Bone Discontinuities of Dry Bones – Humerus Dry Bone Discontinuities The most common bone discontinuities of dry bones are tibial discontinuities, followed by femoral discontinuities, humeral discontinuities, ulnar-radial discontinuities of the forearm, and less commonly, clavicular discontinuities. In this series of articles, I explain the treatment of osteochondromas through some cases. Case , Humerus Stem Osteogenesis Imperfecta: The patient is a male, 52 years old, postoperative right humerus fracture. This patient had a very complicated humeral diastasis, which had been operated on three times locally, and three times the diastasis occurred. First postoperative osteochondral nonunion Second postoperative osteochondral nonunion Third postoperative osteochondral nonunion Difficulty: three repeated surgeries, very poor local soft tissue conditions; after three surgeries, the location of radial nerve structures are not clear and easy to damage; three surgeries were accompanied by wasting osteoporosis, insufficient bone mass, and poor local healing ability. Difficulty level: Grade III Surgical treatment: The surgical approach was made through the original surgical scar, the radial nerve was separated and protected, the original failed internal fixation was removed, the dead bone and necrotic tissue at the broken end were clarified, a large bone defect was found, and osteoporosis was found, and strong fixation was made using a double-plate with a large amount of bone grafting combined with structural grafting. On follow-up, the fracture healed well and the joint moved freely.