Durable, versatile and lightweight, the SpryStep® KO combines the power of modern composite manufacturing with trusted Thuasne technologies. Recommended for: Moderate to severe medial or lateral osteoarthritis as well as patients who have OA in combination with ligament instability.FeaturesPatented adjustable Dual LoadShiftersThuasne’s patented TM5+ hingeExclusive Synergistic Suspension StrapRotation control tibial shellGreater shell-to-skin contact for maximum control (Full Shell Design)OptionsLengths 12,13,14,15,16Compression/Suspension anti-migrationpackageFlexion stop kit (extension stop kit included)SizingCustom from a digital scan