Being that she is young, she will heal quickly. I do recommend both legs at the same time. Recovery is at least 8 weeks - NO JOKE - she will need to be contained in a crate of SMALL x-pen set up. NO walking, jumping or running. Nothing but resting. You will have to help her potty. You can make a sling from a small blanket and wrap around her belly to hold her up to potty. For the first 2 weeks, she really, really must have limited to no walking. After week 2 into 3, she can walk alittle more, and you will have to exercises with her legs. By week 4 to 5, she can have a little more walking time, and such as the weeks go by. But you have to be committed for the ENTIRE recovery, b/c any wrong move from her and she can damage the legs again.
But on a good note - You are gonna be soooooooooooooooo amazed at the BRAND NEW GIRL you get after she has healed - NIGHT and DAY - You'll be so amazed at the fact that you had NO IDEA how badly she really was effected by the LP
Best of Luck and keep us posted!
My advice - ONLY have a Certified Ortho Specialist preform the surgery. They are the most experienced. Once they open the leg, it's really small in there and they may have to be 'crafty' and 'artistic' (general Vets are NOT really that qualified for this type of surgery on such tiny legs).