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Does platelet-rich plasma improve patellar tendinopathy symptoms?
Emily Wolfenden1, Brian Vukelic1, Matthew DeMarco1
1University of Utah, Salt Lake City.
The Journal of Family Practice
|June 22, 2022
Summary
Platelet-rich plasma (PRP) injections show unclear effectiveness for patellar tendinopathy recovery. High-quality evidence is lacking, with small studies yielding mixed or negative results compared to placebo.
Area of Science:
- Orthopedics
- Sports Medicine
- Regenerative Medicine
Background:
- Patellar tendinopathy is a common condition causing anterior knee pain.
- Platelet-rich plasma (PRP) injections are explored as a treatment option.
- Evidence for PRP effectiveness in patellar tendinopathy remains debated.
Purpose of the Study:
- To evaluate the effectiveness of platelet-rich plasma (PRP) injections for symptomatic recovery in patellar tendinopathy.
- To assess the quality of evidence supporting PRP use in this condition.
Main Methods:
- Systematic review and analysis of randomized controlled trials (RCTs).
- Focus on high-quality evidence comparing PRP to placebo or control groups.
- Inclusion of studies assessing symptomatic recovery and functional outcomes.
Main Results:
- Three small RCTs (total 111 patients) provided the basis for the assessment.
- One RCT found no significant improvement with PRP compared to controls.
- Two RCTs reported mixed results, with outcomes varying by follow-up duration and measurement metrics.
Conclusions:
- High-quality data have not consistently established the effectiveness of PRP injections for patellar tendinopathy.
- Current evidence is limited by small study sizes and heterogeneous findings.
- Further robust research is needed to clarify the role of PRP in managing patellar tendinopathy.
