Ac Joint Normal Width
Comparison to opposite cc joint space is more important increase in cc distance of 25 50 indicates complete cc ligament disruption.
Ac joint normal width. 5 8 mm narrower in the elderly. The ac gap is 5 mm. Grades i and ii never require surgery and heal by themselves though physical therapy may be required. 5 8 mm narrower in the elderly.
Cc joint normal distance is 11 13mm. Right and left differ by no more than 2 3 mm. Grade ii is a partial dislocation of the ac joint with a complete disruption tear of the ac joint and a partial disruption of coracoclavicular ligament. Coracoclavicular distance usually 11 13 mm.
Normal radiographic measurements of the shoulder are important in evaluation of the osseous relationships in plain film radiography. Sonographic evaluation of normal acromioclavicular joint width capsule thickness at rest and with stress maneuvers an oral abstract presented by ida teberian md. Ac joint space is usually 5mm. Right and left should differ by 5 mm.
If the joint is normal then acromioclavicular alignment should remain normal and symmetric. Features of acromioclavicular joint injury include 6. By age 60 width is often less than 1mm. Normal measurements do not rule out pathology and must be considered in the context of other findings and the clinical presentation.
Widening of the acromioclavicular joint normal. Children and adolescents have a slightly wider joint space. Ac joint normal width of ac joint in adults is 1 3mm. 50 difference in size between the two shoulders is considered significant.