Clinical application of TriGen interlocking intramedullary nail combined with suture anchor in the treatment of Neer type III and IV proximal humeral fractures

Objective To analyze the clinical efficacy of TriGen interlocking intramedullary nail combined with suture anchor in the treatment of Neer typeⅢ andⅣ proximal humeral varus fractures. Methods From June 2015 to June 2017, 23 patients with proximal humeral varus fractures of Neer type Ⅲ and Ⅳ were treated with TriGen interlocking intramedullary nail combined with suture anchor technique, including 15 cases of Neer type Ⅲ and 8 cases of Neer type Ⅳ. The fracture healing time was followed up. The range of motion of shoulder joint was measured one year after operation. American Shoulder and Elbow Surgeons (ASES) score, Constant-Murley score and visual analogue scale (VAS) were performed. Results All the patients were follow-up for 12 to 16 months, with an average of 14 months. All fractures healed 2 to 4 months after operation, with an average of 3 months. No complications such as wound infection, rotator cuff injury and axillary nerve injury occurred. The ASES score, Constant-Murley score and VAS were (91.00±3.04), (90.00±3.21) and (0.42±0.38) respectively. Conclusion For Neer type Ⅲ and Ⅳ complex proximal humerus varus fractures, TriGen interlocking intramedullary nail combined with suture anchor technique is used to treat it, which increases the strength of fixing the humeral nodules, conforms to the concept of overall fixation, is conducive to early functional rehabilitation, and achieves good results after operation. It is a reliable minimally invasive treatment method. Key words: Humeral fractures; Surgical procedures, operative; Proximal; Intramedullary nail; Anchor