Sunday, May 29, 2022

quad membral limb deficiency

James Adderson

The patient is a 13 year old female with bilateral end bearing knee

disarticulations and bilateral very short below elbows. She has worn

bilateral self suspending external powered prosthesis until about 12-18

months ago. The lower extremity prosthesis include polycentric joints and

non articulating dynamic feet and have been suspended using two single

strap silesian bandages fastened with velcro. For activities such as skiing

and soccer she wears reinforced thermoplastic liners only. These are self

suspending until they are fabricated with knees and feet. The goal at this

time is to eliminate the straps and provide self suspending lower extemity

prostheses. We have tried commercial silicone liners trimmed proximal to

reduce surface tension (her legs are conical in shape and she does not have

large condyles). She is able to don these with some difficulty but it takes

too much time (8-12min each compared to less than a 1min each for her

current prosthesis). She removes her prosthesis at school for gym and is

independent to don after class. She is not interested in any type of

prosthesis that requires creams or adaptive devices for donning or doffing

that she woud have to carry around. I look forward to any ideas or

suggestions related to socket design

James Adderson CP(c)

Queen Elizabeth II Health Sciences Centre

Halifax, Nova Scotia



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