You can put all the extension exercises like laterial, front and rear raise back in the closet for now.That would also include any cable movements. You want mass builders for the whole shoulder girdle so It may be best us use the serious delt builders.
Might try:
1) Military presses..bend the knee's slightly, with one foot in front of the other a little bit if overhead lift's bother you back until the back it's self grows stronger.
2) Up Right rows..may want to use a EZ bar if a regular bar bothers your wrist. Some what close grip (6-9 inches) and bring the bar up near, but not touching, the body. Pulling the bar up & away from the body can put too much stress and over extend the shoulder joints.
2-3 sets each of 6-10 reps, at least twice a week. Add weight when ever you can each workout (this is called the progressive system). Good luck.