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Single Axis Knee Joint, Lock, Titan.

Item #: 3R33

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Suggested HCPCS Coding: L5811 + L5850

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The upper and lower joint sections are connected through the knee axis by bushings and ball bearings. The adjustable lock secures the joint in extension. The lock is released using the lock cable. Locking occurs automatically at full extension with assistance from the extension assist spring.


Activity Level K1
Maximum Body Weight 275 lbs (125 kg)
Material Titanium
Proximal Connection Pyramid Adapter
Distal Connection Pyramid Adapter
Maximum Knee Flexion Angle 120 degrees
Knee Center to Proximal Connection 39 mm
Product Weight 530 g


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Fabrication Order Form for Transfemoral or Knee Disarticulation

Order Form: (EN)

Publish date: May 1, 2015

PDF Document (13084BTransfemoralProsthesisOrderForm.pdf | 60 KB)

LLP Prosthetist Documentation

Reimbursement: (EN)

Publish date: Apr 21, 2021

PDF Document (LLP_Prosthetist_Documentation_040921.pdf | 897 KB)

LLP Physician Documentation Guide

Reimbursement: (EN)

Publish date: Apr 21, 2021

PDF Document (LLP_PhysicianGuide_040921.pdf | 494 KB)

3R17, 3R33 Single Axis Knee Joint - Instructions for Use

Instructions for Use: 647G34 (EN/DE/FR/IT/ES/PT/NL/SV/PL/HU/RO/HR/TR/EL/JA/ZH)

Publish date: 

PDF Document (647G34_all_INT-24-2004w.pdf | 1 MB)