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Tantalum monoblock cups in total hip arthroplasty: clinical results and outcome predictors
Vol 32, Issue 6S1, 2018
Abstract
This study aims to report the minimum 2-year follow-up results of the tantalum monoblock cup in primary THA and to identify possible outcome predictors. Eighty-eight porous tantalum monoblock acetabular cup in primary THA were reviewed. The Harris Hip Score (HHS) and the Short Form-36 Health Survey (SF-36) were used for the evaluation of outcomes. Radiographic evaluation included acetabular component orientation, presence of bone gaps, radiolucent lines, new bone formation and heterotopic ossifications. After a mean follow-up of 55.4±19.5 months, no component revision was noted. The HHS improved from 43.6±14.6 to 88.3±8.4 (P less than 0.001). The mean physical domain of the SF-36 did not significantly differ from that of age-matched, healthy subjects (P=0.072); the mean mental component of the SF-36 was significantly higher than that of age-matched, healthy subjects (P less than 0.001). Negative determinants of postoperative HHS (total adjusted R2=0.328) using tantalum monoblock cups were age at surgery (R2=0.164, P less than 0.001), female sex (R2=0.103, P less than 0.001), and acetabular inclination (R2=0.084, P equals 0.003).
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Copyright (c) 2018 O Galasso, M De Gori, S Cerbasi, F Familiari, P Recano, G Balato, G Gasparini, M Mariconda
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Medical Genetics, University of Torino Medical School, Italy

Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy