{"id":5529,"date":"2020-02-01T08:06:20","date_gmt":"2020-02-01T07:06:20","guid":{"rendered":"https:\/\/www.permedica.it\/gks-butterfly\/"},"modified":"2026-07-16T11:12:18","modified_gmt":"2026-07-16T09:12:18","slug":"gks-butterfly","status":"publish","type":"post","link":"https:\/\/www.permedica.it\/en\/gks-butterfly\/","title":{"rendered":"GKS BUTTERFLY"},"content":{"rendered":"

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Product range:<\/strong> Standard
\nand Antiluxation version<\/p>\n<\/div><\/div><\/div>

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GKS BUTTERFLY<\/strong> is a three-compartimental gliding knee prosthesis, modular and anatomic, available in Right and Left version.
\nSemi-constrained and stabilized in all planes it is indicated for primary replacement in varus\/valgus axial corrections;
\nand for revision cases.<\/p>\n<\/div><\/div><\/div>

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A natural choice<\/p>\n

A rotational axis (a) passing at the internal tibial spine level, parallel to but not coincident with the mechanichal axis (b) and perpendicular but not incident with the (posteriorized) flexion-extension axis (c) has been preferred by engineers and Surgeons since it allows the most natural movement as well as the greatest mechanical “harmony” between implant components.<\/p>\n<\/div>

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Flexion and Rotation<\/p>\n

Particular care has been given to the trochlear shape, optimized in the laboratory after computer processing, in order to avoid patellar dislocation even at maximum flexion degree (130-140\u00b0). The degree of rotation improves as the degree of flexion increases; rotation is not allowed with the leg fully extended.<\/p>\n

In the Antiluxation version the polyethylene insert binds the femoral component on the tibia avoiding dislocation.<\/p>\n<\/div>

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Tibial component<\/p>\n

Total and hemi tibial augments are available in different thicknesses for each size and can be fixed to the inferior face of the tibial component by means of proper screws.<\/p>\n<\/div>

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Modular intramedullary stems<\/p>\n

The intramedullary stems are available both in cemented and cementless version, to be screwed onto the femoral and tibial components through Morse-taper connection.
\nDistal centralizers are foreseen for 105 and 160mm length cemented stems.<\/p>\n<\/div>

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\"Butterfly<\/a><\/span><\/div><\/div><\/div><\/div>
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The GKS BUTTERFLY prosthesis can be combined with Design Your Own modular components to face complex anatomical situations (e.g. tumoral applications).<\/p>\n<\/div>

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MATERIALS<\/strong><\/p>\n

Femoral and tibial components: Cobalt Chromium alloy ISO5832\/4. Articular insert, femoral bush, femoral spacer, patella and distal centralizers: ultra high molecular weight polyethylene (UHMWPE) ISO5834\/1\/2. Cemented stems and MICROLOY\u00ae femoral bush: Cobalt Chromium alloy ISO5832\/12.
\nPress-fit stems, Nickel Free stems and Tibial Augments, screws for tibial augments: Titanium Aluminium Vanadium alloy ISO5832\/3.
\nTibial Augments:PM734 highly nitrogenized stainless steel forged alloy ISO5832\/9 or Titanium Aluminium Vanadium alloy ISO5832\/3 (Nickel Free version).<\/p>\n<\/div>

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<\/i>Knee Products <\/a><\/p>\n<\/div>

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