Study of Staging of Magnetic Resonance Imaging in Avascular Necrosis of Femoral Head

Abstract

Avascular Necrosis refers to the bone death in epiphyseal or subarticular location secondary to interruption of blood supply. MRI has become the most sensitive, specic and widely used diagnostic imaging modality for evaluation of AVN of femoral head. The aim was to study the stages of presentation of Avascular Necrosis of femoral head on Magnetic Resonance Imaging in tertiary care centre .It is a Hospital record based descriptive study carried out at the Department of Radio-diagnosis, those patients which showed signs for avascular necrosis of femoral head over a period of three years were included in the study. Staging of Avascular Necrosis of femoral head was done as per Ficat and Arlet classication and distribution was done on the basis of Age, Gender and Laterality. Out of 129 patients with suspected AVN, 68 patients showed features of AVN of femoral head on MRI .It was found that males were commonly affected with mean age group between 31-40 years. Most of the patients had bilateral involvement. It was found that most of the patients presented during stage III of the disease. It was also observed that Coronal sequence of T1w image was useful in diagnosing most cases of AVN and hence can be used as a rapid protocol in diagnosing AVN.