Timeline of changes in your body - 2 months after surgery
A few months after the surgery is when good things will start to happen. So slowly that will be difficult to appreciate, but they are happening. From this moment onward, you will start to notice that some of your atrophied muscles are slowly becoming less bony. This doesn't mean that the muscle is back at this point, but just a tiny bit. Nerve pain might be still at its peak. This could last for a while. Around this time you will start to observe small contractions when activating the innervating nerves for the elbow flexion. For example, with Oberlin transfer, making a fist will cause some feeling around the biceps. Those sensations will soon become small but visible contractions. From there, you will observe small movements but don't expect any anti gravitational force on elbow flexion anytime before 4 months after the surgery. Depending on what transfer was done for your supraspinatus, it is possible that you will observe changes there a few weeks or months after this point.