how to repair half eaten stems???

So right when our plant was gettin real bushy we came back to it one day and it was half eaten by what seems to be a deer. or at least we think it was a deer from the pullin up of the roots. but that was a few weeks ago and it has mostly recovered nicely except for a few main stems that were bitten off. but on the ones that were bitten off. there is an inch or so of brown stem then its green. question is should i cut off the dead brown stem or just wait longer for it to grow back. ( i thought it would grow back like the other stems but a few havent).

thanks

repair with tape and sticks