Background
Trochanteric bursitis is characterized by painful inflammation of the bursa that is located just superficial to the greater trochanter of the femur. Patients typically complain of lateral hip pain, although the hip joint itself is not involved, because pain may radiate down the lateral aspect of the thigh.
Pathophysiology
Inflammation of the affected bursa between the femoral trochanteric process and the gluteus medius/iliotibial tract may be due to acute or repetitive (cumulative) trauma. Acute trauma includes contusions from falls, contact sports, and other sources of impact. Repetitive trauma includes bursal irritation due to friction by the iliotibial band (ITB), which is an extension of the tensor fascia lata (TFL) muscle. Such repetitive, cumulative irritation often occurs in runners, but it can also be seen in less-active individuals. Other predisposing factors include leg-length discrepancy, hip abductor weakness, and lateral hip surgery.
The term greater trochanteric pain syndrome (GTPS) is now being commonly substituted for trochanteric bursitis, because the inflammatory etiology of the pain is being refuted by current research using ultrasound, magnetic resonance imaging (MRI), and histologic evidence.[1, 2]
For excellent patient education resources, visit eMedicine's Arthritis Center. Also, see eMedicine's patient education article Bursitis.
This picture demonstrates a method of stretching the iliotibial band (ITB) in the standing position. One foot is crossed over the other; the patient leans away from the side being stretched such that the side to be stretched is leaning in toward the wall. The patient should feel the stretching at the lateral aspect of the hip that is closest to the wall. Stretching should be done in a controlled and sustained manner, never in a ballistic manner with sudden, jerking movements.
This picture demonstrates a method of stretching the iliotibial band (ITB) with the patient in the supine position. The foot ipsilateral to the stretching is crossed over the contralateral knee. Next, the thigh ipsilateral to the area of stretching is pulled across the midline (adduction). The patient should feel the stretching at the lateral aspect of the hip, in the area shown by the dark line. Stretching should be performed in a controlled, sustained manner, never in a ballistic manner with sudden, jerking movements. Epidemiology
Frequency
United States
Trochanteric bursitis (greater trochanteric pain syndrome, GTPS) is relatively common among physically active and sedentary patients and can occur as a complication of arthroscopic surgery of the hip. The overall complication rate has been estimated to be 1.4%.[3]
The prevalence of unilateral trochanteric bursitis (greater trochanteric pain syndrome, GTPS) is 15.0% in women and 8.5% in men and that of bilateral GTPS is 6.6% in women and 1.9% in men.[4]
Race
No racial predilection has been reported.
Sex
A study published in a British journal reported that there appeared to be a female preponderance (80%) of trochanteric bursitis (greater trochanteric pain syndrome, GTPS) relative to males.[5]
Age
Trochanteric bursitis (greater trochanteric pain syndrome, GTPS) can occur in adults of any age.
International
Lievense et al reported the annual incidence of trochanteric pain in primary care settings was 1.8 patients per 1000.[5]
Sport-Specific Biomechanics
Athletic activities that are potentially associated with trochanteric bursitis (greater trochanteric pain syndrome, GTPS) include those involving running or sports that are associated with the possibility of falls and/or physical contact. Other contributing factors may include running on banked surfaces, which essentially produces a functional leg-length discrepancy because the contact surface of the downhill foot is lower.
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