Conditions
Interventions
Extracorporeal shockwave therapy
Sponsors
UMCG
Eligibility
Inclusion criteria
Inclusion criteria: Male and female athletes with the following criteria are eligible for inclusion: 1. History of knee pain in patellar tendon or its patellar or tibial insertion (pointed out in a anatomical drawing of the knee) in connection with training and competition 2. Symptoms for over three months in the actual season or in the second half of the previous season (January – May 2008) (to exclude acute inflammatory tendon problems and de novo partial ruptures) 3. Age 18-35 years old (to reduce the chance of other osteochondrotic diseases like Sinding-Larsen-Johanson, Osgood-Schlatter and osteoarthrosis) 4. Palpation tenderness to the corresponding painful area 5. VISA score < 80
Exclusion criteria
Exclusion criteria: 1. Acute knee or patellar tendon injuries 2. Chronic joint diseases 3. Signs or symptoms of other coexisting knee pathology 4. Contraindications for ESWT (pregnancy, malignancy, coagulopathy) 5. Knee surgery or injection therapy with corticosteroids in the last preceding three months 6. Daily use of drugs with a putative effect on patellar tendinopathy in the last year (e.g. non-steroid anti-inflammatory drugs, fluorchinolones) or actual use of anticoagulants
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| VISA-score | — |
Secondary
| Measure | Time frame |
|---|---|
| • Answer to the question: “How is your knee now as compared with before treatment?”, by marking an 11-point visual numerical scale, with +5 representing maximum improvement (no symptoms), 0 representing no change, and –5 representing maximum worsening (severe symptoms) • Rate the pain on a Visual Analogue Scale (VAS) in which 0 represents no pain, and 100 maximal pain: - during activities of daily living (ADL), - during sports, - during a functional test: the single leg decline squat (SLDS); the athlete performs ten times a single leg squat to 60° of knee flexion on a 25° decline board. This test was designed to preferentially load the patellar tendon (20, 24). - during a jumping test: the athlete performs ten maximal jumps • Rate overall treatment satisfaction, with use of a 4-grade scale as “no symptoms”, improved, but still symptomatic”, “no change”, “worse”. • Answer the question if they would recommend ESWT treatment to family or friends; “yes” or “no”. • Ultrasound characteristics (hypo-echogenity, diameter, calcifications, neovascularisation) • Side effects and adverse reactions/events | — |
Contacts
Public ContactJ. Zwerver
University Medical Center Groningen (UMCG) Sports medicine physician
Outcome results
None listed