Ac Joint X Ray Normal

The acromioclavicular ac joint radiographic series is used to evaluate the acromioclavicular joint and the distal clavicle.

Ac joint x ray normal. The primary reason to make a shoulder x ray is to confirm or exclude the presence of a fracture. The acromioclavicular joint can be assessed with standard shoulder x rays. Normal measurements do not rule out pathology and must be considered in the context of other findings and the clinical presentation. May be the only finding in type i injuries.

Oppenheimer 1943 and zanca 1971 suggest the limits of the acromioclavicular joint space in a healthy shoulder to vary between 1 and 3 mm but. Widening of the acromioclavicular joint normal. If the joint is normal then acromioclavicular alignment should remain normal and symmetric. Normal radiographic measurements of the shoulder are important in evaluation of the osseous relationships in plain film radiography.

Inferior plane of the distal clavicle should be on same plane as inferior border of. 5 8 mm narrower in the elderly. Frontal normal acromioclavicular joint. 3 article feature images from this case.

Ac joint space is usually 5mm. Additionally the image can provide information on the position of the shoulder joint any bone abnormalities including bone tumors and soft tissue disorders think of calcifications in the rotator cuff muscles. Rockwood classification of acromioclavicular joint injury. Ac radiographs are performed for a variety of indications including.

Due to normal appearing x ray you diagnose the patient with a grade ii ac joint separation due to the clavicle mobility on exam. Loss of alignment of the inferior surfaces of the clavicle and acromion indicates disruption of the acromioclavicular ligaments at the acromioclavicular joint acj. X ray frontal used in the following article. Coracoclavicular distance usually 11 13 mm.

50 difference in size between the two shoulders is considered significant. Depalma 1957 found narrowing of the ac romioclavicular joint space in increasing fre quency with age but did not examine the normal limits of the normal joint s pace in different ages. Case contributed by assoc prof frank gaillard diagnosis not applicable diagnosis not applicable. The patient is provided analgesia and placed in a sling for comfort.

5 8 mm narrower in the elderly. Features of acromioclavicular joint injury include 6. Minor ligamentous disruption may not be detectable on a plain radiograph as alignment is not lost. Direct blows to the shoulder region.