![Samera Tomlinson, 31, and David Allen, 27, decided, after being advised by doctors, that the only way Marnie would lead a normal life was to undergo a leg amputation.[Photo: IC]](http://img3.zhytuku.meldingcloud.com/images/zhycms_chinaplus/20181211/1643d100-cfa5-46b6-b162-b27077604612.jpg?x-oss-process=image/resize,w_650)
A three-year-old English toddler has taken her first steps with her prosthetic leg.
Marnie Allen-Tomlinson had her lower left leg amputated in October after enduring years of agony.
![Marnie broke her leg at 14 months old. She was diagnosed with pseudarthrosis, a condition that leaves her prone to breakages, and underwent surgery to fuse the bone back together but it failed to work [Photo: IC]](http://img1.zhytuku.meldingcloud.com/images/zhycms_chinaplus/20181211/270785cd-1596-490f-a2a8-b633d52e87dc.jpg?x-oss-process=image/resize,w_650)
After being diagnosed with pseudarthrosis, she underwent surgery to fuse the bone back together but it failed to work.
![Marnie Allen-Tomlinson's leg at 8 weeks old - this is what her leg looked like when she was born [Photo: IC]](http://img0.zhytuku.meldingcloud.com/images/zhycms_chinaplus/20181211/a7c58eb5-3032-438e-ab29-67850a99e6c3.jpg?x-oss-process=image/resize,w_650)
Pseudarthrosis is a condition that leaves one prone to breakages and a complication of the genetic disorder neurofibromatosis, which leads to tumours growing on nerve tissue.
![Marnie being fitted with a new leg [Photo: IC]](http://img2.zhytuku.meldingcloud.com/images/zhycms_chinaplus/20181211/efb24372-ab30-4750-a1b9-6c7184e02af6.jpg?x-oss-process=image/resize,w_650)
Marnie’s parents decided, after being advised by doctors, that the only way Marnie would lead a normal life was to undergo the amputation.
![Marnie receiving training with her new leg [Photo: IC]](http://img3.zhytuku.meldingcloud.com/images/zhycms_chinaplus/20181211/d74e79b6-9abb-4345-9ea1-09abf63fb11f.jpg?x-oss-process=image/resize,w_650)
One month after the surgery, Marnie was fitted with her prosthetic and is able to walk again for the first time.
![Marnie standing with her new leg and with a big smile [Photo: IC]](http://img0.zhytuku.meldingcloud.com/images/zhycms_chinaplus/20181211/7763a5ea-faf2-4682-a221-35e633da547f.jpg?x-oss-process=image/resize,w_650)