Management of Acute Scaphoid Fracture in Patient on Apixaban for Upper Extremity DVT
This patient can be managed with an urgent outpatient orthopedic visit within 24-48 hours rather than requiring emergency room evaluation, provided there are no signs of compartment syndrome, neurovascular compromise, or uncontrolled bleeding. 1
Rationale for Outpatient Management
Fracture Characteristics
- Acute scaphoid fractures without displacement can be safely managed non-operatively with immobilization 2, 3, 4
- The X-ray report does not indicate displacement, instability, or other high-risk features that would necessitate immediate surgical intervention 3, 5
- Scaphoid fractures are not considered emergency surgical cases unless there is >1 mm displacement or associated complications 3, 5
Anticoagulation Considerations
- The patient is on apixaban (Eliquis) for cephalic vein thrombosis, which creates a bleeding risk but does not automatically mandate ER evaluation 1
- For urgent surgery (defined as 6-24 hours), patients on DOACs can be managed with timing strategies rather than immediate reversal if DOAC levels are <50 ng/mL 1
- Scaphoid fracture treatment typically involves immobilization first, not immediate surgery, giving time for anticoagulation management planning 2, 3
- The cephalic vein is a superficial vein, and the thrombosis indication may allow for brief interruption of anticoagulation if surgery becomes necessary 1
Immediate Actions at SNF
Clinical Assessment Required
- Evaluate for compartment syndrome: progressive pain, paresthesias, pain with passive stretch, tense forearm compartments 1
- Check neurovascular status: radial pulse, capillary refill, median/ulnar/radial nerve function 1
- Assess for active bleeding or expanding hematoma at the fracture site 1
Initial Immobilization
- Apply a thumb spica splint immediately to prevent fracture displacement and reduce pain 2, 3
- A removable splint is preferable to a cast initially, especially given anticoagulation status 1
- Position the wrist in slight volar flexion and radial deviation 5
Urgent Orthopedic Referral Protocol (Within 24-48 Hours)
Information to Provide Orthopedics
- Anticoagulation details: apixaban dose, timing of last dose, indication (cephalic vein DVT), and duration of therapy planned 1
- Fracture location on X-ray (waist, proximal pole, or distal third affects management) 2, 3
- Patient's functional status, hand dominance, and ability to comply with immobilization 4
Orthopedic Decision Points
- Non-displaced fractures: typically managed with 6-12 weeks of thumb spica cast immobilization 3, 4
- Displaced fractures (>1 mm): require surgical fixation, necessitating perioperative anticoagulation management 3, 5
- Proximal pole fractures: higher risk of avascular necrosis, may warrant earlier surgical consideration 2, 4
Anticoagulation Management Strategy
Coordination with Hematology/Thrombosis Service
- Contact the prescribing physician or thrombosis service to discuss temporary interruption if surgery is needed 1
- Apixaban has a half-life of approximately 12 hours; holding 24-48 hours before elective surgery is typically sufficient 1
- For cephalic vein thrombosis (superficial system), brief interruption carries lower risk than for deep system thrombosis 1
If Urgent Surgery Required
- Measure apixaban level if available (anti-factor Xa activity) to guide timing 1
- If level <50 ng/mL, surgery can proceed safely without reversal 1
- If level ≥50 ng/mL and surgery cannot be delayed, consider 4-factor PCC (25 units/kg) for reversal 1
- Andexanet alfa is FDA-approved for apixaban reversal but is expensive and typically reserved for life-threatening bleeding 1
Indications That Would Require ER Evaluation
Send to ER if Any of the Following Present:
- Progressive neurological deficits (median nerve compression is concerning) 1
- Signs of compartment syndrome (severe pain, tense compartments, pain with passive finger extension) 1
- Active uncontrolled bleeding or rapidly expanding hematoma 1
- Open fracture (requires urgent irrigation and debridement within 6-8 hours) 1
- Associated carpal instability on X-ray (scapholunate dissociation, lunate dorsal tilting) 5
Common Pitfalls to Avoid
- Do not delay immobilization while arranging follow-up; immediate splinting prevents displacement 2, 3
- Do not automatically discontinue apixaban without consulting the prescribing physician, as the thrombosis risk must be weighed 1
- Do not assume all scaphoid fractures need immediate surgery; most are managed conservatively initially 3, 4
- Do not use NSAIDs for pain control in a patient on anticoagulation due to additive bleeding risk; use acetaminophen or opioids if needed 1
- Ensure orthopedic follow-up is truly urgent (24-48 hours), not routine (weeks), as delayed diagnosis increases nonunion risk 2, 6