Autologous Nonvascularized Fibula Graft and Locking Compression Plating for Failed Fixation of Humeral Shaft With Atrophic Gap Nonunion.

Introduction The surgical treatment of humeral shaft atrophic, gap nonunion following failed surgical fixation is challenging. We intended to evaluate the surgical outcome of failed fixation of humeral shaft atrophic, gap nonunions using locking compression plate (LCP) and autologous nonvascularized fibular graft (ANVFG) and autologous iliac crest bone graft (AICBG).   Methods Through our database search between 2015 and 2018, we identified 12 patients with humeral shaft atrophic, gap nonunions with failed surgical fixation underwent open reduction and internal fixation using LCP with autologous fibula graft and iliac crest cancellous bone graft.   Results We have followed all twelve patients for a minimum period of 24 months. All patients had radiological and clinical union with a mean time to union of 17 weeks. In one case superficial surgical site infection was noted and successfully treated with intravenous antibiotics, and in another, transient peroneal nerve palsy was identified and resolved in six months.   Conclusion LCP with ANVFG and AICBG is a reliable option for "complex" diaphyseal humerus atrophic and gap non unions, especially with significant bone loss. This construct provides mechanical stability and supports biological healing in these complex fractures.