[Use of arthrosonography in the diagnosis of Tossy injuries of the shoulder joint].

In a pilot study specificity and sensibility of ultrasonics on Tossy III lesions were tested, and that in 20 cases of guaranteed intact acromioclavicular joints and 22 cases of radiologically diagnosed Tossy III lesions with a following operative control. Additionally in these 22 cases the contralateral acromioclavicular joints were also examined by ultrasonics. All examinations were registered on video tape. With it in a single blind test the exact diagnosis was made in all cases. The diagnosis was based on ultrasonic findings as visible instability, unevenness of the joint line, haematoma formation with ligament stumps. Compared to radiologic diagnostics ultrasonics do not demand cooperative patients or special postures for the examination. A proved accuracy in the diagnosis and the capability of further extension of this technique are of clinical importance. A differentiation of various grades of Tossy lesions is possible.