Dislocating your shoulder after falling is common. But regaining strength isn’t so easy
The rotator cuff tendon is formed by four muscles that let you elevate and rotate the shoulder. They converge to form a tendon that attaches to the ball part of the shoulder. If a large tear occurs acutely from a fall, the shoulder can not only be unstable but have significant weakness due to the rotator cuff tendon tear.
Source: Miami Herald