Lawrenceburg, Kentucky. Lawrenceburg is a home rule-class city in Anderson County, Kentucky, United States. The population was 10,505 at the 2010 census. It is the seat of its county. Lawrenceburg is part of the Frankfort, Kentucky, micropolitan statistical area.
Vacuum phenomenon in the shoulder refers to the presence of intra-articular gas in the shoulder joint.t is a very common occurrence, particularly in external rotation. This can cause circular or linear areas of low signal intensity on GRE MR images of the shoulder obtained with external rotation of the arm and represent small foci of intra-articular gas.
Introduction. The presence of gaseous collections within a joint space is known as the vacuum phenomenon (VP). VP is often seen in intervertebral discs and sacroiliac joints. Studies dealing with the sacroiliac joint are uncommonly found in the literature [1] , [2] and [3] , and most of these studies are not recent.acuum phenomenon (VP) is commonly found in sacroiliac joints, and its significance in patients with back pain has been debated.