Broke tib and fib down by my ankle many years ago after a coming together with a VW Passat… 😳
Very nearly a compound fracture, but after an operation the doc's manipulated the bones into place and then i was in plaster for 12 weeks (cut down to knee after 6). About 3 weeks after the plaster came off i could put full pressure on the leg, and few more weeks back to walking properly. The physio hurt more than the break!!
Sorry if that doesnt help, but that was my experience. If you are having it pinned AFAIK it heals quicker.