Minimize Complexity,
Maximize Versatility
As the other members of the GMK family, the GMK UNI offers a complete product range to fit different surgeon’s preferences and patient’s conditions.
The GMK UNI has been conceived to be soft tissue friendly. Both implant and instrumentation are designed to fit muscle sparing surgical approaches.
6 Right Medial / Left Lateral sizes
6 Left Medial / Right Lateral sizes
Material: Cobalt-Chrome (Co-Cr-Mo ISO 5832-4) or Cobalt-Chrome (Co-Cr-Mo ISO 5832-4) + SensiTiN coating
Cemented: 1 mm deep pockets
Cementless: Titanium Plasma Spray (MectaGrip) + HA
4 sizes
Material: Cobalt-Chrome (Co-Cr-Mo ISO 5832-4)
Cemented: 1 mm deep pockets
5 Right Medial / Left Lateral sizes
5 Left Medial / Right Lateral sizes
Material: Cobalt-Chrome (Co-Cr-Mo ISO 5832-4) or Cobalt-Chrome (Co-Cr-Mo ISO 5832-4) + SensiTiN coating
Cemented: 0,5 mm deep pockets
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5 Right Medial / Left Lateral sizes
5 Left Medial / Right Lateral sizes
Material: Cobalt-Chrome (Co-Cr-Mo ISO 5832-4) or Cobalt-Chrome (Co-Cr-Mo ISO 5832-4) + SensiTiN coating
UHMWPE - ISO 5834-2 Type 1 (plug)
Ti6-Al4-V - ISO 5832-3 (optional screw)
Cemented: 0,5 mm deep pockets
5 sizes
6 levels of thickness: 8, 9, 10, 11, 12, 14 mm
Material: Machined Ultra High Molecular Weight Polyethylene (UHMWPE - ISO 5832-2 Type 1)
5 Right Medial / Left Lateral sizes
5 Left Medial / Right Lateral sizes
6 levels of thickness: 8, 9, 10, 11, 12, 14 mm
Material: Machined Ultra High Molecular Weight Polyethylene (UHMWPE - ISO 5832-2 Type 1)
Cemented
Design based on the analysis of anthropometric data of a thousand distal femurs collected via the MyKnee Database.
The anatomic distal profile prevents patellar impingement and aids accurate implant sizing and positioning.
Asymmetric design helps prevent edge loading throughout the entire range of motion.
A flexed posterior cut with angled pegs creates a “wedge” effect that improves primary stability, simplifies impaction and avoids implant expulsion during flexion.
Flexed posterior cut allows for deeper flexion whilst minimising the posterior femoral resection.
All sizes have the same femoral resections and peg positions giving intra-operative flexibility, enhanced by compact and efficient instrumentation.
Low profile/smaller instruments easily adapt to minimal exposure and patella-in-place procedures.
Spacer-mounted cutting blocks: ensure that all femoral resections create balanced flexion and extension gaps.
Compact instrumentation: only two trays are required to complete a GMK UNI surgery.
DESIGN RATIONALE
[1] Ries M D, “Highly Cross-Linked Polyethylene. The Debate is Over-In Opposition”, The Journal of Arthroplasty, 20:59-62, 2005.
[2] Kondo et al. “Arthroscopy for evaluation of polyethylene wear after total knee arthroplasty”, J Orthop Sci, 13:433-437, 2008. Orthop Sci, 13:433-437, 2008
[3] Baker et al., “The effects of degree of Crosslinking on the fatigue crack initiation and propagation resistane of orthopedic-grade polyethylene”, J Biomed Mater Res A, 66(1):146-54, 2002.
[4] Muratoglu et al., “Unified wear model for highly crosslinked ultra-high molecular weight polyethylenes (UHMWPE)”, Biomaterials, 20:1463-70, 1999.
[5] Polyethylene in TKA: Do we really need cross-linked polyethylene?, MORE Journal Vol. 1 May 2011
EXPERIENCE THE SYNERGY BETWEEN THE GMK UNI AND MYKNEE
Medacta offers you the opportunity to experience an unicondylar knee replacement system with the enhanced accuracy and proven efficiency of a system specifically designed for each individual patient: the synergy between GMK UNI and MyKnee UNI.
Go to the MyKnee Educational Program
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