Idiopathic Transient Osteoporosis of the Hip in a Non-Pregnant Woman: A Case Report

Abstract

Transient osteoporosis of the hip (TOH) is a rare disease affecting women in the third trimester of pregnancy as well as middle-aged men. TOH is associated with hip pain and temporary osteopenia apparent on radiology without joint space narrowing or destruction of the hip. Pregnancy is the only recognized risk factor for women. It typically runs a benign course with eventual resolution of symptoms. Radiographs may be unrevealing early in its course. Therefore, transient osteoporosis may be confused with many other conditions such as avascular necrosis. In early stages, it is important to distinguish between these two conditions to order to decide on an appropriate treatment plan. In this report, we present a 35-year-old woman who had TOH, without any risk factor including pregnancy, and showed sufficient improvement with conservative treatment.