Role of MR arthrography in shoulder micro-instability: personal experience.

Muscle lesions, a frequent event in sport, often cause hematomas. In fact, both in the traumatic direct injuries, as in American football, and in the traumatic indirect ones, as in strength sports, lesions interesting leg's Muscles Cause intra- and extramuscular hematomas. A diagnosis in a short time, allow LIS to evaluate the lesion rank and plan a surgery approach. Authors present high resolution Ultrasound (HRSU) as a new diagnostic method for this kind of lesion. It allows us to confirm clinic diagnosis, define the lesion's areas and follow-up. Moreover, HRSU has all important role in therapy, promoting in real time the blood's aspiration from lesion's area. Three phases after trauma, destruction, reparation and remodelling, represent three particular moments corresponding to hematoma's formation, fagocitosis, and regeneration of fibres with the final Solution of reorganization and reabsorption of scars. Authors present their cases of sportsmen Submitted to HRSU of hematic effusion interposed in the lesion and following aspiration that, in the light of the results obtained, is the most appropriate method for functionality recovery time reduction and return to competitions.