When my father broke his ankle in the UK, he was given forearm crutches. I borrowed them from him when I badly injured my foot a couple years later. Haddayr has spent years telling me just how much better they are than shoulder crutches so I was an easy sell.

(She also enthusiastically recommends tornado tips for them, but that's going to be less crucial given that you're using these temporarily. She really likes the extra shock absorption those offer, though.)