Adverse tissue reactions in modular exchangeable neck implants: a report of two cases.

Werner, S Douglas; Bono, James V; Nandi, Sumon; Ward, Daniel M; Talmo, Carl T · J Arthroplasty · 2013

case_report · Level V

Where this comes from

Abstract

Dual-modular femoral stems with exchangeable necks theoretically allow optimization of hip joint biomechanics via selective restoration of femoral anteversion, offset, and limb length. A potential disadvantage is the possible generation of metal ions and debris by fretting and crevice corrosion at the additional stem-neck interface. We present 2 cases of early-onset adverse inflammatory tissue reactions as a result of accelerated corrosion at the stem-neck interface of a dual-modular implant, requiring subsequent revision of well-fixed components.

Medical subject headings

Anatomy