Honestly I wouldn't even hand walk her I think that is going to be counter productive. EPMHorse had lots of good ideas... just don't do them all at once.. rotate them so she doesn't get use to it and become bored.
I would talk to your vet about giving her daily shots of banamine...since it is not as harsh as bute on their stomach. Also if she starts to pace... ask your vet about keeping her mildly sedated for the first x amount of time.. She really shouldn't be moving on that foot for a while.
We had a friesian mare who had bone spurs in her stifle and she had done something that damaged that ligament even more so she needed to be on complete stall rest for 8 weeks minimum. The vet advised to keep her mildly sedated to keep her from further damaging anything while in the stall.