Factors related to large bone defects of bipolar lesions and a high number of instability episodes with anterior glenohumeral instability

摘要

Identification of glenoid bone defects. a Three-dimensional surface model of the right glenoid (involved side) is reconstructed from the obtained computed tomography data. b The mirrored surface data of the left glenoid (intact side) is matched to the right glenoid model using the posterior half of the glenoid. c The bone defect area (black) is identified with subtraction of the affected-side volume from the intact side