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A positive result on both the Paxinos test and bone scan ruled in a diagnosis of acromioclavicular joint pain

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 Q In patients with shoulder pain (mapped within an area bounded by the midpart of the clavicle and the deltoid insertion), what is the accuracy of clinical and imaging tests for diagnosing acromioclavicular joint (ACJ) pain?

Clinical impact ratings GP/FP/Primary care ★★★★★☆☆ Surgery ★★★★★★☆

METHODS

Embedded ImageDesign:

blinded comparison of the clinical and imaging tests with results of the ACJ infiltration test as the reference standard.

Embedded ImageSetting:

a university hospital in Sydney, New South Wales, Australia.

Embedded ImagePatients:

38 patients (mean age 44 y, 58% women) who had shoulder pain that was mapped within an area bounded by the midpart of the clavicle and the deltoid insertion. Exclusion criteria included previous clavicular or ACJ surgery, clavicular fracture, previous or known allergies to lidocaine or radiopaque contrast medium, and pregnancy.

Embedded ImageDescription of tests:

clinical tests included examination (by a physician) for tenderness of the ACJ, and the Paxinos and O’Brien signs with the results declared as positive (for …

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