From Which Medical Device
The GMK knee is a knee replacement system from Medacta. The system includes a unicompartmental knee, fixed, mobile and semiconstrained primary versions and a revision system. Cemented and uncemented versions are available.
The system has been conceived as an evolution of two pre-existing systems, the Evolis fixed bearing knee and the Cinetique mobile bearing system, both of which have been in use for some years.
The design is relatively bone sparing – the distal and posterior cuts are 8mm, the same as Stryker’s Triathlon knee, but less than the DePuy’s PFC knee. The geometry includes a 4 degree anterior cut to reduce the risk of anterior femoral notching. The femoral component is a “j-curve” in cross-section, with a reduced radius in flexion. The trochlear groove is anatomic, or orientated in the direction of the quadriceps pull.
There are no published results for the GMK knee, but early results with 1 year of follow up from a 5 centre pilot study are available from the manufacturer. The 7th report of the UK National Joint Registry (2010) recorded 34 implantations of the device.
The primary knee is available with MyKnee Patient Matched Instrumentation. This is a customised jig system in which CT or MRI images are used to plan ideal resection planes on a web-based platform (the MyKnee website). The jigs produced include slots for the proximal tibial and distal femoral resection planes. The femoral jig has two holes for the placement of fixation pegs for the chamfer cuts.
Medacta have a navigation system, known as iMNS which can be used for the implantation of the GMK knee.
Your opinion matters to others - rate this device or add a comment
Did you know you can Register for FREE with this website?
Registration gives you full access to all of the features of WhichMedicalDevice. Find out more ...
WhichMedicalDevice is a FREE resource created by clinicians for clinicians.
Registration is free and gives you unlimited access to all of the content and features of this website.
Find out more...Registration is free and gives you unlimited access to all of the content and features of Which Medical Device. Find out more...
Which Medical Device is a community of clinicians sharing knowledge and experience of the devices and procedures we use on a daily basis. We ask that our members register with us so that we can maintain the unbiased and independent nature of our content. Registration is quick and free.
We do not make your details available to any third parties nor do we send unsolicited emails to our members. You can read our Privacy Policy here.
Selecting this option will remember your log in details whenever you return to this website. DO NOT use this option if you share this computer with others.
The combined rating given to the device by our editors.
The combined rating given to the device by our members.
Click here to add this device to My Medical Devices
Selecting this option will remember your log in details whenever you return to this website. DO NOT use this option if you share this computer with others.