title: New technique for revising dynamic hip screw fixations with lag screw in situ.
abstract: Salvage total hip arthroplasty for failed Dynamic hip screw fixation has widely been advocated as a viable treatment option with successful functional outcomes. However, when revising a dynamic hip screw, removal of the lag screw can pose problems in terms of difficulty and risk of iatrogenic fractures. This is because the lag screw is not reverse-cutting and therefore a large torque is generated which can lead to such fractures. We report on a series of eight cases in which we excised the femoral head with the lag screw in situ. We recommend this technique as a safe and effective method to reduce the risk of iatrogenic fractures.
authors.affiliation: Department of Orthopaedics, Monklands District General Hospital, Airdrie, UK.
authors.forename: Alexander C
authors.initials: AC
authors.lastname: Campbell
authors.forename: Samir
authors.initials: S
authors.lastname: Goyal
authors.forename: Nicholas J K
authors.initials: NJ
authors.lastname: Miller
authors.forename: Satyajit
authors.initials: S
authors.lastname: Sinha
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation / Q000379:methods*; D001863:Bone Screws; D005264:Femoral Fractures / Q000601:surgery; D005270:Femur Head / Q000601:surgery; D005272:Femur Neck / Q000601:surgery; D005593:Fracture Fixation, Internal / Q000295:instrumentation; D006622:Hip Prosthesis; D006801:Humans; D016268:Internal Fixators; D011475:Prosthesis Failure; D012086:Reoperation / Q000379:methods*