What is the role of arthroplasty in the treatment of osteoarthritis (OA)?

Updated: Jun 10, 2020
  • Author: Carlos J Lozada, MD; Chief Editor: Herbert S Diamond, MD  more...
  • Print
Answer

Arthroplasty consists of the surgical removal of joint surface and the insertion of a metal and plastic prosthesis (see the images below). The prosthesis is held in place by cement or by bone ingrowth into a porous coating on the prosthesis. The use of cement results in faster pain relief, but bone ingrowth may provide a more durable bond; accordingly, prostheses with a porous coating are used in younger patients.

Anteroposterior radiograph shows knee replacement Anteroposterior radiograph shows knee replacement in 1 knee and arthritis in the other, with medial joint-space narrowing and subchondral sclerosis.
Anteroposterior radiograph of the pelvis and hips Anteroposterior radiograph of the pelvis and hips shows an arthritic hip not treated surgically and a total hip replacement.
Anteroposterior radiograph obtained after knee rep Anteroposterior radiograph obtained after knee replacement.
Lateral radiograph obtained after knee replacement Lateral radiograph obtained after knee replacement (same patient as in the above image).

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!