Fig. 2

Patient 9, who fell from a height of 4 m 11 years earlier, resulting in ‘left proximal humerus fracture and lumbar fracture’, received surgical treatment in the local hospital. At 8 years ago, the left shoulder had gradually become painful and weak, with limited movement of the left shoulder joint, which was untreated. a, b Preoperative X-ray shows typical synovial pseudoarticular bone nonunion and broken internal fixation; c, d Postoperative X-ray shows that the proximal end of the left humerus is well aligned and the bone graft is sufficient; e, f X-ray at 6 months after the operation shows healed fracture; g, h Although the left shoulder joint is slightly limited in movement and rotation, the patient is satisfied with the treatment results