A novel technique for the removal of well-fixed cementless, large-diameter metal-on-metal acetabular components.
Removing well-fixed cementless acetabular components can be a challenge for every orthopedic surgeon involved in revision hip arthroplasty. Forceful removal of such components often leads to acetabular bone loss and compromises reimplantation of a new socket. Instruments like the Explant Acetabular Cup Removal System (Zimmer, Warsaw, Ind) are developed to avoid such issues. We report a novel technique, cementing a polyethylene liner inside the uncemented metal-on-metal shell and using systems such as the Explant to safely extract it without the need for matching large-diameter heads. We successfully used this technique on 3 occasions and recommend its use.
Olyslaegers
Christophe
C
Orthopaedic Department, The Royal Bournemouth and Christchurch Hospitals NHS Foundation Trust, Bournemouth, Dorset, UK.
Wainwright
Tom
T
Middleton
Robert G
RG
D000077:Acetabulum / Q000601:surgery*; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D002484:Cementation; D020878:Device Removal / Q000379:methods*; D006622:Hip Prosthesis; D006801:Humans; D012086:Reoperation