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Polycntr. Hydr. Knee Joint, Titan.

Item #: 3R55

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Suggested HCPCS Coding: L5613
Restrictions to Coding and/or Coverage may apply

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Upper and lower joint sections are connected to one another by linkage bars. Stance phase stability is achieved through polycentric kinematics. The swing phase is controlled by the built-in hydraulic cylinder. Flexion and extension resistance are independently adjustable.


Activity Level K3, K4
Maximum Body Weight 275 lbs (125 kg)
Material Titanium
Proximal Connection Pyramid Adapter
Distal Connection Pyramid Adapter
Maximum Knee Flexion Angle 110 degrees
Knee Center to Proximal Connection 40 mm
Product Weight 720 g


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3R55 Modular Polycentric Knee Joint - Instructions for Use

Instructions for Use: 647G1636 (EN/DE/FR/IT/ES/PT/NL/SV/TR/EL/RU/ZH)

Publish date: 

PDF Document (647G1636_all_INT-11-2004w.pdf | 1 MB)

Fabrication Order Form for Transfemoral or Knee Disarticulation

Order Form: (EN)

Publish date: May 1, 2015

PDF Document (13084BTransfemoralProsthesisOrderForm.pdf | 60 KB)

LL Prosthetic Documentation Packet

Reimbursement: (EN)

Publish date: Jul 20, 2020

PDF Document (LLP_DocumentationPkt_072020.pdf | 1 MB)