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Protecting the trunnion during isolated acetabular component revision total hip arthroplasty: a technical note

Shemesh, Shai MD; Velkes, Steven MD; Kosashvili, Yona MD; Cohen, Nir MD

doi: 10.1097/BCO.0000000000000476
Innovations in Practice

Corrosion at the trunnion-taper junction of the femoral component in total hip arthroplasty has been identified as a potential concern. Failure of the trunnion-taper junction can be initiated by surface micromotions caused by surface contamination. This technique is to be used in cases of isolated acetabular component revision total hip surgeries. Since the prosthetic head is removed during revision of the acetabular component to optimize exposure, the trunnion remains exposed in the surgical field and, therefore, is subjected to scratching and intimate contact with surgical instruments and accumulation of biologic debris. Use of a plastic sleeve protects the trunnion against intraoperative scratching and contamination.

Department of Orthopedic Surgery, Rabin Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel

Financial Disclosure: The authors report no conflicts of interest.

Correspondence to Shai Shemesh, MD, Department of Orthopedics, Rabin Medical Center, Beilinson Campus, 39 Jabotinski St., Petach Tikva 49100, Israel Tel: +972-3-9376150/8; fax: +972-3-9376153; e-mail:

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