Avascular necrosis (AVN) of the hip, also called osteonecrosis of the femoral head, is the most common site for osteonecrosis, presumably due to a combination of precarious blood supply and high loading when standing.
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AVN of the hip most commonly presents as pain in the region of the affected hip, thigh, groin, and buttock. Some patients remain asymptomatic until the late stages. It typically affects the superior articular surface (between 10-2 o'clock) and begins in the most anterior part of the hip. #AvascularNecrosis of the hip joint can be thought of as traumatic (secondary to the neck of femur fractures) or non-traumatic. Traumatic osteonecrosis is usually unilateral while most non-traumatic cases are bilateral (70-80%).
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Risk factors for hip #AVN include: hip trauma, chronic corticosteroid therapy, alcoholism, sickle cell disease, smoking, systemic lupus erythematosus (SLE), hyperlipidaemias, HIV, Gaucher disease, chronic renal failure, diabetes mellitus, pregnancy-related, and pancreatitis. Other than describing the general appearance of the affected region, the following are necessary to include in the report as they have a bearing on prognosis and treatment for hip AVN: position, estimating percentage volume of the head involved (axial) and percentage weight-bearing surface involved (coronal), coexisting #osteoarthritis or secondary degenerative change, joint effusion, presence of a potentially unstable osteochondral fragment: rim sign or subchondral fractures.

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About Dr. Cory Calendine, MD #orthopedicsurgeon #jointreplacement
In the operating room, I get to perform more than 600 hip & knee replacement surgeries each year. From LIVE surgical demos to viral video highlights, together let's explore - react - discuss all things related to bone and joint health

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