Relação do índice pélvico-trocantérico com a Síndrome Dolorosa do Grande Trocanter

Abstract

Greater trochanteric pain syndrome (GTPS) includes trochanteric bursitis, external snapping hip and gluteus medius and minimus tendinopathy. It affects particularly women, most commonly between the fourth and sixth decades of life. The higher prevalence among women may be associated with the size and shape of the pelvis. To correlate the ratio of the distance between the great trochanters and the distance between the iliac crests (pelvic-trochanteric index) with the occurrence of the greater trochanteric pain syndrome and to identify if the femoral neck shaft angle is smaller on the symptomatic side when compared to the asymptomatic side in patients with the unilateral greater trochanteric pain syndrome. A study was carried out to compare patients with the diagnosis of greater trochanteric pain syndrome (group of cases) with asymptomatic participants (reference group). Measurements were made on the pelvic radiographs searching for the distance between iliac crests, the distance between greater trochanters, the pelvic-trochanteric index and the femoral neck shaft angle. Data from 182 patients (cases) and 150 participants (reference) were analyzed. Linear regression analysis determined the association of measures according to groups of cases and reference considering the age group. Age, being the case and being of the reference group did not affect the mean distance between the great trochanters (34.3 cm) significantly. Pelvic-trochanteric index was higher in patients with greater trochanteric pain syndrome when compared to the asymptomatic women. When the greater trochanteric pain syndrome affected the left lower limb, it was associated with a lower femoral neck shaft angle, compared to the right asymptomatic side.