What is the prevalence of femoral head avascular necrosis (AVN) in the US?

Updated: Oct 22, 2018
  • Author: John D Kelly, IV, MD; Chief Editor: Craig C Young, MD  more...
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AVN of the femoral head is a debilitating disease that usually leads to osteoarthritis of the hip joint in relatively young adults (mean age at presentation: 38 y). The disease prevalence is unknown, but estimates indicate that 10,000-20,000 new cases are diagnosed in the United States per year. [1, 2] Furthermore, it is estimated that 5-18% of the more than 500,000 total hip arthroplasties performed annually are for osteonecrosis of the femoral head. [2]

(See also the Medscape Reference articles Osteoarthritis [in the Orthopedic Surgery section] and Rehabilitation for Osteoarthritis [in the Physical Medicine and Rehabilitation section], as well as Hip-Spine Syndrome: The Effect of Total Hip Replacement Surgery on Low Back Pain in Severe Osteoarthritis of the Hip and Hip Pain Predicts Disease Progression in Osteoarthritis on Medscape News.)

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