To explore the short-term clinical effect of lateral locking plate of humerus+autologous iliac bone graft+cortical bone plate assisted by steel cable binding fixation in the treatment of non-union of humeral fractures.

A retrospective analysis was conducted on 23 cases of postoperative nonunion of humeral fractures admitted from September 2016 to September 2020 in the bone trauma department of our hospital. 15 male patients and 8 female patients; The average age ranged from 22-65 (40.6±3.8) years. All cases of nonunion were treated with lateral locking plate of humerus, autologous iliac bone graft, and cortical bone plate assisted by steel cable binding and fixation. Shoulder and elbow function follow-up was conducted using the shoulder Neer score and the Mayo elbow function score (MEPS) system.

23 patients were followed up for an average of 12-16 (14.2±2.1) months. The imaging findings of all patients achieved bony union, and there were no abnormal changes in the limbs; The average healing time was 5-13 (7.2±1.2) months. In the last follow-up, the score of Neer's shoulder joint function was 72-96 (84.5±8.2) points, with 13 excellent, 7 good, and 3 moderate. The excellent and good rate was 86.9%; The MEPS score at the last follow-up ranged from 68-98 (86.4±9.1) points, with 15 excellent, 6 good, and 2 moderate. The excellent and good rate was 91.3%.

The treatment of nonunion of humeral fractures with lateral locking plate of humerus, autologous iliac bone graft, and cortical bone plate assisted by steel cable binding fixation can achieve initial mechanical stability and long-term biological stability of the humerus; Autologous cancellous bone can effectively induce bone formation. The combination of steel plate and bone plate increases the stability of the broken end of the humerus, achieving both mechanical and biological bone reconstruction, and greatly increasing the probability of fracture healing.