Treatment for Fractured Clavicle
For displaced midshaft clavicle fractures in adults, surgical fixation with plate osteosynthesis achieves higher union rates (97.8% vs 88.9%) and better early functional outcomes compared to conservative management, though both approaches yield similar long-term satisfaction. 1
Treatment Algorithm Based on Fracture Characteristics
Minimally Displaced Fractures
- Conservative management with sling immobilization is appropriate for fractures with minimal displacement
- These fractures have low nonunion rates and heal successfully without surgery 1
- Expected union time: 4-5 weeks for midshaft fractures 2
Displaced Midshaft Fractures in Adults
Surgical indications include:
- Greater than 100% displacement
- Shortening >2 cm
- Comminuted fractures
- Fractures with significant displacement 3
Surgical benefits:
- Union rate: 97.8% (surgical) vs 88.9% (conservative) - Number Needed to Treat = 10 to prevent one nonunion 4
- Faster time to union: 16.4 weeks vs 28.4 weeks 5
- Reduced nonunion risk: 3% vs 11% 5
- Eliminates symptomatic malunion (0% vs 18% in conservative group) 5
- Faster return to work and reduced lost wages 1
Critical caveat: Long-term patient-reported outcomes and satisfaction are similar between surgical and conservative treatment 1. The functional score improvements with surgery (approximately 7-10 points on DASH/Constant scores) barely reach or fall short of the minimal clinically important difference 4.
Surgical Technique Selection
Plate fixation vs intramedullary nailing:
- Both achieve equivalent long-term outcomes with similar complication rates 1
- Plate fixation is preferred when fracture comminution is present 1
- Anterior or anterosuperior plating may reduce hardware removal rates compared to superior plating 1
- Precontoured anatomic plates have lower rates of implant removal or deformation 1
Adolescents (≤18 Years)
Conservative management is strongly preferred 1, 6
- Surgical treatment offers no benefit in union rates
- Surgery carries substantial revision surgery rates for implant removal
- Strong bone-healing capabilities make nonoperative treatment highly successful 6
- Exception: Consider adult treatment algorithms for girls >9 years and boys >12 years 3
Lateral Clavicle Fractures
Treatment depends on displacement and coracoclavicular ligament involvement:
- Nondisplaced fractures: Conservative management
- Displaced fractures with CC ligament disruption: Consider surgical fixation 7
Practical Management Details
Conservative Treatment Protocol
- Sling immobilization (preferred over figure-of-eight brace) 1
- Early mobilization as tolerated
- Expected solid union: 3-4 months 2
- Malunion occurs in 85% of conservatively treated cases but rarely causes functional impairment 2
Surgical Complications to Counsel Patients About
- Hardware irritation/prominence requiring removal (most common complication) 5
- Wound infection risk: approximately 4-5% 5
- Mechanical failure: rare 5
- Hardware removal is the leading reason for reoperation 1
Risk Factors Affecting Outcomes
Smoking increases nonunion rates and leads to inferior clinical outcomes - counsel patients on cessation 1
Modalities to Avoid
Do not use low-intensity pulsed ultrasonography (LIPUS) for acute midshaft clavicle fractures - it does not accelerate healing or reduce nonunion rates 1
Emergency Referral Criteria
Emergent orthopedic consultation required for:
- Open fractures
- Posteriorly displaced proximal fractures
- Associated neurovascular injuries 3
Urgent referral (within days) indicated for:
- Displacement >100%
- Shortening >2 cm
- Comminuted fractures
- Unstable distal fractures
- Floating shoulder 3
The Bottom Line for Clinical Decision-Making
The 2023 AAOS guidelines provide a strong recommendation that both surgical and nonsurgical treatment remain valid options because long-term outcomes are equivalent 1. However, surgery achieves approximately 10% higher union rates and faster recovery. The decision hinges on patient priorities: choose surgery for patients requiring rapid return to work/sport who accept reoperation risk for hardware removal; choose conservative management for patients willing to accept slightly higher nonunion risk (approximately 10% absolute increase) to avoid surgery and its complications.