Clinical Effectiveness and Feasibility of Platelet Rich Plasma Injection in Patients with Chronic Patellar Tendinopathy

Completed

Conditions: Jumper's Knee
patellar tendinopathy
10043237

Registration Number: NL-OMON34982

Lead Sponsor: niversitair Medisch Centrum Groningen

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Completed

Sex: Not specified

Target Recruitment: 20

Inclusion Criteria

• History of knee pain in the proximal section of the patellar tendon or its patellar insertion (pointed out in a anatomical drawing of the knee) in connection with training and competition
• Symptoms for over twelve months (current symptoms for at least three months)
• Age 18-40 years old
• Palpation tenderness to the corresponding painful area
• VISA score < 80
• Ultrasound characteristics showing hypoechoic zones in the corresponding area
• Recalcitrant to conservative treatment (at least eccentric training)

Exclusion Criteria

• acute knee or patellar tendon injuries
• chronic joint diseases
• signs or symptoms of other coexisting knee pathology
• pregnancy
• Bleeding disorders and haematological disaeses
• Malignancy
• knee surgery
• injection of any kind in the patellar tendon in the last preceding three months
• use of NSAID*S in the last 5 days before or first 6 weeks after injection or daily use of drugs with a putative effect on patellar tendinopathy in the last year (e.g. non-steroid anti-inflammatory drugs, fluorchinolones)
• actual use of anticoagulants

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Part I<br /><br>Side effects and adverse reactions/events. Experiences of the patients.<br /><br><br /><br>Part II<br /><br>Self reported VISA-P score<br /><br>The Dutch VISA-P score is a simple, reliable instrument for measuring the<br /><br>severity of patellar tendinopathy and is sensitive to small changes in<br /><br>symptoms. It was specifically designed for patellar tendinopathy, rating pain,<br /><br>symptoms, simple test of function and the ability to play sports. Six of the<br /><br>eight questions are scored on a VAS from 0 to 10 points, with 10 representing<br /><br>optimal health. The maximum VISA-P score for an asymptomatic athlete is 100<br /><br>points. The VISA-P score will be obtained for both legs separately. </p><br>

Secondary Outcome Measures