Saturday, May 14, 2022


Cheryl Lewis

Hello All,

I have a very difficult case which I am faced with. A patient who has been using a CROW for almost one year has now been Rx’d a KAFO for severe OA and knee instability. I am usually up for any challenge (in Ontario we have funding if the device is made by me in-house – Central fab not covered) but this patient is 452# and I am not even sure what hinges would be rated that high – if any. The individual does minimal walking but does need to climb 5 steps and a few steps for transferring.

I am posing 2 questions – Does anyone know of a joint(s) which could handle this?

Has anyone tried this?

Any hints, recommendations or suggestions would be much appreciated.

Thanks in advance for your input!


Cheryl Lewis BSc(HK), CO(c)
Certified Orthotist
Owner, CK Ortho Inc
Ph 519-436-9670


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