Paralabial Cyst and Microinstabily: A Case Report

Gleno-humeral joint instability has been traditionally divided in two categories: TUBS (traumatic unidirectional Bankart lesion, responds to surgery) and AMBRII (atraumatic, multidirectional, bilateral, responds to rehabilitation, inferior capsular shift, and interval closure). In patients with TUBS, the common imaging finding are Bankart lesion, Hill-Sachs lesion; in AMBRI, there is no evident structural lesions. This classification is still noteworthy, however micro instabilities, common in overhead athletes or patients who return to sport after a period of standstill, cannot be classified strictly as one of these categories. For this reason, classifications have been uploaded with further two groups regarding instabilities: AIOS (acquired instability in overstressed shoulder, surgery) and AMSI (Atraumatic minor shoulder instability) [1].

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