ROLE OF MRI IN PREOPERATIVE ASSESSMENT OF AVASCULAR NECROSIS OF HIP JOINT

Avascular necrosis most frequently occurs in the femoral head. Avascular necrosis of the hip is an important cause of morbidity and can harm people of any age. A total hip replacement is frequently required as a result of secondary osteoarthritis and articular surface collapse that develop with disease progression. Early identication of hip avascular necrosis is essential since all treatments aimed at preserving the femoral head are more effective in the early stages of the illness.MRI is the most accurate imaging technique for detecting avascular necrosis of all imaging tests. For identifying avascular necrosis at high magnetic eld strengths, MRI is far more sensitive than CT scanning, nuclear scintigraphy, or simple lm radiography. Several studies have shown that the detection of avascular necrosis by MRI is very sensitive, specic, and accurate. This study is done to evaluate the role of MRI in preoperative assessment of avascular necrosis of hip joint based on Ficat and Arlet staging (four stages) and area of infarct involving the femoral head (Four groups). Aims and objectives: Ÿ To evaluate the role of MRI in preoperative assessment of avascular necrosis of hip joint.Based on Ficat and Arlet staging (four stages) Area of infarct involving the femoral head (Four groups). Materials and methods: Ÿ A retrospective study was conducted in a tertiary care centre using 1.5T MRI, a sample size of 28 cases referred for magnetic resonance imaging hip joint, and diagnosed as avascular necrosis of hip joint during the period of January 2022 to July 2022 was considered for this study. Conclusion: Ÿ During our study we observed that majority of patients were having Grade III disease in the conducted study. Patient under group A and B were treated with core decompression and Group C and D underwent total hip replacement. Ÿ So preoperative MR imaging with proper categorisation helps for better surgical management and outcome