"Dr Dittmar said modern research associates the deformity with balance issues.
"This would explain the higher number of healed, broken bones we found in medieval skeletons with this condition," she added."
I'd have thought more likely that wealthier folk who wore fashionable pointy shoes could also afford to ride horses, falling off of which probably caused a large proportion of the broken bones.
Having actually studied and practised podiatry at one time, I do get frustrated that in 2021 when we have iPhones and Amazon and Chinese robots on Mars, it's still difficult to find practical well-fitting shoes if your feet are even slightly unusually shaped. Most of the problems that podiatrists deal with are actually caused by shoes, and yet when the TUC (Trades Union Congress) had a campaign against employers who forced female staff to wear uncomfortable and damaging shoes they were ridiculed as fanatic feminist killjoys who did not want women to look attractive.