ANSERINE BURSITIS PDF

A bursa is a thin, slippery, sac-like film that contains a small amount of fluid. A bursa is found between bones and soft tissues in and around joints. It cushions and protects joint structures and stops them from rubbing against each other. If a bursa becomes inflamed and irritated, it's known as bursitis.

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Bursitis of the knee occurs when constant friction on the bursa causes inflammation. The bursa is a small sac that cushions the bone from tendons that rub over the bone.

Bursae can also protect other tendons as tissues glide over one another. Bursae can become inflamed and irritated causing pain and tenderness. The pes anserine bursa is the main area affected by this condition.

The pes anserine bursa is a small lubricating sac between the tibia shinbone and the hamstring muscle. The hamstring muscle is located along the back of the thigh.

There are three tendons of the hamstring: the semitendinosus , semimembranosus , and the biceps femoris. The semitendinosus wraps around from the back of the leg to the front.

It inserts into the medial surface of the tibia and deep connective tissue of the lower leg. Medial refers to the inside of the knee or the side closest to the other knee. Just above the insertion of the semitendinosus tendon is the gracilis tendon. The gracilis muscle adducts or moves the leg toward the body. The semitendinosus tendon is also just behind the attachment of the sartorius muscle.

The sartorius muscle bends and externally rotates the hip. Together, these three tendons splay out on the tibia and look like a goosefoot. This area is called the pes anserine or pes anserinus. The pes anserine bursa provides a buffer or lubricant for motion that occurs between these three tendons and the medial collateral ligament MCL.

The MCL is underneath the semitendinosus tendon. Overuse of the hamstrings, especially in athletes with tight hamstrings is a common cause of goosefoot. Runners are affected most often.

Improper training, sudden increases in distance run, and running up hills can contribute to this condition. It can also be caused by trauma such as a direct blow to this part of the knee. A contusion to this area results in an increased release of synovial fluid in the lining of the bursa. The bursa then becomes inflamed and tender or painful.

Anyone with osteoarthritis of the knee is also at increased risk for this condition. And alignment of the lower extremity can be a risk factor for some individuals. A turned out position of the knee or tibia, genu valgum knock knees , or a flatfoot position can lead to pes anserine bursitis.

The patient often points to the pes anserine as the area of pain or tenderness. The pes anserine is located about two to three inches below the joint on the inside of the knee. This is referred to as the anterior knee or proximedia tibia. Proximedia is short for proximal and medial. This term refers to the front inside edge of the tibia. Some patients also have pain in the center of the tibia. This occurs when other structures are also damaged such as the meniscus cartilage. The pain is made worse by exercise, climbing stairs, or activities that cause resistance to any of these tendons.

A history and clinical exam will help the physician differentiate pes anserine bursitis from other causes of anterior knee pain, such as patellofemoral syndrome or arthritis. An X-ray is needed to rule out a stress fracture or arthritis. An MRI may be needed to look for damage to other areas of the medial compartment of the knee.

Fluid from the bursa may be removed and tested if infection is suspected. The examiner will also assess hamstring tightness. This is done in the supine position lying on your back.

Your hip is flexed bent to 90 degrees. The knee is straightened as far as possible. The amount of knee flexion is an indication of how tight the hamstrings are. If you can straighten your knee all the way in this position, then you do not have tight hamstrings. The goal of treatment for overuse injuries such as pes anserine bursitis is to reduce the strain on the injured tissues. Stopping the activity that brings on or aggravates the symptoms is the first step toward pain reduction.

Bedrest is not required but it may be necessary to modify some of your activities. This will give time for the bursa to quiet down and for the pain to subside. Patients are advised to avoid stairs, climbing, or other irritating activities.

This type of approach is called relative rest. Ice and antiinflammatory medications can be used in the early, inflammatory phase. The ice is applied three or four times each day for 20 minutes at a time. Ice cubes wrapped in a thin layer of toweling or a bag of frozen vegetables applied to the area works well. Athletes are often instructed by their physical therapist or athletic trainer to perform an ice massage.

A cup of water is frozen in a Styrofoam container. The top edge of the container is torn away leaving a one-inch surface of ice that can be rubbed around the area. The Styrofoam protects the hand of the person holding the cup while applying the ice massage. The pes anserine area is massaged with the ice for 10 minutes or until the skin is numb.

Caution is advised to avoid frostbite. Your physical therapist can also use a process called iontophoresis. Using an electric charge, an antiinflammatory drug can be pushed through the skin to the inflamed area.

This method is called transdermal drug delivery. Iontophoresis puts a higher concentration of the drug directly in the area compared to taking medications by mouth. This process does not deliver as much drug as a local injection. Improving flexibility is a key part of the prevention and treatment of this condition. Hamstring stretching is performed at least twice a day for a minimum of 30 seconds each time.

Holding the stretch for a full minute has been proven even more effective. Some patients must perform this stretch more often, even once an hour if necessary. Do not bounce during the stretch. Hold the position at a point of feeling the stretch but not so far that it is painful or uncomfortable.

Deep breathing can help ease the discomfort. Try to stretch a little more as you breathe out. Quadriceps strengthening is also important. This is especially true if there are other areas of the knee affected. The quadriceps muscle along the front of the thigh extends the knee and helps balance the pull of the hamstrings.

A special type of exercise program called closed kinetic chain CKC is performed for six to eight weeks to assist with quadriceps strengthening. The CKC may include single-knee dips, squats and leg presses. Resisted leg-pulls using elastic tubing are also included. The exercise program is prescribed by a physical therapist and gradually progressed during the eight-week session. If these measures are not enough, your physician may inject the bursa with a solution of lidocaine an anesthetic or numbing agent combined with a steroid an antiinflammatory.

The steroid injection can be diagnostic as well. If the symptoms are improved, it is assumed the problem was coming from the pes anserine bursa. Surgery is rarely needed for pes anserine bursitis. The bursa may be removed if chronic infection cannot be cleared up with antibiotics.

Pes anserine bursitis is considered a self-limiting condition. This means it usually responds well to treatment and will resolve without further intervention. Athletes may have to continue a program of hamstring stretching and CKC quadriceps strengthening on a regular basis. Athletes may return to sports or play when the symptoms are gone and are no longer aggravated by certain activities.

Protective gear for the knee may be needed for those individuals who participate in contact sports. During the rehab process, activity level and duration are gradually increased. If the symptoms don't come back, the athlete can continue to progress to full participation in all activities. If the bursa is removed, you follow the same steps of rehab and recovery outlined under Nonsurgical Treatment. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments.

The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic. This guide will help you understand what part of the knee is affected what causes this condition how doctors diagnose this condition what treatment options are available Anatomy What parts of the body are involved?

Causes What causes this problem?

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Understanding Pes Anserine Bursitis

Bursae are small, jelly-like sacs that are located throughout the body, including around the shoulder, elbow, hip, knee, and heel. They contain a small amount of fluid, and are positioned between bones and soft tissues, acting as cushions to help reduce friction. Pes anserine bursitis is an inflammation of the bursa located between the shinbone tibia and three tendons of the hamstring muscle at the inside of the knee. It occurs when the bursa becomes irritated and produces too much fluid, which causes it to swell and put pressure on the adjacent parts of the knee. Pain and tenderness on the inside of your knee, approximately 2 to 3 inches below the joint, are common symptoms of pes anserine bursitis of the knee. Pain from pes anserine bursitis is located on the inside of the knee, just below the joint. Bursitis usually develops as the result of overuse or constant friction and stress on the bursa.

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Physical Therapy Guide to Pes Anserine Bursitis

NCBI Bookshelf. Michael Mohseni ; Charles Graham. Authors Michael Mohseni 1 ; Charles Graham 2. Bursitis is the general term used to describe inflammation of any bursae. The bursae are the cavitary structures lined with synovial tissue that cushion and assist during the motion of joints and muscles.

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Pes Anserine Bursitis of the Knee

Bursitis of the knee occurs when constant friction on the bursa causes inflammation. The bursa is a small sac that cushions the bone from tendons that rub over the bone. Bursae can also protect other tendons as tissues glide over one another. Bursae can become inflamed and irritated causing pain and tenderness. The pes anserine bursa is the main area affected by this condition.

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