DP doesn't matter a lot (at foot level)... you can tie it off (or repair it if able). We all bag the plantar communicating branch a good amount of the time on Lapidus... ppl using a tourniquet and/or using jig probably just don't even know it. The only pts that bagging the DP would really hurt are pretty severe PT and overall PAD stenosis where you definitely wouldn't be doing elective anyways. It could sure give trouble for wound healing on forefoot slams/recons; heck, I kinda assume it was bagged when doing revision midfoot/forefoot stuff.
PT you have to repair, yeah... 5-0 nylon or prolene (not cutting needle). If you have vascular, call em... but in reality, most of us won't have them in the building or even the city/town. If PT is damaged, it almost surely won't be with scalpel nick or something fairly easily repairable. In 99+% of normal pod situations, you shouldn't be nearer than 1cm to those AT, PT, sural, pero neurovasc stuff. The PT really just comes into play in some ankle fusions or fractures (for screws/pins), and it'd be torn to shreds if you drilled or put a wire or saw on it. It'll be beyond repair. If anyone manages to bag PT nerve or artery with saw or osteotome or drill on calc osteotomies or FHL xfers or stuff, then that's pretty much a manufactured crisis. But don't get me wrong... I do tell techs, "it's real important you hold that army navy right there to protect" when I do TA tendon, anterior ankle approach, FHL stuff, deltoid, Achilles, etc. 🙂
The only ppl I know personally who hit the PT a good bit are doing pointless Charcot recons (for rvu, for resident cases, whatever) with rly sloppy and over-fixated fusions... the hopeless stuff I and any normal doc will just cast or CROW or TCC until they get their amp. In normal pod practice, serious chance of hitting PT's really not an issue (aside from just being aware of PT when doing lateral calc stuff like osteotomies, calc ORIF, nails, etc).
The proper "tarsal tunnel surgery" (barely ever necessary, but occasional need for a ganglion or varicose or SOL) is just to dissect down, cut the lacinate carefully, sew skin only. You don't want to touch the nerve or artery. Those ppl who try to separate everything, loop the nerve branches, over-dissect, etc usually cause way more harm than good.