Also, she wore a top full denture. Source:
https://www.namus.gov/api/CaseSets/NamUs/UnidentifiedPersons/Cases/7792/Images/29101/Original
The crutches belonging to her along with the top denture don't shock me. It suggests to me that UID has health issues with teeth, which can be connected with joint issues.
My first though is a rare disease called
Ehlers–Danlos syndromes - Wikipedia
I'm not a doctor, but from what I found on Wikipedia is that osteoarthritis and joint dislocation are possible complications.
Patients with EDS
may need crutches, even a wheelchair, and needing dentures because of digestive complications (gastroparesis is a possible one, watched a patient's video affected by EDS digestive & joint complications to the point she is fed by TPN, Total Parenteral Nutrition. She also needs to catheterise herself for urinating, mind you! I don't know if such YT link is allowed, so will ask to staff right away).
Also, in the "Management" paragraph on the same Wikipedia page:
IMHO, we can not exclude a systemic illness without a proper diagnosis, as precise as we can have now. EHD genetic diagnosis was available only after 1997 (source: Wikipedia).
So, when looking at MP reports of the era, do not expect to find "Ehlers-Danlos syndrome" in the report!
Because it's very unlikely reported under such name in the "Medical" paragraph.
ETA: I am a patient classified as having a rare disease per my doctors, which explains why I focus a lot on details leading to the rare possibility.
If it's right, great.
If it's wrong, it's ok because we have closed a doubt.