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Single Axis Knee Joint, Lock

Item #: 3R17

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Suggested HCPCS Coding: L5810 + 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 330 lbs (150 kg)
Material Stainless Steel
Proximal Connection Pyramid Adapter
Distal Connection Pyramid Adapter
Maximum Knee Flexion Angle 120 degrees
Product Weight 695 g


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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)

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: Sep 3, 2020

PDF Document (LLP_Prothetist_Doumentation_122420.pdf | 1 MB)

LLP Physician Documentation

Reimbursement: (EN)

Publish date: Dec 23, 2020

PDF Document (LLP_Physician_Documentation_122320.pdf | 680 KB)