Abstract :
Background: Revision total hip replacement surgery with isolated poly-ethylene liner wear along with a stable uncemented acetabular shell involves the difficult decision of revising the entire acetabular component or only the liner. However, the unavailability of a similar poly liner can be dealt with a novel
technique of cup-in-cup by retaining the stable uncemented shell and cementing a new poly-ethylene liner in it.
Case Report: A 77-year-old male came with complaints of pain in the right hip and a limp of 4 months duration after 17 years of a revision hip surgery. Poly-ethylene liner was found to be worn out intraoperatively with both the uncemented shell and stem very stable. The same company’s poly-ethylene
liner was not available. To prevent extensive revision in a high surgical-risk patient and to prevent blood and bone loss, a new polyethylene cup was cemented in the old stable uncemented shell. At 3 years of short-term follow up patient can walk pain-free independently.
Conclusion: The “cup-in-cup” technique with cemented poly-ethylene cup into a retained well-fixed and well-positioned uncemented shell is good and gives promising result.
Keyword :
Revision hip, Isolated poly liner wear, Cup- in- Cup, Stable acetabular shell, Novel technique.