About Patellar Tendinitis (Jumper's Knee)

Overview

Patellar tendinitis, also known as jumper's knee, is a common injury or inflammation of the tendon that connects the kneecap (patella) to the shinbone (tibia). It is often caused by overloading or overusing the patellar tendon, particularly in sports that involve strenuous jumping movements. The characteristic symptom of patellar tendinitis is pain and tenderness localized on the inferior tip of the kneecap. Other symptoms may include pain with prolonged sitting, squatting, or stair climbing, as well as pain from prolonged knee flexion and tenderness behind the kneecap. Anyone can develop patellar tendinitis, but it is more frequently seen in athletes, especially those who play volleyball and basketball. Treatment options for patellar tendinitis include resting, cryotherapy, activity modifications, sports training, physical therapy, and in some cases, surgical intervention. It is important to consult with a healthcare professional for an accurate diagnosis and appropriate treatment plan.

Causes and Risk Factors

The causes of patellar tendinitis involve repetitive stress on the knee, leading to tiny tears in the patellar (kneecap) tendon. Over time, these tears become inflamed and weaken the tendon. The abnormal movement of the kneecap caused by too much force coming from the thigh muscles (quadriceps) can also lead to extra pressure on the patellar tendon.

Risk factors for patellar tendinitis include:

Tight leg muscles
Uneven leg muscle strength
Misaligned feet, ankles, and legs
Chronic diseases that weaken the tendon
Overuse in sports or exercise
Intense sports training, especially with frequent jumping
Playing on hard surfaces

It's important to note that individual risk factors may vary, and it's always recommended to consult with a healthcare professional for personalized advice.

Symptoms

The most common early symptoms of patellar tendinitis include:

Pain and sensitivity focused on the lower part of the patella (kneecap)
Pain with sitting, squatting, or stair climbing for a long time
Pain from keeping the knee bent for a long time
Sensitivity or pain behind the kneecap

As patellar tendinitis progresses or reaches higher severity, other common symptoms may occur, such as:

A tearing or popping sensation in the knee
Bruising around the front of the knee where the tendon is located
Cramping in the affected area
Difficulty walking or bearing weight on the affected leg
The kneecap moving up into the thigh

It's important to note that these symptoms can vary from person to person and may depend on the individual's activity level and severity of the condition. If you experience any of these symptoms, it's advisable to consult with a healthcare professional for an accurate diagnosis and appropriate treatment plan.

Diagnosis

To diagnose patellar tendinitis the following examinations, tests, and procedures are commonly performed:

Physical exam: A doctor or physical therapist will conduct a physical exam, which may involve applying gentle pressure on the knee and testing its range of motion.
Symptom assessment: The healthcare provider will ask about your symptoms, including the location and duration of pain.
Ultrasound: Ultrasound is commonly used to diagnose Patellar Tendinitis. It helps identify the condition and assess any serious tendon damage.

Additional examinations, tests, and procedures to determine the stage or severity of Patellar Tendinitis include:

Victorian Institute of Sports Assessment for PT (VISA-P) Questionnaire: This questionnaire assesses how bad the symptoms are and how much everyday activities are affected by Patellar Tendinitis.
Visual analog scale (VAS): The VAS is used to measure pain intensity on a scale from 0 to 10.
Magnetic resonance imaging (MRI): In more severe cases, an MRI may be ordered to obtain a detailed picture of the injury and assess the extent of tendon damage.

It's important to consult with a healthcare professional for an accurate diagnosis and appropriate treatment plan.

Treatment Options

The goals of treatment for patellar tendinitis are to reduce pain, promote healing, and restore function. Here are the different types of treatments and how they work to achieve these goals:

Medication: Nonsteroidal anti-inflammatory drugs (NSAIDs) may be recommended to reduce pain and inflammation. They work by blocking certain chemicals in the body that cause pain and swelling. However, it's important to note that medication dosing may be affected by many factors, so it's best to consult with your healthcare professional about dosing for your individual situation.
Therapies: Physical therapy is often recommended to strengthen the muscles around the knee, improve flexibility, and correct any biomechanical issues. This can help alleviate stress on the patellar tendon and promote healing.
Therapeutic procedures: In some serious cases, surgical procedures like knee arthroscopy may be necessary. This involves inserting a camera into the joint to assess any damage or misalignment and potentially repair the tendon surgically.
Health behavior changes: Making certain lifestyle modifications can also aid in the treatment of patellar tendinitis. This may include avoiding activities that aggravate the condition, modifying activity levels, using proper footwear, and implementing appropriate warm-up and cool-down routines.

It's important to remember that treatment plans may vary depending on the severity of the condition and individual circumstances. Consulting with a healthcare professional is crucial for an accurate diagnosis and personalized treatment plan.

Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Side effects can occur. Check with your health care professional or read the information provided with your medication for side effect information.