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Polycentric Knee Joint

Item #: 17K47

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Suggested HCPCS Coding: Initial: (Base Code) + L2387
Replacement: L2387

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Stainless steel
With gear drive and free motion joints. Upper and lower bars are curved and notched. For embedding into laminate and thermoplastics. Interchangeable stops to limit extension.


Upper Length from Joint Center 340 mm
Lower Length from Joint Center 300 mm
Pivot Point Distance 16 mm (0.629 in)
Bar Width 21 mm
Bar Thickness 2 mm (0.0787 in)
Joint Thickness 6 mm
Material Stainless Steel
Quantity Pair


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Processing instructions for Ottobock system bars and leg bars – stainless steel –

Product Information: 647G2 (EN/DE/FR/IT/PT/NL/SV/DA/PL/HU/CS/TR/RU/EL)

Publish date: Jul 1, 2013

PDF Document (647G2-INT-03-1307w.pdf | 780 KB)