Cellular bone death due to vascular insufficiency
Can be either traumatic or nontraumatic
Also known as:
Avascular necrosis (AVN)
Ischemic necrosis
Idiopathic osteonecrosis
Lunatomalacia/Kienböck dis...
Hip/femoral head: dull, aching groin/hip pain that is progressive a...
Early diagnosis is important for optimal outcome.
Treatment depends on the age, location, stage of the disease, and overall health of the patient.
The goal of therapy is to preserve the native...
Physicians prescribing bisphosphonates should alert patients to potential oral complications, and advise patients to...
National Institute of Arthritis and Musculoskeletal and Skin Diseases. Osteonecrosis. www.niams.nih.gov/health_info/osteonecrosis/. Accessed February 11, ...
M87.9 Osteonecrosis, unspecified
M87.20 Osteonecrosis due to previous trauma, unspecified bone
M87.00 Idiopathic aseptic necrosis of unspecified bone
M87.059 Idiopathic aseptic necrosis of uns...
Trauma, alcohol abuse, and prolonged glucocorticoid use are the most common risk factors for developing osteonecrosis.
Suspect osteonecrosis in high-risk patients presenting with dull b...
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<bold>FIGURE 26-16. Osteonecrosis of the head of the femur.</bold> A coronal section shows a circumscribed area of subchondral infarction with partial detachment of the overlying articular cartilage and subarticular bone.
<bold>FIGURE 26-16. Osteonecrosis of the head of the femur.</bold> A coronal section shows a circumscribed area of subchondral...
<bold>FIG. 6.44.</bold> Magnetic resonance imaging appearance of avascular necrosis. A: Transverse T<sub>1</sub>-weighted image of a patient (supine) with hip pain on long-term steroid therapy for lupus erythematosus shows nonspecific marrow edema (<italic>arrow</bold>) in the left femoral head (<italic>f</bold>). The location and clinical context of this finding are suggestive of avascular necrosis, but the imaging appearance is otherwise nonspecific. <italic>a</bold>, acetabulum; <italic>b</bold>, bladder. Sagittal T<sub>1</s...
<bold>FIG. 6.44.</bold> Magnetic resonance imaging appearance of avascular necrosis. A: Transverse T<sub>1</sub>-we...
<bold>FIG. 107.2.</bold> An anteroposterior view of the hips in a 23-year-olf female patient with osteonecrosis of both femoral heads <italic>(arrows)</bold>, associated with systemic lupus erythematosus.
<bold>FIG. 107.2.</bold> An anteroposterior view of the hips in a 23-year-olf female patient with osteonecrosis of both femoral...
<bold>FIG. 107.5.</bold> An anteroposterior view of the knee in a 23-year-old female patient with osteonecrosis of the femoral condyle <italic>(arrow)</bold> associated with systemic lupus erythematosus.
<bold>FIG. 107.5.</bold> An anteroposterior view of the knee in a 23-year-old female patient with osteonecrosis of the femoral ...