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.
roll verb (TURN OVER). B1 [T usually + adv/prep] to (âcause something to) âturn over onto itself to âform the âshape of a âball or a âtube: He rolled the âclay into a âball in his âhands. As I got âcloser, the âhedgehog rolled itself (up) into a âball.oll noun (TUBE). B2 [C] a âpiece of âfilm, âpaper, or âcloth that is rolled into the âshape of a âtube: a roll of âcarpet a âtoilet roll (= a roll of âtoilet âpaper) âº [C] If a âperson or âanimal has rolls of âfat on âtheir âbody, he, she, or it is very âfat: The âdog had rolls of âfat along âits âneck.