So sorry to hear that Robert, icy roads are a real nightmare luckily in our region we have since years only mild winter with very little snow. As for tendinitis for what is might help I suffer from one on teh shoulder for years (Tennis practice) and I finally got rid of it by following a treatment based on impulsion it's called "Onde de choc" I don't know if you read french but I give you a link
http://www.chirurgie-orthopedique-pa...ondes-de-choc/