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J Arthroplasty. 2014 May;29(5):883-8. doi: 10.1016/j.arth.2013.10.014. Epub 2013 Oct 22.

Dislocation of preformed antibiotic-loaded cement spacers (Spacer-G): etiological factors and clinical prognosis.

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  • 1Department of Orthopaedic Surgery, Hospital Clínic, University of Barcelona, Barcelona, Spain.
  • 2Department of Infectious Diseases, Hospital Clínic, University of Barcelona, Barcelona, Spain.
  • 3Laboratory of Biostatistics and Epidemiology, Autonomus University of Barcelona, Biostatistics and Data Management Platform, IDIBAPS, Hospital Clinic, University of Barcelona, Barcelona, Spain.


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.

© 2014.


dislocation; hip; infection; spacer

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