It is important for a surgeon to recognize a Hill-Sachs lesion before treating a shoulder dislocation surgically. If the fracture is large and left untreated, the repair may not be successful. Treatment for a Hill-Sachs lesion is determined by how much the humerus head has been affected: 1  Observation-is the most common and generally successful treatment, especially if less than 20% of the humeral head has been affected.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  roll call(Noun) the reading aloud of a list of names, and subsequent responses, in order to determine who is present or absent. 2  roll call(Noun) the time of day fixed for such an event. 3  roll call(Noun) such an event in a legislative body in order to determine if a quorum exists.
One of the first AD's most important responsibilities is to call the roll â that is, call out a series of specific cues for each take to ensure that all cast and crew on set are aware of exactly what is going on so they can perform their particular role at the appropriate moment.