Patellar Tendonitis
Patellar tendonitis (jumper's knee) is inflammation of the patellar tendon — the tendon connecting the kneecap (patella) to the shinbone. It's a common overuse injury in athletes who jump frequently, such as basketball and volleyball players, but also affects runners and cyclists. Repetitive stress causes micro-tears in the tendon, leading to pain just below the kneecap.
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Symptoms
- Pain directly below the kneecap
- Pain that worsens with jumping, running, or stair climbing
- Tenderness when pressing on the patellar tendon
- Stiffness in the knee after prolonged sitting
- Swelling around the tendon
- Aching pain after sports activity
When to See a Doctor
See a sports medicine specialist if knee pain below the kneecap persists for more than 2-3 weeks or begins affecting your performance. Early intervention prevents the condition from becoming chronic.
Treatment Options
Load management
Reducing training volume and avoiding jumping activities during the acute phase.
Eccentric and heavy slow resistance exercises
Specific loading protocols (e.g., decline squats) shown to stimulate tendon repair. The primary treatment approach.
Physical therapy
Progressive tendon loading program, addressing hip and ankle strength deficits that contribute to patellar tendon stress.
Patellar tendon strap
A brace worn just below the kneecap to reduce pain during activity.
PRP injection
Platelet-rich plasma injection to stimulate healing in chronic cases.
Recovery Timeline
Mild cases: 6-8 weeks. Moderate cases: 3-6 months of progressive loading. Chronic patellar tendinopathy: 6-12 months. Return to jumping sports typically takes 3-6 months.
Frequently Asked Questions
What is the difference between patellar tendonitis and runner's knee?
Patellar tendonitis (jumper's knee) causes pain directly below the kneecap at the tendon attachment. Runner's knee (patellofemoral pain syndrome) causes pain behind or around the kneecap from cartilage irritation. Both involve the front of the knee but at different structures.
Can I continue training with patellar tendonitis?
Some activity is possible with patellar tendonitis, but heavy jumping and running should be reduced. Pain-guided training — keeping activity within tolerable pain levels (3/10 or less) — is generally acceptable. Complete rest is rarely recommended as it can weaken the tendon.
What type of doctor treats patellar tendonitis?
Sports medicine orthopaedic surgeons and physical therapists are the primary specialists. Physical therapy with a progressive loading program is the cornerstone of treatment.
Related Specialty
Sports Med Specialists →Patellar Tendonitis by State
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This information is for educational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider for diagnosis and treatment.