Femoral Head Avascular Necrosis Questions & Answers

Updated: Oct 22, 2018
  • Author: John D Kelly, IV, MD; Chief Editor: Craig C Young, MD  more...
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Questions & Answers

Overview

What is femoral head avascular necrosis (AVN)?

What are early radiographic findings indicative of femoral head avascular necrosis (AVN)?

What is the role of MRI in the evaluation of femoral head avascular necrosis (AVN)?

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

What is the anatomy of the femoral head relative to femoral head avascular necrosis (AVN)?

What are the sport-specific biomechanics of the femoral head avascular necrosis (AVN)?

Presentation

What are the signs and symptoms of femoral head avascular necrosis (AVN)?

What are the physical findings characteristic of femoral head avascular necrosis (AVN)?

What is the role of trauma in the etiology of femoral head avascular necrosis (AVN)?

What are the atraumatic causes of femoral head avascular necrosis (AVN)?

What types of trauma cause femoral head avascular necrosis (AVN)?

What are risk factors for femoral head avascular necrosis (AVN)?

What is the role of atraumatic osteonecrosis in the etiology of femoral head avascular necrosis (AVN)?

DDX

How is femoral head avascular necrosis (AVN) differentiated from acetabular labrum tear?

What are the differential diagnoses for Femoral Head Avascular Necrosis?

Workup

What is the role of lab studies in the evaluation of femoral head avascular necrosis (AVN)?

What is the role of radiography in the diagnosis of femoral head avascular necrosis (AVN)?

What is the Steinberg Classification System for femoral head avascular necrosis (AVN)?

What is the role of MRI in the diagnosis of femoral head avascular necrosis (AVN)?

Which invasive procedures are performed in the diagnosis of femoral head avascular necrosis (AVN)?

Treatment

What is the role of physical therapy in the treatment of femoral head avascular necrosis (AVN)?

What are possible complications of prolonged steroid use in the treatment of femoral head avascular necrosis (AVN)?

What is the role of surgery in the treatment of femoral head avascular necrosis (AVN)?

Which prophylactic interventions are used in the management of femoral head avascular necrosis (AVN)?

Which reconstruction procedures are performed in the treatment of femoral head avascular necrosis (AVN)?

Which medical comorbidities of femoral head avascular necrosis (AVN) may require a specialist consultation?

What is the role of cortisone injections in the treatment of femoral head avascular necrosis (AVN)?

What are the medical concerns during the recovery phase of femoral head avascular necrosis (AVN)?

Medications

What is the role of drug treatment for femoral head avascular necrosis (AVN)?

Which medications in the drug class Cyclooxygenase-2 inhibitors are used in the treatment of Femoral Head Avascular Necrosis?

Follow-up

What are activity restrictions during the treatment of femoral head avascular necrosis (AVN)?

When is arthroplasty indicated in the treatment of femoral head avascular necrosis (AVN)?

How is femoral head avascular necrosis (AVN) prevented?

What is the prognosis of untreated femoral head avascular necrosis (AVN)?

What information should patients at risk for femoral head avascular necrosis (AVN) receive?