AI Article Synopsis

  • Patellar tendinopathy, or jumper's knee, is a painful condition affecting athletes, prompting a study to evaluate the effectiveness of platelet-rich plasma (PRP) treatments alone and combined with extracorporeal shockwave therapy (ESWT).
  • The study involved 33 athletes randomly assigned to receive either PRP with sham treatment or PRP plus ESWT, with follow-ups over a year to assess pain reduction and functional improvements.
  • Results indicated that combining PRP with ESWT led to quicker pain relief and improved outcomes without causing discomfort or injury, supporting its effectiveness for treating chronic patellar tendinopathy in athletes.

Article Abstract

Background: Patellar tendinopathy, also known as jumper's knee, can significantly impact the quality of daily life for patients due to the associated pain. A randomized controlled trial was investigated the clinical, sonographic, and serum cytokine markers in patellar tendinopathy of athletes following platelet-rich plasma (PRP) or PRP with extracorporeal shockwave therapy (ESWT) treatments. Our aims to investigate and compare therapeutic effects of PRP versus a combination of PRP with ESWT for treating patellar tendinopathy.

Methods: A total of 33 athletes with patellar tendinopathy were randomized into two groups. PRP + Sham (PS) group received intraarticular injection of autologous PRP (5 mL) once and sham ESWT. PRP + ESWT (PE) group received intraarticular injection of autologous PRP once and after 1 week ESWT (0.2 mJ/mm energy flux density, 1350 impulses, 4 Hz) once. All patients were followed up for 1 year.

Results: Autologous PRP injection and its combination with ESWT are both effective treatments for chronic patellar tendinopathy in athletes. PRP combined with ESWT resulted in faster reduction of knee pain than PRP alone at the 1-month follow-up. Serum IL-33 showed no significant difference at the 12-month follow-up. Levels of interleukin (IL)-6, IL-15, and IL-17 increased at the 12-month follow-up, potentially due to the additional training. However, the athletes did not report any discomfort or injuries, and no abnormalities were detected by ultrasonography after study. We demonstrated improvements in pain and functional scores, as well as knee injury protection in athletes, following 12 months of PRP and PRP with ESWT treatments.

Conclusions: The study analyzed the therapeutic effect of PRP injection alone and combining PRP injection with ESWT for chronic patellar tendinopathy. Our results showed that combined treatment can facilitate the pain relief early than PRP alone and is a safety treatment modality. No adverse effect was noted in our study. Trial registration Research registry and the registration number is researchregistry9518. Registered 14 September 2023. https://www.researchregistry.com/browse-the-registry#home/registrationdetails/650263e4f549fd00282a338c/ . The level of evidence is level II.

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http://dx.doi.org/10.1186/s43019-024-00252-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11650825PMC

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Article Synopsis
  • Patellar tendinopathy, or jumper's knee, is a painful condition affecting athletes, prompting a study to evaluate the effectiveness of platelet-rich plasma (PRP) treatments alone and combined with extracorporeal shockwave therapy (ESWT).
  • The study involved 33 athletes randomly assigned to receive either PRP with sham treatment or PRP plus ESWT, with follow-ups over a year to assess pain reduction and functional improvements.
  • Results indicated that combining PRP with ESWT led to quicker pain relief and improved outcomes without causing discomfort or injury, supporting its effectiveness for treating chronic patellar tendinopathy in athletes.
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Incidence of lower limb tendinopathy: A 3-year prospective study of a youth elite athletes in a Brazilian sport club.

J Bodyw Mov Ther

October 2024

Physical Therapy Department, School of Physical Education, Physiotherapy and Occupational Therapy, Universidade Federal de Minas Gerais, Brazil. Electronic address:

Introduction: The purpose of this study was to investigate lower limb tendinopathy incidence over 3 seasons in Brazilian youth elite athletes.

Design: Prospective epidemiological study.

Methods: A prospective study was performed during 2015, 2016 and 2017 seasons, with a total of 1553 Brazilian youth athletes (1.

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Patellar tendinopathy is a highly prevalent clinical diagnosis supported by ultrasound changes. Numerous interventions are targeted at improving both symptoms and structure of dysfunctional tendons, however little is known of the diagnostic value in a changing ultrasound profile whilst patient-reported outcome measures (PROMs) determine recovery. The aim is to assess if changes in ultrasound measures are congruent with changes in Victorian Institute of Sports Assessment - Patella (VISA-P) scores, thereby supporting the use of ultrasound to assess patellar tendinopathy during symptom improvement.

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Aim: To propose a standardized, high-resolution ultrasound (US) protocol to assess the patellar tendon-Hoffa fat pad interface (PTHFPI) in patients with (proximal) patellar tendinopathy (PPT).

Methods: Using a high-frequency transducer and a high-level machine, we matched the cadaveric and histological microarchitecture of the PTHFPI with multiple sonographic patterns of patients with PPT. Likewise, high-sensitive color/power Doppler assessments were also performed to evaluate the microcirculation of the soft tissues beneath the patellar tendon.

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