She was born without a left forearm but, from the age of seven, refused to wear a prosthetic arm and since then has never used a prosthesis.
She has also appeared on television in Celebrity Ready Steady Cook with Jonathan Phang, and has modelled and been interviewed on This Morning and BBC Breakfast.
[14] In 2020, she appeared as a celebrity judge on the second episode of Sky TV's Rankin's 2020, in his search for the best photographers, capturing the spirit of that extraordinary year in pictures taken by members of the public.
Knox continued to break fashion barriers in 'Tenk Nytt' or 'Think New' advertising campaign for Oslo City.
[citation needed] Knox's photo was featured in British Vogue magazine in April 2013.
[29] In 2008, Knox launched a charity auction of celebrity shoes to raise money for landmine victims in aid of the Mines Advisory Group.
[31] In 2013, Knox became an ambassador for Reach Charity, the association for children with upper limb deficiency.
[35] On three occasions (2014, 2016 and 2017), Knox was voted one of the top 100 most influential people with a disability by the Shaw Trust and listed in the Power 100.