Evidence about the Stryker Triathlon Total Knee Replacement System | Which Medical Device
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Orthopaedics
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Total knee replacement
The 11th Annual NJR report contains data relating to 1.6 million arthroplasty procedures.
Credits: National Joint Registry of England and Wales
In a review of NJR data, the authors demonstrated wide variation in patellar resurfacing by implant, but could not demonstrate a benefit for patellar resurfacing.
Credits: PubMed: J Arthroplasty. 2013 Jun 12. pii: S0883-5403(13)00372-0. doi: 10.1016/j.arth.2013.05.001. [Epub ahead of print]
In an RSA study the authors showed no kinematic advantages of the Triathlon mobile bearing over the fixed bearing design.
Credits: PubMed: Clin Biomech (Bristol, Avon). 2012 May;27(4):398-402. doi: 10.1016/j.clinbiomech.2011.10.013. Epub 2011 Nov 4.
This meta-analysis compares outcomes of posterior cruciate-retaining and posterior stabilized prostheses.
Ultimately, 1114 patients (1265 knees) were compared. Statistical analysis revealed a significant difference in flexion and range of motion in favor of posterior-stabilized knees,but no difference in complication rates.
The clinical importance of this remains unknown. The decision to use one design versus the other should rest with the surgeon's preference and comfort with a particular design.
Credits: PubMed: J Arthroplasty. 2013 Mar;28(3):439-44.
Credits: Bone Joint Res. 2012 Dec 1;1(12):315-23. doi: 10.1302/2046-3758.112.2000064. Print 2012 Dec.
This study from the National Joint Registry demonstrates that patient reported outcomes are partly driven by implant selection. Better outcomes were associated with the NexGen knee.
Credits: J Bone Joint Surg Br. 2012 Aug;94(8):1058-66.
Study compares early migration characteristics of the Duracon and the Triathlon knee and finds little difference at two years. Free Text Link.
Credits: Bone Joint Res. 2012 Dec 1;1(12):315-23.
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