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CERAMIC-ON-CERAMIC BEARING SURFACES IN TOTAL HIP ARTHROPLASTY: IS IT A SAFE OPTION FOR THE YOUNGER PATIENT?



Abstract

The ideal bearing surface for total hip arthroplasty is still an area of debate.Increasing numbers of total hip replacements are being done in the younger patient population.Ceramic-on-ceramic bearings have gained popularity due to their low wear rate.However, ceramic fractures with subsequent catastrophic failures have been reported. This study reports on early results of ceramic-on-ceramic total hip replacements.

This is a study analyzing a prospectively collected data for seventy-five ceramic-on-ceramic total hip replacements with minimum follow up of eighteen months. Average age at time of surgery was forty-seven years. This study focused on the complications of this ceramic population. Complications included: One posterior dislocation, two intra-operative calcar fractures that needed wiring, one intra-operative fracture of the acetabular liner, two cases of impingement (one which resulted in a revision), and one periprosthetic fracture. The two patients that required further surgery were the periprosthetic fracture after a fall and one for component impingement. No revisions were performed for loosening or catastrophic failures. No wear, loosening, or osteolysis was seen on radiographs. The SF-12, WOMAC, and Harris Hip scores were not significantly different from other reported hip series.

Ceramic-on-ceramic bearing surfaces in total hip arthroplasty are a safe option with outcome equivalent to standard THR in the short term. Ceramic Hips may provide a more durable prosthesis, especially in young and active patients. Intra-operative technical guidelines that may enhance the quality of the results will be presented and fully disclosed.

Correspondence should be addressed to: Cynthia Vezina, Communications Manager, COA, 4150-360 Ste. Catherine St. West, Westmount, QC H3Z 2Y5, Canada