Newborn calf has back leg problems

[JD88]

So we had a heifer calf last night the calf didn't get up so we finally got her up but she wouldn't keep her backlegs under her so we milked the cow and bottle fed her and today she gets up but is still pretty shaky but is slowly getting around but wont put much weight on her left leg and it seems not to have much muscle to it. It looks to be more up in her hip And now she is nursing on her own and seems to have Good energy any thoughts on if she will get better