HomeAIIMSAvascular Necrosis Avascular Necrosis By EduMed AIIMS, DNB, NEET PG 0 Comments Avascular Necrosis – Also called Osteonecrosis, aseptic necrosis, or ischemic bone necrosis. – It is the death of bone tissue due to a lack of blood supply. – The blood flow to a section of bone can be interrupted if the bone is fractured or the joint becomes dislocated. – Most common in people between the ages of 30 and 60. – Head of the femur is a common site. Causes of Avascular Necrosis of femoral head 1.Idiopathic – Most Common 2.Alcoholism 3.Steroid therapy 4.Sickle cell disease 5.Patient on renal dialysis 6.Patient on anticancer drugs 7.Postpartum necrosis 8.Goucher’s disease 9.Caisson’s disease Clinical Features – The disease is bilateral in 75% of cases. – The patient complains of pain in the groin or in front of the thigh. – Pain is present at all times but increases on exertion. Diagnosis – X-rays may be normal in the early stage. – If suspicion is strong, a bone scan may be done. – In the later stage, an osteolytic lesion can be seen in superolateral part of the head. – There may be diffuse osteosclerosis of the head, but the shape of the head may be maintained. – In the advanced stage, the head collapses. – Eventually, changes of secondary osteoarthritis become apparent. – MRI scan is the best modality for early diagnosis of Avascular Necrosis. Treatment – Core decompression and fibular grafting are done if the head of the femur has not got deformed. – In later stages, once the head gets deformed, muscle pedicle bone grafting using Tensor fascia lata has been shown to produce good results. – In some cases with involvement of a part of the head, an Intertrochanteric Osteotomy has been described. – In cases with changes of advanced osteoarthritis, Total Hip Replacement becomes necessary. Click Here to Download Handwritten Notes for NEET PG/ DNB/ AIIMS PG and Other Medical PG Entrance Preparation Thank you Reader Your like motivate us to post new and unique articles. Please Like and Share this post. LIKE Our Facebook Page to get latest updates. Contact us @ edumedwebstore[at]gmail.com if you have any queries. Related Posts [PDF] Hand written notes for NEET PG/ DNB [PDF] Classroom Notes for NEET PG/ DNB Shoulder Dislocation About Author EduMed Add a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment:*Name:* Email Address:* Website: Save my name, email, and website in this browser for the next time I comment.