SLAP lesions 11.12.2018 Filed in: Upper Limb & Hand A SLAP ( Superior Labrum tear from Anterior to Posterior) lesion is an injury to the labrum of the shoulder. The labrum is a sleeve of connective tissue that surrounds the joint and is vital for stability of your shoulder. Read more ... Read More... Tags: shoulder injury, SLAP lesion, superior labrum tear, physiotherapy, throwing injury