title: Modular neck femoral stems.
abstract: Following the recall of modular neck hip stems in July 2012, research into femoral modularity will intensify over the next few years. This review aims to provide surgeons with an up-to-date summary of the clinically relevant evidence. The development of femoral modularity, and a classification system, is described. The theoretical rationale for modularity is summarised and the clinical outcomes are explored. The review also examines the clinically relevant problems reported following the use of femoral stems with a modular neck. Joint replacement registries in the United Kingdom and Australia have provided data on the failure rates of modular devices but cannot identify the mechanism of failure. This information is needed to determine whether modular neck femoral stems will be used in the future, and how we should monitor patients who already have them implanted.
authors.affiliation: Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, UK. hk502@ic.ac.uk
authors.forename: H
authors.initials: H
authors.lastname: Krishnan
authors.forename: S P
authors.initials: SP
authors.lastname: Krishnan
authors.forename: G
authors.initials: G
authors.lastname: Blunn
authors.forename: J A
authors.initials: JA
authors.lastname: Skinner
authors.forename: A J
authors.initials: AJ
authors.lastname: Hart
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000379:methods*; D005272:Femur Neck; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008670:Metals / Q000009:adverse effects; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012042:Registries; D012086:Reoperation / Q000295:instrumentation / Q000379:methods; D016896:Treatment Outcome
chemical_list: D008670:Metals
keywords: Double-taper; Exchangeable; Hip; Modular; Neck