VEDAT URUÇ, Raif ÖZDEN, İbrahim Gökhan DUMAN, AYDINER KALACI

Five cases of early dissociation between the bipolar hip endoprosthesis cup components; either spontaneously or during reduction maneuvers

Bipolar hemiarthroplasty is frequently used in the treatment of intracapsular hip fractures. Dissociationof the bipolar components can happen during the hip dislocation, the reduction maneuvers, or spontaneously without any dislocation. Here we report early dissociation between bipolar components in twocases during the attempt of closed reduction maneuvers and three cases with spontaneous dissociationwithout any trauma. To prevent or minimize this complication; the reduction of dislocated hips must beachieved very gently under general anesthesia withfluoroscopic control. During the initial operation thesurgeons must be sure that the bipolar components are locked to each other and afterŞnal reduction,especially in osteoarthritic acetabulums, that the cup position is not in varus position.© 2017 Publishing services by Elsevier B.V. on behalf of Turkish Association of Orthopaedics andTraumatology. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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