3R39 Modular Single Axis Knee Joint with Lock

The 3R38 and 3R39 modular knee joints offer your child the highest level of stability. Great safety creates trust and thus promotes your child's mobility.

3R39 Aluminum
3R39 - Modular Single Axis Knee Joint with Lock from Otto Bock.


Lightweight aluminum pediatric knee, single axis, with proximal adjustment pyramid and distal tube clamp.
For weights up to 45 kg / 99 lbs., 145 cm / 57 in. height and 21 cm foot size (children’s European size 3).


Article number 3R39
Proximal connection adjustment pyramid
Distal connection tube clamp Ø 22 mm
Weight 145 g
Flexion angle 145°
System height 24 mm
Proximal system height 2 mm
Distal system height 22 mm
Material Aluminum
Maximum weight  45 kg / 99 lbs




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