I am sorry to hear you went down. That can hurt a lot! I went down last year when my Innova studded tires let me down after only 2.5 months of use when I had an icy ride home. Lesson learned. I will only ride on carbite tipped studded tires in Western NY from mid october till sometime near April. The tires slow me down a lot, but if it prevents me from going down... the effort is worth it. During the Fall we get lots of wet weather and leaves covering the road. On a cold fall morning you just never know how if it will be slick or not. During the Winter we get very descent plowing, but there is still plenty of frozen wet spots on the road. If I am riding and my studs go "quiet" on me, then I know I must be on a sheet of ice. Its funny how hard it can be to detect on some mornings.
Good luck and heal fast! Get some studded tires if ice is a frequent issue in your area. Sure you have to work harder, but it may be able to prevent a nasty spill in the future.
Happy riding,
André