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  • Summary
  • Epidemiology
  • Etiology
  • Classification of Bone Loss
    • Acetabulum
      • AAOS Classification of Acetabular Bone Loss
      • Type I (segmental)
      • Loss of part of the acetabular rim or medial wall
      • Type II (cavitary)
      • Volumetric loss in the bony substance of the acetabular cavity
      • Type III (combined deficiency)
      • Combination of segmental bone loss and cavitary deficiency
      • Type IV (pelvic discontinuity)
      • Complete separation between the superior and inferior acetabulum
      • Type V (arthrodesis)
      • Arthrodesis
      • Paprosky Classification of Acetabular Bone Loss
      • Type I
      • Minimal deformity, intact rim
      • Type IIA
      • Superior bone lysis with intact superior rim
      • Absent superior rim, superolateral migration
      • Type IIC
      • Localized destruction of medial wall
      • Type IIIA
      • Bone loss from 10am-2pm around rim, superolateral cup migration
      • Bone loss from 9am-5pm around rim, superomedial cup migration
    • Femur
      • AAOS Classification of Femoral Bone Loss
      • Type I (segmental)
      • Loss of bone of the supporting shell of femur
      • Type II (cavitary)
      • Loss of endosteal bone with intact cortical shell
      • Type III (combined)
      • Combination of segmental bone loss and cavitary deficiency
      • Type IV (malalignment)
      • Loss of normal femoral geometry due to prior surgery, trauma, or disease
      • Type V (stenosis)
      • Obliteration of the canal due to trauma, fixation devices, or bony hypertrophy
      • Type VI (femoral discontinuity)
      • Loss of femoral integrity from fracture or nonunion
      • Paprosky Classification of Femoral Bone Loss
      • Type I
      • Minimal metaphyseal bone loss
      • Type II
      • Extensive metaphyseal bone loss with intact diaphysis
      • Type IIIA
      • Extensive metadiaphyseal bone loss, minimum of 4 cm of intact cortical bone in the diaphysis
      • Type IIIB
      • Extensive metadiaphyseal bone loss, less than 4 cm of intact cortical bone in the diaphysis
      • Type IV
      • Extensive metadiaphyseal bone loss and a nonsupportive diaphysis
  • Presentation
  • Imaging
  • Studies
  • Treatment
  • Surgical Techniques
  • Prognosis
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Recon | THA Revision
  • Recon
  • - THA Revision
23:31 min
10/15/2019
1457 plays
3.6
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