What is the diagnosis and treatment for patellar tendinosis (jumper's knee)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: May 16, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

Patellar tendinosis should be treated with a combination of relative rest, eccentric strengthening exercises, and pain management, with surgery considered only in cases where conservative therapy has failed for 3-6 months. The treatment of patellar tendinosis typically involves a multifaceted approach, including reducing activities that cause pain, applying ice for 15-20 minutes several times daily to decrease inflammation, and taking non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen (400-800mg three times daily with food) or naproxen (500mg twice daily) for pain relief, but limiting use to 1-2 weeks to avoid side effects 1.

Key Recommendations

  • Reduce activities that cause pain and apply ice for 15-20 minutes several times daily to decrease inflammation
  • Take NSAIDs like ibuprofen (400-800mg three times daily with food) or naproxen (500mg twice daily) for pain relief, but limit use to 1-2 weeks to avoid side effects
  • Perform eccentric strengthening exercises, particularly slow, controlled squats and leg extensions, daily: 3 sets of 15 repetitions, gradually increasing resistance as tolerated 1
  • Stretching the quadriceps and hamstrings helps maintain flexibility
  • Consider a patellar tendon strap worn just below the kneecap during activities for persistent cases
  • Corticosteroid injections are generally avoided as they may weaken the tendon 1
  • Surgery is an effective treatment option in carefully selected patients who have failed conservative therapy for 3-6 months 1

Treatment Goals

The primary goal of treatment is to reduce pain, promote healing, and improve function, with the ultimate goal of returning to normal activities. This can be achieved through a combination of rest, physical therapy, and pain management, with surgery considered only in cases where conservative therapy has failed.

Important Considerations

It is essential to note that patellar tendinosis is a chronic degenerative condition, and recovery typically takes 3-6 months of consistent therapy. Proper rehabilitation is crucial for tissue remodeling and healing, and patients should be advised to be patient and consistent with their treatment plan. Additionally, corticosteroid injections should be used with caution, as they may weaken the tendon, and surgery should only be considered in cases where conservative therapy has failed for 3-6 months 1.

From the Research

Definition and Treatment of Patellar Tendinosis

  • Patellar tendinopathy is a common condition characterized by anterior knee activity-related pain, with a high incidence among athletes engaged in jumping sports 2, 3.
  • Various treatment methods are used in the management of patellar tendinopathy, including rest, activity modification, anti-inflammatory medication, injection therapies, taping, eccentric exercises, extra corporeal shock wave therapy, percutaneous electrolysis, and surgery 2, 3, 4.

Nonoperative Treatment Options

  • Conservative management is considered to be the first line of treatment, with physical therapy and eccentric exercises being the mainstay of treatment for patellar tendinopathy 2, 3.
  • Eccentric exercise therapies have been shown to be effective in the short-term, with a significant improvement in symptoms 5, 4.
  • Platelet-rich plasma (PRP) injections have also been shown to be effective, with multiple injections offering more satisfactory results at long-term follow-up 5, 6.
  • Extracorporeal shockwave therapy (ESWT) has also been shown to be effective, although results have varied widely 5, 4.

Surgical Treatment Options

  • Surgical treatment is effective in many refractory cases unresponsive to nonoperative modalities, with both open and arthroscopic debridement of the patellar tendon being used 2, 4.
  • Surgery can be considered for patients who fail to improve after 6 months of conservative treatment 4.

Comparison of Treatment Options

  • A systematic review of 15 studies found that eccentric training with or without core stabilization or stretching improved symptoms, while surgery in patients refractory to nonoperative treatment also improved symptoms 4.
  • Another systematic review of 22 studies found that PRP injections were superior to other traditional approaches such as shock-wave therapy and dry needling for patellar tendinopathy 6.
  • However, the quality of the studies was generally poor, and more high-level evidence is needed to determine the most effective treatment options for patellar tendinopathy 5, 6.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Patellar Tendinopathy.

Sports health, 2015

Research

Rehabilitation of patellar tendinopathy.

Journal of musculoskeletal & neuronal interactions, 2020

Research

Treatment Options for Patellar Tendinopathy: A Systematic Review.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 2017

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.