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Background:  Squeaking is the most frequently related complication with ceramic on ceramic total hip arthroplasty. Third generation Delta ceramics present improved mechanical properties and so far squeaking has not been reported with this bearing surface. The aim of this study was to analyze the incidence of squeaking with the use of third-generation ceramics. Methods:  This study included 109 hips in 97 patients, with an average age of 49 years (range 17-77 years), an average body mass index of 22.3 (range 19-48). One hundred and two hips were primary total hip arthroplasties, whereas 7 were revisions. Femoral and acetabular components were Pinnacle® (DePuy Orthopaedics, Warsaw, Indiana, USA). The ceramic used was BIOLOX® Delta (Ceram Tec AG, Plochingen, Germany) in all the cases. Results:  Average follow-up was 37 months (range 24- 50 months). Radiographic assessment of the anteversion was made with the Ackland method (range 1°-35°). Inclination (range 22°-67°), acetabulum diameter (range 48-62), size of the femoral head (88 = 36 mm and 21 = 28 mm) and pre and post-operative offset were also evaluated. We observed 2 dislocations, 1 acute superficial infection, 1 periprosthetic fracture and 1 fracture of the ceramic acetabular insert due to incomplete seating of the acetabular liner. No patient referred noise or a squeaking hip. Conclusion:  In this series, squeaking was not observed although the range of anteversion and inclination of the cups was widely variable. Due to its composition and design Delta Ceramic components may have a lower rate of squeaking than second-generation ceramics.

Incidencia de chirridos con el uso de cerámica en cerámica Biolox Delta en artroplastía de cadera