J Knee Surg 2016; 29(05): 391-395
DOI: 10.1055/s-0035-1564595
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Can Tibial Cementation Be Enhanced in Knee Arthroplasty Surgery?

Richard W. Westerman
1   University Hospitals Coventry and Warwickshire, Coventry, United Kingdom
› Author Affiliations
Further Information

Publication History

09 February 2015

08 August 2015

Publication Date:
26 September 2015 (online)

Abstract

Aseptic loosening of the tibial component continues to be a significant mode of failure in total knee arthroplasty surgery. Surface cemented components preserve tibial bone stock, but are reliant on a strong bone–cement interface. This study compares standard surface cemented tibial component design to a tibial component with the addition of an undersurface cement containment skirt. The hypothesis was that the addition of a 2-mm underside skirt would allow cement containment and pressurization during implantation, which might improve the overall survival. Two identical tibial components were used, out of which one had the 2-mm underside skirt removed for the purposes of this study. Overall, 12 tibial Sawbones were prepared identically and transducers placed in the medial and lateral plateau. Each component was implanted six times, according to the manufacturer's operative technique. The series of implantation experiments showed no difference in cement pressurization (p = 0.86) regardless of the tibial component design used, with a wide variation in pressure measurements occurring in both groups. The tibial component skirt has not demonstrated any enhancement in cement pressurization. The cement containment skirt might still be advantageous by increasing the cement mantle thickness without causing excessive bone penetration; however, the biological effects cannot be predicted without further clinical evaluation.

 
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