Sorry, havent been diligent about reading site this weekend - so sorry to hear that you fell and more breaks.... that is really tough - if I'm understanding you need the weight under your arms to keep weight off your leg? This may sound silly - but would crutches with "feet" help? (I know single canes have them) - that may give you a bit more support for balance?

Be careful in any case - get help when you need to get up - and feel better