Disease Information for Femoral head/Avascular/Aseptic necrosis

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Clinical Manifestations
Signs & Symptoms
Groin Pain
Hip Inner Thigh Pain
Anterior thigh pain
Arthralgias Polyarthralgias
Arthritis Children
Child won't walk
Hip Auscutation Sign/Abnormal
Hip Pain
Hip Pain In a Child
Hip/gait signs
Hip/Limited motion sign
Joint Pains
Joint pains Arthralgias in Children
Limp
Limping gait/orthopedic/antalgic
Monoarticular Arthritis in Children
Monoarticular Arthritis/One joint acute
Clinical Presentation & Variations
Presentation/Single Joint Arthritis
Disease Progression
Course/Chronic disorder
Course/Chronic only
Demographics & Risk Factors
Established Disease Population
Patient/Alcoholism/chronic alcoholic
Patient/Corticosteroid treatment
Population Group
Aged Adult
Child
Population/Pediatrics population
Sex & Age Groups
Population/Child
Population/Children/all
Population/Elderly Aged
Population/Seventies Adult
Diagnostic Test Results
Isotope Scan
Isotope/Bone scan abnormality
X-RAY
Xray/Hip abnormal
Xray/Hip/capital epiphysis/osteonecrosis
Xray/Hip/Osteonecrosis/femoral head
Xray/Subchondral bone absorption/crescent sign
Associated Diseases & Rule outs
Rule Outs
Femur fracture/neck
Hip bursitis/trochanteric
Osteomyelitis
Associated Disease & Complications
Aseptic Necrosis Joint Lesion
Avascular necrosis bone/process
Hip arthritis
Hip osteoarthritis/Malum coxae senilis
Hip/Aseptic necrosis femoral head
Polyarthritis in Children
Monoarthritis Acute
Disease Synergy - Causes
Synergy/Corticosteroid treatment
Disease Mechanism & Classification
Class
CLASS/Lower extremity involvement/disorder (ex)
CLASS/Femur involvement/disorder (ex)
CLASS/Hip involvement/disorder (ex)
CLASS/Skeletal (category)
Process
PROCESS/Congenital/developmental (category)
PROCESS/Degenerative/necrosis disorder (category)
PROCESS/Inflammatory/Traumatic/regeneration (ex)
PROCESS/Ischemic process (ex)
PROCESS/Necrosis (ex)
PROCESS/Use/Age/atrophic disorder (category)
Synonyms
Synonym
Aseptic Necrosis of Femoral Head, Aseptic Necrosis of Femur Head, Aseptic Necrosis of Head of Femur, FEMORAL HEAD NECROSIS ASEPTIC, Necrosis Aseptic of Femur Head, Synonym/Avascular necrosis hip/AVN
Treatment
Drug Therapy - Contraindication
RX/Corticosteroid (Cortisone)
Drug Therapy - Indication
SX/Orthopedic procedure/surgery
SX/Total hip replacement
Surgical Procedures or Treatments
SX/Surgery
Definition

Osteonecrosis; Aseptic Necrosis; Avascular Necrosis of Bone

Ischemic Necrosis of Bone; Osteonecrosis is the destruction (necrosis) of bone tissue, often due to an interference with the supply of blood to the bone; It most commonly affects the joints and bones of the hips, knees and/or shoulders; It may occur as a result of bone injuries (trauma-related osteonecrosis) or in conjunction with other diseases or risk factors (nontraumatic osteonecrosis); Risk factors include excessive alcohol intake, some blood coagulation disorders, inflammatory conditions such as rheumatoid arthritis and systemic lupus erythematosus, and reactions to some medications such as steroids------[NORD 2005]------------------------------Aseptic necrosis (also referred to as avascular necrosis or osteonecrosis) is a condition that results from poor blood supply to an area of bone causing bone death; This is a serious condition because the dead areas of bone do not function normally, are weakened, and can collapse; Aseptic necrosis can be caused by trauma and damage to the blood vessels that supply bone its oxygen; Other causes of poor blood circulation to the bone include an embolism of air or fat that blocks the blood flow through the blood vessels, abnormally thick blood (hypercoaguable state), and inflammation of the blood vessel walls (vasculitis);

Conditions that are associated with aseptic necrosis include alcoholism, steroid usage, Cushing"s syndrome, radiation exposure, sickle cell disease, pancreatitis, Gaucher"s disease, and systemic lupus erythematosus;

Treatment is THR complete

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External Links Related to Femoral head/Avascular/Aseptic necrosis
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Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)
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