<prompt> Hill Sach;s lesion is most commonly seen inRecurrent shoulder dislocationPosterior shoulder dislocationFracture neck of humerusAnterior shoulder dislocation  <response>: HILL-SACH;S lesion is most commonly seen in recurent shoulder dislocation. It is a posterolateral defect in the head of the humerus.This is produced due to the impact of posterolateral pa of the head of the humerus against the sharp anteraior margion of the glenoid rim. ref:textbook of ohopedics ,john ebnezar,4th edition page no:136 