Hi Sioux,
Sorry to hear about your injury. When a person is recovering from any kind of health problem the first thing you must focus on is healing. Before you concern yourself with getting back to normal activity, be sure your doctor agrees with everything you're doing.
Recently, I posted an article about shoulder stretches you may find helpful. This is part of a complete set of body stretching articles that will be finished within the next few weeks. You may want to start with the Neck/Head stretches and simply work you way down.
Your mind should be on sending healing energy to your shoulder and using the parts of your body that are stronger to get as far into any pose as you comfortably can go. Never over-extend yourself or cause yourself pain.
Here's the link:
Shoulder Stretches For the rest of my stretching articles:
Yoga Stretches Good luck to you!
Nancy Welker
BellaOnline Yoga Editor