This phenomenon exists propably as long as mankind.
1886 Richard Krafft-Ebing wrote“ Psychopathia Sexualis“, he was the first person, who wrote about devotees.
Much later (1979) there was the AMPIX Study: The Amelotatist: A Statistical Profile, Ampix Lawndale, California. 195 questionnaires were evaluated and published in AMPIX, 1978: The Amelotatist: A Statistical Profile, Copyright by AMPIX, printed in the USA
Nattress, L., Jr., Amelotasis: A Descriptive Study (second edition), unpublished doctoral dissertation, 1996
The definitions for this preference have changed in the course of time. Among them were:
„Admirers“, „collectors“, „brothers“, PAL (prefer amputee ladies) or „fans“, „hobbyists“, „amputee devotees“.
I suggest the definition „Mancophilia“ (lat. mancus = disabled, mutilated, incomplete, imperfect, weak, -philos gr. = friend); derivational homo mancus (lat.) = disabled person, as a generic term for the love for persons with a physical disability.
There are some definitions such as: „Abasiophilie“, „Amelotaphilia“, „Acrotomophilia“, „Apotemnophilia“, „Amelotasis“, „Amelotatism“, „Deformationsfetishism“, „Devotism“, „Ergophilia“, „Morphophilia“, „Hobbyism“ „Partialism“ oder „Teratophilia“,“Amelotatist“ or „AMT“.
Most oft he mancophiles seem to be attracted to persons with missing limbs.
The phenomenon is much more complex and multifaceted concerning congenitally missing limbs (e.g. amniotic-band-syndrome), amputees caused gy accident or disease, paralysations, spastics, limping, speech disorders, deafness, amblyopia,
strabismus, blindness, stuttering, etc.
Others are fascinated by aids like prostheses, ortheses, wheelchairs, crutches, leg splints, casts, corsages and even strong glasses .
In short – everything that is some form of bodily restriction – manco.
The experts are not jet sure wether mancophilia is a type of paraphilia or an unusual seldom preference.
You find a lot of information on wikidedia „Attraction to Disability“.