Clinical Orthopaedics and Related Research®

, Volume 470, Issue 9, pp 2636–2639 | Cite as

In Brief: Ficat Classification: Avascular Necrosis of the Femoral Head

  • Muhammad Umar Jawad
  • Abdul Ahad Haleem
  • Sean P. Scully
In Brief


The earliest attempt at classifying avascular necrosis of the femoral head was proposed by Ficat and Arlet in 1964 [2], before the advent of MRI. The purpose of the classification was to provide prognostic insight and compare treatment options. Ficat modified the classification to include invasive testing procedures and a preclinical, preradiographic stage in 1985 [1]. Since then the system has been modified a few times to include MRI findings, patient symptoms, modify the description of radiographic findings, and exclude the invasive testing procedures originally described [13, 17]. In a systematic review of the literature, Mont et al. [13] identified 16 different classification systems used to classify and describe avascular necrosis. Of these, the Ficat classification [1, 2] was the most frequently used system (63%), followed by the University of Pennsylvania system [18] (20%), the Association Research Circulation Osseous (ARCO) system [4, 15] (12%), and the Japanese...


Femoral Head Osteonecrosis Avascular Necrosis Radiographic Sign Japanese Orthopaedic Association 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© The Association of Bone and Joint Surgeons® 2012

Authors and Affiliations

  • Muhammad Umar Jawad
    • 1
  • Abdul Ahad Haleem
    • 2
  • Sean P. Scully
    • 3
  1. 1.Department of Orthopedic SurgeryCedars-Sinai Medical CenterLos AngelesUSA
  2. 2.Department of Orthopedic SurgeryKansas City Veterans Administration Medical CenterKansas CityUSA
  3. 3.Department of OrthopedicsOnslow Memorial HospitalJacksonvilleUSA

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