I’ve had two dogs go through the op in the last year, both hyper active. As with the posters above I admit to walking them sooner and further than recommend, but I figured the vet gave ‘safe’ advice that would have some leeway.
I remember another thread on here about keeping a springer occupied without exercise and there was some good advice around trying to tire them mentally. Packing a toy or treat in a card board box, start easy, evolve onto using gaffer tape. Hide treats around the house, teach them ‘hide and seek’. Hide a chew in an old sock… There were others, can’t remember them all and no idea what or when the thread was. Sorry. Training also works, depends how sore she is, heel work in the garden etc
I feed mine on dry food, and when we just had the one I would feed her half her meal in the bowl and scatter the rest in the garden, anything just to occupy their minds for a bit.