Posterior Shoulder Instability

In terms of classification for posterior shoulder instability, and that wanes to know is acute versus chronic. So acute refers to trama, seizure and electric shock, which has a dramatic presentation. Chronic equals micro trama, from repetition, such as offensive football linemen, with insidious onset and presentation. Symptoms can include pain with flexion, abduction and interna rotation of the arm. For acute posterior dislocation, it may be normal from chronic posterior instability for micro trama.