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3R55 Polycentric Hydraulic Knee Joint, Titanium


The 3R55 Polycentric Hydraulic Knee Joint, Titanium features an upper and a lower joint section connected to one another by linkage bars. The stance phase stability is achieved through polycentric kinematics.

  • Swing phase is controlled by the built-in hydraulic cylinder
  • Flexion and extension resistance are independently adjustable

  • Activity Level: K3, K4
  • Knee Design Type: 4 Bar Linkage, Hydraulic Swing Phase Control
  • Axis: Polycentric
  • Swing Phase: Hydraulic
  • Stance Phase: Friction
  • Control Frame Material: Titanium
  • Build Height (mm): 90 (with adapter)
  • Product Weight (g): 720
  • Maximum User Weight: 275lbs (125kg)
  • Maximum Knee Flexion Angle: 110 Degrees
  • Proximal Connection: Pyramid Adapter
  • Distal Connection: Pyramid Adapter
  • Trial Period: N/A
  • Warranty: 24 months from delivery date

Manufacturer Recommended HCPCS: L5613
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