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Polycentric Knee Joint

Item #: 17K43
Polycentric knee joint bars
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Suggested HCPCS Coding: Initial: (Base Code) + L2387
Replacement: L2387

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Stainless steel With gear drive, free motion joints, concave half-round bar profile, interchangeable stops to limit extension

Practical recommendation:
To align the orthosis knee joints with the compromise pivot point according to Nietert, the 743Y56=1 size 1 adjustment adapter is aligned with the compromise pivot point. Therefore the compromise pivot point of the polycentric gear drive joints is centred between the two joint screws.


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


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