• Feb 12, 2026 koval handbook of fractures 5th edition s. AO/OTA Classification: Detailed descriptions for long bone fractures. Lauge-Hansen and Danis-Weber: For ankle fractures. Neer and Hawkins: For proximal humerus and shoulder fractures. Specialized Classifications: For pelvis, acetabulum, and intra-articul By Cory Denesik DDS