From: Current concepts in locking plate fixation of proximal humerus fractures
Predictors of posttraumatic humeral head ischemia | Â |
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 • Metaphyseal extension < 8 mm  • Disrupted medial hinge  • Basic fracture morphology  • Head-split component (> 20% head involvement)  • Angular head displacement > 45°  • Tuberosity displacement > 10 mm  • Glenohumeral dislocation |  |