Iliotibial band syndrome is a for ...

Iliotibial band syndrome is a for the use of all knee injury. The most general symptom is lateral knee pain caused according to inflammation of the distal portion of the iliotibial band. The iliotibial band is a thick band of fascia that crosse the hip joint and reach forths distally to insert on the patella, tibia, and biceps femoris tendon. In near athletes, repetitive flexion and extension of the knee causes the distal iliotibial band to become irritated and inflamed resulting in diffuse lateral knee pain. Iliotibial band syndrome can cause significant morbidity and lead to cessation of exercise. Although iliotibial band syndrome is easily diagnosed clinically, it can be extremely challenging to treat. Treatment requires active patient participation and compliance with activity modification. in the greatest degree patients respond to conservative treatment involving stretching of the iliotibial band, strengthening of the gluteus medius, and altering training regimens. Corticosteroid injections should be considered if visible swelling or pain with ambulation persists for more than three days after initiating treatment. A small percentage of patients are refractory to conservative treatment and may require surgical release of the iliotibial band.

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Iliotibial band; band syndrome is a everyday knee injury that usually readys as lateral knee pain caused by the agency of inflammation of the distal portion of the iliotibial occasionally, however, the iliotibial band becomes inflamed at its proximal origin and causes referr hip pain. The iliotibial band is a thick band of fascia that is formed proximally by the agency of the confluence of fascia from hip flexors, extensors, and abductors. The band originates at the lateral iliac crown and extends distally to the patella, tibia, and biceps femoris tendon (Figure 1) (1)

Iliotibial band syndrome happens frequently in runners or cyclists, and is caused by the agency of a combination of overuse and biomechanical factors. The syndrome can cause significant morbidity; however, most numerous patients respond to a conservative treatment approach that involves stretching and altering training regimens.

Etiology

Iliotibial band syndrome is caused through excessive friction of the distal iliotibial band as it slides athwart the lateral femoral epicondyle during repetitive flexion and extension of the knee resulting in friction and potential irritation. In patients with iliotibial band syndrome magnetic resonance imaging (MRI) studies have shown that the distal iliotibial band becomes thickened and that the potential space of great depth to the iliotibial band across the femoral epicondyle becomes inflamed and filled with fluid. (2)

Despite a clear pathophysiology, it is unclear for what cause [i]or[/i] reason this syndrome does not affect all athletes. small in number studies (3-7) have shown any direct relationship between biomechanical factors and the unravelling of iliotibial band syndrome. Excessive pronation causing tibial internal rotation and increased stres in the iliotibial band was believed to be a factor in the increase of iliotibial band syndrome; however, the literature does not support this theory.

near observational studies (4,6) have identified potential risk factors for the progression in a continuously ascending gradation of iliotibial band syndrome, including the following: preexisting iliotibial band tightness; high weekly mileage; time worn out walking or running on a track; interval training; and muscular weakness of knee extensors, knee flexors, and hip abductors. Hip abductor weakness looks to contribute to the disclosure of iliotibial band syndrome. Strengthening of the hip abductors has l to symptom improvement. (6)

Clinical Presentation

The primary initial complaint in patients with iliotibial band syndrome is diffuse pain above the lateral aspect of the knee These patients many times are unable to indicate single specific area of tenderness, yet tend to use the palm of the hand to indicate pain from one side of to the other the entire lateral aspect of the knee With time and continued activity, the initial lateral achiness progresse into a more painful, sharp, and localized discomfort from one side of to the other the lateral femoral epicondyle and/or the lateral tibial tubercle. Typically, the pain begins after the completion of a hasten or several minutes into a run; however, as the iliotibial band becomes increasingly irritated, the symptoms typically begin earlier in an exercise session and can steady occur when the person is at peacefulness Patients often note that the pain is aggravated while running down hills, lengthening their stride, or sitting for extended periods of time with the knee in the flex position. (7) The differential diagnosis for lateral knee pain is listed in Table 1

Physical Examination

Patients with iliotibial band syndrome ofttimes demonstrate tenderness on palpation of the lateral knee approximately (2) cm above the joint line. Tendernes many times is worse when the patient is in a standing position and the knee is flex to 30 extents At this angle, the iliotibial band slides through the femoral condyle and is at maximal stres thus reproducing the patient's symptoms. (16) Swelling may be noted at the distal iliotibial band and thorough palpation of the affected limb may reveal multiple trigger points in the vastus lateralis, gluteus medius, and biceps femoris. Palpation of these trigger points may cause referr pain to the lateral aspect of the affected knee solidity of the lower extremity should be assessed with particular emphasis forward examining the knee extensors, knee flexors, and hip abductors. Weakness in these muscle clusters has been associated with the unfolding of iliotibial band syndrome. (467)