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Patellar Tendinitis

    The knee is the largest joint in the body. It is built for bearing weight, stability, and mobility. The knee is composed of four bones and three bone-to-bone joints. The most common injury or condition of the knee is tendinitis. There are several groups of tendons that attach near and control the knee. A tendon is a cord-like part of the muscle that attaches the muscle to the bone. Knee tendinitis is the irritation, inflammation, and swelling of tendons around the knee. The most common tendons affected are the patella tendon, hamstring tendons, and the iliotibial band.


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    Patella Tendon

    The patella tendon is the large tendon in the front of the knee that runs from the patella to the tibia. The patella is located within the quadriceps tendon, which is formed by the intersecting of the four quadriceps muscles on the front of the thigh. It is responsible for straightening the knee and plays a vital role in walking, stair climbing, and running and jumping activities. Patella tendinitis is often referred to as “jumper’s knee.”

    Causes

    Common causes of patella tendinitis include:

    • Overuse, common to participating in activities like basketball, running, volleyball, and soccer;
    • An injury, or direct impact to the tendon;
    • Daily activities that involve repeated kneeling and/or squatting;
    • Weakness of the quadriceps muscle;
    • An increase in the frequency or intensity of training;
    • Poor training technique or training on a hard surface.

    Symptoms of Patella Tendinitis

    • Pain and tenderness of the patella tendon on palpation;
    • Swelling over the patella tendon.
    • Difficulty and pain with jumping, running, stairs, squatting, or kneeling activities;
    • Achiness or stiffness in the front of the knee below the patella after exertion or exercise;
    • Pain and weakness with the resistance of the quadriceps muscle.

    Patellar Tendinitis

    Hamstring Tendon

    The hamstring tendons purpose is to attach the hamstrings to the inside and outside of the knee. The medial hamstrings, semitendonosis, and semimembranosis, insert at the inside of the knee. This is also referred to as the pes-enserines. The lateral hamstring attaches to the outside of the knee at the tibia and fibula. The hamstring’s primary role is to bend the knee and straighten the hip, making them an essential component to walking, running, and jumping.

    Hamstring Tendinitis Causes

    Common causes of hamstring tendinitis:

    • Repetitive activities such as running, jumping, or kicking.
    • Sudden and frequent deceleration, acceleration, or stopping;
    • A rapid increase in frequency or intensity of exercise or training.
    • Improper running technique or training on hard surfaces;
    • Weakness in the hamstring muscle causes the tendons to endure more strain;
    • Poor pelvic alignment;
    • Obesity increases the stress on an individual’s hamstring tendons.

    Iliotibial Band Tendon

    The iliotibial band runs from the lateral pelvis to the outside of the knee, attaching to the tibia. The iliotibial band stabilizes the knee and hip during walking, standing, and running. Iliotibial band tendinitis is also known as Iliotibial Band Friction Syndrome. This condition is caused when a bursa below the iliotibial band that helps the band glide over the lateral femoral condyle of the femur becomes irritated. When this bursa is inflamed or swollen the iliotibial band does not glide smoothly and develops into Iliotibial band tendinitis.

    Iliotibial Band Tendinitis Causes

    This is a common overuse injury found in people who suddenly increase their level of activity. It is especially prevalent in runners, cyclists, or rowers who suddenly increase their mileage/distance when training. Common causes of Iliotibial band tendinitis or friction syndrome include:

    • Poor alignment in the legs and feet, such as pronation, flat feet, or bowlegs;
    • One leg is longer than the other;
    • Tightness of the iliotibial band;
    • Excessive downhill running.


    Treating Knee Tendinitis

    Treatment for knee tendinitis will depend on the severity of the condition. Acute knee tendinitis should be treated using the principles of RICE (rest, ice, compression, and elevation).

    • Rest: avoid the activities that produce the pain (jumping, running, stairs, kneeling, squatting, etc);
    • Ice: apply ice to the tendon or area of inflammation. Apply ice right away (not directly to the skin) and at intervals for around 20 minutes at a time;
    • Compression: when using ice, apply light compression;
    • Elevation: elevate the area to help reduce inflammation.

    Mild Cases

    In mild cases many patients found that rest, ice and medication were enough to stop (or at least reduce) the pain. Your return to activity should be gradual to prevent a flare-up of symptoms, and if symptoms continue it is advised to see a pain management specialist for a more specific diagnosis.

    Moderate to Severe Cases

    If the pain and inflammation persist, you should consult with your health care provider. Your pain management specialist should then perform a thorough evaluation to determine what tendon(s) are involved, the severity of the knee tendinitis, and finally the best course of treatment.

    Medicine Intervenes

    Avoiding the activities that produce the pain or stress of the involved tendon is the first line of treatment.

    • RICE: Rest, Ice, Compression Elevation should be used to alleviate the stress on the bursa;
    • NSAIDs (Non-steroidal anti-inflammatory drugs) to minimize pain and swelling;
    • Injection of steroids may be prescribed to minimize inflammation of the tendon;
    • Immobilization or bracing may benefit the tendon and promote healing;
    • In extreme conditions, surgery may be necessary in order to repair the tendon.

    Prognosis

    Normally, patients respond well to conservative treatment of knee tendinitis. PLEASE NOTE: that once the pain and swelling are reduced and the individual’s motion and strength are restored the patient should gradually return to full mobility and function. In general, full return to all activity will take anywhere from two to six weeks depending on the severity of the injury. As a preventive measure individuals should:

    • Warm-Up: warming up prior to physical activity is necessary for preparing muscles and tendons for any work required of them. A five to ten-minute warm-up raises the body temperature and increases the circulation to the muscles and tendons and raises your heart rate. Elevating your body temperature and increasing the circulation will also help allow the muscles and tendons to be pliable and stretch with ease.
    • Stretching: stretching before and after any activities will reduce the probability of developing tendinitis. Stretching will improve and maintain the elasticity of the muscles and tendons. Hold each stretch for 20 seconds and do NOT bounce while stretching. Remember, as tendons age, they lose their flexibility. This is simply part of the natural aging process.
    • Strength: participating in a strength program will help muscles maintain enough strength to absorb the stress placed on them. Just running or participating in a sport will not prepare the muscles for the impact forces involved in many strenuous activities. As people age, they naturally become weaker, and a great way to combat this weakness is through a strength program.
    • Training: avoid sudden increases in your training regimen. Training progress should be gradually increased to avoid injury, especially if diagnosed with tendinitis previously.
    • Foot Wear: When weight-bearing or taking part in impact activities, proper footwear is imperative to minimize impacts and distribute forces properly.


    Great process, great result!

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    Page Updated on May 20, 2022 by Dr. Freeman (Pain Management Specialist) of Redefine Healthcare Dr. Eric D. Freeman

    Dr. Eric D. Freeman is a top-rated, best-in-class pain management doctor. He is a nationally recognized pain relief specialist and is among the top pain care doctors in New Jersey and the country. He is an award-winning expert and contributor to prominent media outlets.

    Dr. Eric D. Freeman has been recognized for his thoughtful, thorough, modern approach to treating chronic pain. He has been named a “top pain management doctor in New Jersey” and one of “America’s Top Physicians” for advanced sports injury treatments.

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