I did ligament damage 18 months ago to my shoulder/AC joint after ploughing myself into the ground and 3 weeks ago I had a arthroscopic subacromial decompression and a tidy up of the AC joint to try to help mine. Got full movement but it’s still very sore in the AC joint at the moment. Before that I had a lot of physio but I tore mine again while at work. Luckily the consultant didn’t touch the ligaments in the operation else that would have been 2 months in a sling instead of 2 days. Still can’t drive for at least another 2 weeks and currently doing phsyio. Go back to the consultant in 3 weeks and see what he says.
Oh and the physio I first saw in A&E when I did it said he did similar and his wasn’t 100% after 12 months with lots of physio and exercise. Hope yours heals quick.