title: Notching of the femoral stem neck in metal-on-metal total hip replacement: a case report.
abstract: We report a case of impingement in a metal-on-metal total hip replacement causing both notching of the femoral stem neck and aseptic loosening of the acetabular component. The acetabular component was inserted in excessive anteversion. The femoral stem and acetabular components were retrieved. A larger femoral head was used, and an acetabular component was placed in a less anteverted position. Intra-operative testing through different ranges of movement is recommended to identify potential impingement.
authors: Department of Orthopaedics and Traumatology, Queen Mary Hospital, Hong Kong. leungkahei@hotmail.com
authors: Ka-Hei
authors: KH
authors: Leung
authors: Kwong-Yuen
authors: KY
authors: Chiu
authors: Fu-Yuen
authors: FY
authors: Ng
authors: Li
authors: L
authors: Yin
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D005260:Female; D057925:Femoracetabular Impingement / Q000209:etiology*; D005272:Femur Neck; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D061825:Metal-on-Metal Joint Prostheses / Q000009:adverse effects*; D008875:Middle Aged; D011475:Prosthesis Failure
keywords: arthroplasty, replacement, hip; metal-on-metal joint prostheses; postoperative complications