Browse by author
Lookup NU author(s): Dr Scott Muller,
Professor David Deehan,
Professor Paul Gregg,
Professor Andrew McCaskie
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
The role of modular tibial implants in total knee replacement is not fully defined. We performed a prospective randomised controlled clinical trial using radiostereophotogram metric analysis to compare the performance of an all-polyethylene tibia with a metal-backed cruciate-retaining condylar design, PFC-Sigma, total knee replacement for up to 24 months. There were 51 patients who were randomised into two treatment groups. There were 10 subsequent withdrawals, leaving 21 all-polyethylene and 20 metal-backed tibial implants. No patient was lost to follow-up. There were no significant demographic differences between the groups. At two years one metal-backed implant showed migration > 1 mm, but no polyethylene implant reached this level. There was a significant increase in the SF-12 and Oxford knee scores after operation in both groups. In an uncomplicated primary total knee replacement the all-polyethylene PFC-Sigma tibial prosthesis showed no statistical difference in migration from that of the metal-backed counterpart. There was no difference in the clinical results as assessed by the SF-12, the Oxford knee score, alignment or range of movement at 24 months, although these assessment measures were not statistically powered in this study.
Author(s): Muller SD, Deehan DJ, Holland JP, Outterside SE, Kirk LMG, Gregg PJ, McCaskie AW
Publication type: Article
Publication status: Published
Journal: Journal of Bone and Joint Surgery: British Volume
ISSN (print): 0301-620X
Publisher: British Editorial Society of Bone and Joint Surgery
Altmetrics provided by Altmetric