Featuring a polycentric design for stability during stance and an adjustable extension assist spring to provide swing control, the Child’s 4-bar Knee is a durable and lightweight paediatric knee designed for active children.
Available with a choice of proximal adapters including a Standard Socket Alignment Kit allowing for A-P shift, rotation and flexion, extension, adduction and abduction. A Lamination Socket Adapter Kit allows for A-P shift and is ideal where a minimal build height is required. All alignment adjustments can be made using the easily accessed single bolt.
The knee comes complete with a 25mm lightweight carbon fibre tube and 3 different extension springs for optimal fitting.
Improvements in Clinical Outcomes using four-bar, polycentric knees compared to monoaxial knees
1. | de Laat FA, van Kuijk AA, Geertzen JH, et al. Cosmetic effect of knee joint in a knee disarticulation prosthesis. J Rehabil Res Dev 2014; 51: 1545. | |
2. | Sensinger JW, Intawachirarat N, Gard SA. Contribution of prosthetic knee and ankle mechanisms to swing-phase foot clearance. IEEE Trans Neural Syst Rehabil Eng 2012; 21: 74–80. | |
3. | Andrysek J, Naumann S, Cleghorn WL. Design characteristics of pediatric prosthetic knees. IEEE Trans Neural Syst Rehabil Eng 2004; 12: 369–378. | |
4. | Gard SA, Childress DS, Uellendahl JE. The influence of four-bar linkage knees on prosthetic swing-phase floor clearance. JPO J Prosthet Orthot 1996; 8: 34–40. |
See all the Clinical Evidence for every Blatchford product in our Clinical Evidence Finder Tool.
Max. User Weight:
60kg
132lb
Activity Level:
1-4
Component Weight:
335g†
12oz†
Build Height:
105mm
4⁹/₆₄"
Proximal Adapters
Child’s TF alignment kit | 189226 |
Lamination Socket Alignment Kit | 189126 |
M30 Laminate Adapter 4 Prong Kit | 189626 |
M30 Childs Adapter Kit | 189726 |
Female Mini Pyramid Pylon Kit 25mm | 409099 |
Part Number:
Child’s 4-bar Knee with 330mm tube | 019245 |
Child’s 4-bar Knee without tube | 239133 |
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