Overview
Nonunion of a clavicle fracture refers to a fracture that fails to heal within an expected timeframe despite adequate treatment, often necessitating surgical intervention for resolution. 1Diagnosis
Clinical Presentation: Persistent pain, swelling, and deformity at the fracture site beyond typical healing time (usually 3-6 months).
Imaging: Radiographic evidence of discontinuity in bone healing, absence of callus formation, and persistent lucency on X-rays.
Grading: Nonunion classification based on location (middle third most common 1), type (atrophic or hypertrophic), and duration of nonunion status.Management
First-Line Surgical Treatments:
- Open Reduction and Internal Fixation (ORIF) with Plating: Without or with bone graft.
- Intramedullary Pin Fixation: Alternative to plating.
Adjunctive Treatments:
- Bone Grafting: Often used in conjunction with ORIF plating to enhance union.
Reoperation Rates: High union rates post-surgery (95% achieved union after primary surgery 1).Special Populations
Pregnancy: Limited data; conservative management preferred initially due to surgical risks 1.
Pediatrics: Not specifically addressed in provided abstracts.
Elderly: Considerations for surgical risks and bone quality; tailored surgical approaches may be necessary 1.
Comorbidities: Increased surgical risk; individualized treatment plans recommended based on comorbidities 1.Key Recommendations
Surgical Intervention: Consider ORIF plating with or without bone graft as primary treatment for clavicle nonunion, given high union rates 1 (Evidence: Strong).
Choice Between Plating and Intramedullary Fixation: Select based on fracture specifics and surgeon expertise, as outcomes vary but both methods show efficacy 1 (Evidence: Moderate).
Monitoring and Follow-Up: Ensure clinical follow-up of at least 2.6 years to assess long-term outcomes and complications 1 (Evidence: Moderate).References
1 Yetter T, Harper J, Weatherby PJ, Somerson JS. Complications and Outcomes After Surgical Intervention in Clavicular Nonunion: A Systematic Review. JBJS reviews 2023. link