Excision arthroplasty

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  • Femoral head and neck excision (FHNE) to create pseudoarthrosis of hip joint.


  • Salvage procedure for a variety of hip joint diseases - usually trauma - acetabular/femoral head or neck fractures, osteoarthritis, occasionally chronic coxo-femoral luxations or hereditary hip abnormalities.


  • Can be carried out bilaterally and simultaneously if required.


Materials required

Minimum equipment

  • Standard surgical kit    .
  • Osteotome.
  • Surgical instruments: bone holding forceps - FergussonFig.1 Surgical instruments: bone holding forceps - Fergusson
    Bone holding forceps   (Fig. 1)  .
  • Rongeurs.
  • Rasp.

Ideal equipment

  • Gigli saw or mechanical saw .
  • Self-retaining retractors.
  • Hatt spoon.
  • Periosteal elevator.

Ideal consumables

  • Irrigating solution.



  • Sciatic nerve damage (rarely).


  • If performed before muscle athrophy too severe prognosis is better.
  • Depends on integrity of surrounding soft tissues - too much scar tissue causes lameness due to reduced range of movement of pseudoarthrosis; pressure on sciatic nerve can cause lameness.
  • Immature animals respond better than adults.
  • Can be carried out bilaterally and simultaneously if required.
    Unilateral surgery often causes residual dysfunction or lameness due to post-operative asymmetry.

Reasons for treatment failure

  • Bony spike left on femoral neck will cause lameness.
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