Share this page

Health Library

Patellar Tendonopathy(Jumper's Knee; Patellar Tendonitis; Patellar Tendonosis; Quadriceps Tendonitis; Infrapatellar Tendonopathy; Patellar Apicitis)

The patellar tendon connects the kneecap to the lower leg bone. Tendonopathy is an injury to the tendon. It can cause pain, swelling, and limited movement. The injury can include:

  • Tendonitis—inflammation of the tendon
  • Tendonosis—tiny tears in the tendon tissue with no significant inflammation

Treatment depends on the severity of the injury.

Patellar Tendonitis

Nucleus factsheet image

Copyright © Nucleus Medical Media, Inc.


Tendonopathy is generally caused by overuse of a muscle-tendon unit. Over time, the strain on the tendon causes structural changes within the tendon.

Patellar tendonopathy occurs from overuse of the patellar tendon. Overuse may be caused by any activity that requires:

  • Intense running
  • Jumping
  • Frequent stops and starts
  • Frequent impact to the knee
  • Falls
  • Tendon weakness from certain diseases
Risk Factors

Physically active teenagers and young adults are at higher risk. Factors that increase your chance of developing patellar tendonopathy include:

  • An increase in the frequency of training
  • A sudden increase in the intensity of training
  • Changing from one sport to another
  • Training on a hard surface
  • Repeated improper movements while training
  • Muscle weakness or imbalance
  • Involvement in basketball, soccer, volleyball, or running

Symptoms may include:

  • Pain and tenderness in the patellar tendon below the kneecap
  • Pain or tightness in the knee when bending, squatting, or straightening the leg
  • Discomfort in the knee when jumping, squating, or walking up stairs

You will be asked about your symptoms and medical history. A physical exam will be done.

Images may be taken. This can be done with:


Talk with your doctor about the best treatment plan for you. Treatment will depend on the severity of the injury. Options include:

Supportive Care

Your knee will need time to heal. RICE is often the main part of treatment:

  • Rest—Activities will need to be restricted at first to reduce shock or vibrations to the knee. Normal activities will be gradually introduced as the injury heals.
  • Ice—Ice therapy may help relieve swelling.
  • Compression—Compression bandages can provide gentle pressure to help move fluids out of the area.
  • Elevation—Keeping the affected area elevated can help fluids drain out or prevent fluids from building up.

A strap called a counterforce brace may be advised to help support the tendon and reduce pain.

Over-the-counter or prescription medications may be advised to reduce pain. Cortisone injections may also be used if other treatments to do not reduce inflammation.

Physical Therapy

A physical therapist will assess the knee. An exercise program will be created to help recovery and to strengthen the muscle.


You may need surgery if you have advanced damage to the tendon. Your doctor may also recommend surgery if you have not responded to other treatment methods over a period of several months.


To reduce your chances of getting patellar tendonopathy, take these steps:

  • Avoid activities and sports that repeatedly stress the kneecaps, especially those that involve jumping.
  • Perform quadriceps muscle stretching and strengthening exercises.
  • Increase the frequency and intensity of your exercises gradually.
  • Learn proper techniques for sports.


The American Orthopaedic Society for Sports Medicine

OrthoInfo—American Academy of Orthopaedic Surgeons Ortho Info


Canadian Orthopaedic Association

Canadian Orthopaedic Foundation


Aronen JG, Garrick JG. Sports-induced inflammation in the lower extremities. Hosp Pract. 1999;34:51.

Bursitis and tendinitis. National Institute of Arthritis and Musculoskeletal and Skin Diseases website. Available at: Updated June 2013. Accessed March 9, 2015.

O'Connor FG, Howard TM, Fieseler CM, Nirschl RP. Managing overuse injuries: a systematic approach. Phys Sportsmed. 1997 May;25(5).

Patellar tendinopathy. EBSCO DynaMed website. Available at: Updated July 18, 2014. Accessed March 9, 2015.

Patellar tendon knee tear. American Academy of Orthopaedic Surgeons Ortho Info website. Available at: Updated August 2009. Accessed March 9, 2015.

Post WR. Patellofemoral pain: let the physical exam define treatment. Phys Sportsmed.1998;26(1).

Steunebrink M, Zwerver J, Brandsema R, Groenenboom P, Akker-Scheek Iv, Weir A. Topical glyceryl trinitrate treatment of chronic patellar tendinopathy: a randomised, double-blind, placebo-controlled clinical trial. Br J Sports Med. 2013 Jan;47(1):34-9.

10/26/2010 DynaMed's Systematic Literature Surveillance Massey T, Derry S, Moore R, McQuay H. Topical NSAIDs for acute pain in adults. Cochrane Database Syst Rev. 2010;(6):CD007402.

Last reviewed March 2015 by Teresa Briedwell, PT, DPT, OCS

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.

Baptist Flame

Health Library


Find A Doctor



Baptist Medical Clinic

Patients & Visitors


Contact Us

Physician Tools

Careers at Baptist

Employee Links

Online Services

At Baptist Health Systems

At Baptist Medical Center

close ×