Rates of union and risk factors for continued nonunion following exchange nailing of tibial nonunion
By
Julia C. Mastracci
Benjamin Averkamp
Matthew Braswell
Ziqing Yu
Andrew T. Chen
Roman M. Natoli
Hassan Farooq
Hassan Mir
Jessica Rivera
Rachel B. Seymour
Joseph R. Hsu
May 9, 2026
Clinical Scorecard: Union Rates and Contributing Factors for Persistent Nonunion After Tibial Exchange Nailing
At a Glance
Category Detail
Condition Tibial Nonunion Key Mechanisms Reamed tibial exchange nailing enhances rigidity, promotes vascular anastomoses, and introduces biologically active tissue. Target Population Adults aged 18 years or older with diaphyseal tibia fractures that evolved into nonunion. Care Setting Level 1 academic medical centers
Key Highlights
Nonunion rates for closed tibia fractures range from 0 to 7%; for open fractures, 8 to 32%. Union rates post-exchange nailing vary from 76% to 96% for aseptic diaphyseal fractures. High-energy mechanisms and open fractures are linked to increased nonunion rates. Patients with nonunions report higher pain levels and reduced quality of life. Guideline-Based Recommendations
Diagnosis
Classify nonunions as hypertrophic, oligotrophic, or atrophic based on radiographic findings. Management
Utilize reamed tibial exchange nailing for nonunion treatment. Monitoring & Follow-up
Follow-up with radiographs to assess union success post-exchange nailing. Risks
Consider risks of reoperation, infection, and implant failure. Patient & Prescribing Data
Patients with diaphyseal tibia fractures treated with intramedullary nailing.
Inclusion of biologics such as allografts or autografts may enhance healing.
Clinical Best Practices
Conduct thorough preoperative assessments including laboratory tests for infection. Document the choice of implant and biologic based on surgeon preference. Utilize standardized follow-up protocols for monitoring post-operative outcomes. Related Resources & Content
