title: Dislocation of preformed antibiotic-loaded cement spacers (Spacer-G): etiological factors and clinical prognosis.
abstract: This study assesses the factors associated with the dislocation of the Spacer-G and its clinical prognosis. Seventy-four spacers were reviewed. Acetabular bone defects, proximal femoral cementation of the spacer and its relationship to the size of the head spacer were not associated with dislocation. The only variable that it was possible to associate with dislocation was when the previous stem, prior to the spacer placement, was a cemented stem. In patients who experienced a dislocation, infection was not cured during the interim period more frequently than patients who had not experienced a dislocation (P = 0.001) and the final clinical hip evaluation was also worse (P < 0.001). The study concludes that the surgeon should assess different surgical aspects in order to avoid mechanical complications such as dislocation and its consequences.
authors.affiliation: Department of Orthopaedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Guillem
authors.initials: G
authors.lastname: Bori
authors.affiliation: Department of Orthopaedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Ester
authors.initials: E
authors.lastname: García-Oltra
authors.affiliation: Department of Infectious Diseases, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Alex
authors.initials: A
authors.lastname: Soriano
authors.affiliation: Laboratory of Biostatistics and Epidemiology, Autonomus University of Barcelona, Biostatistics and Data Management Platform, IDIBAPS, Hospital Clinic, University of Barcelona, Barcelona, Spain.
authors.forename: José
authors.initials: J
authors.lastname: Rios
authors.affiliation: Department of Orthopaedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Xavier
authors.initials: X
authors.lastname: Gallart
authors.affiliation: Department of Orthopaedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Garcia
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001424:Bacterial Infections / Q000601:surgery / Q000628:therapy*; D001843:Bone Cements; D002484:Cementation; D020878:Device Removal; D005260:Female; D006621:Hip Joint; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D019904:Polymethyl Methacrylate; D011379:Prognosis; D012189:Retrospective Studies
chemical_list: D000900:Anti-Bacterial Agents; D001843:Bone Cements; D019904:Polymethyl Methacrylate
keywords: dislocation; hip; infection; spacer