rehabbing shoulder injury

[Oscar]

this past august I was hit by a truck on my bike tore the ligaments connecting the acromion to the clavicle and the clavicle to the scapula its kind of healed up but my left shoulder is significantly weaker than my right and my arm hangs down noticeably lower. Don't have access to a real gym right now as I'm in an inpatient treatment facility but we've got an exercise room with a couple old universal machines. should I continue just doing upper body workouts with my right side or is there something I can do to rehab my left shoulder without surgery?

 

[Epolis13]

Do you have the ability to go to a physical therapist? I would go to a PT to get a rehab program tailored to your condition.