What is the appropriate management for a closed finger fracture in an otherwise healthy adult?

Management of a Broken Finger

For a closed finger fracture in a healthy adult, obtain a standard 3-view radiograph (PA, lateral, and oblique) and treat most fractures non-operatively with buddy taping and early mobilization, reserving surgery only for unstable fractures with significant angulation (>10 degrees), displacement, malrotation, or intra-articular involvement. 1, 2

Initial Diagnostic Approach

Imaging is essential and must be adequate:

• A 3-view radiographic examination is mandatory—2 views alone miss too many fractures 1
• Standard views include posteroanterior (PA), lateral, and oblique projections
• An internally rotated oblique view in addition to the standard externally rotated oblique increases detection of phalangeal fractures 1

Treatment Algorithm Based on Fracture Characteristics

Non-Operative Management (86% of adult finger fractures) 3

Indications for conservative treatment:

• Stable, extra-articular fractures 4
• Minimal angulation (<10 degrees) 2
• No malrotation
• No significant displacement

Treatment protocol:

• Buddy taping to adjacent finger 2, 5
• Immobilize only until fracture is stable in motion—often immediately possible 5
• Critical pitfall: Never immobilize for more than one month 5
• Begin early active mobilization to prevent stiffness and optimize functional outcome 4

Specific Fracture Types Requiring Tailored Approaches

Distal phalanx fractures (crush injuries):

• Splint the distal interphalangeal (DIP) joint for 4-6 weeks 2
• Most common in the 4th finger 3

Mallet finger (dorsal avulsion fractures):

• Requires strict DIP joint splint immobilization for 8 weeks 2
• Caused by forced flexion against resistance
• If >1/3 of articular surface involved, palmar displacement present, or interfragmentary gap >3mm → surgical referral 1

Middle and proximal phalanx fractures:

• Buddy splinting if angulation <10 degrees 2
• Proximal phalanx fractures have higher reoperation rates and worse outcomes 6

Operative Indications (Require Orthopedic/Hand Surgery Referral)

Absolute surgical indications:

• Angulation ≥10 degrees 2
• Significant displacement 2
• Malrotation (check by having patient make a fist—all fingers should point toward scaphoid) 2
• Unstable extra-articular fractures 4
• Most intra-articular fractures 4
• Open fractures 5
• Flexor digitorum profundus avulsion fractures 2
• Volar proximal interphalangeal (PIP) joint dislocations 2

Critical Pitfalls to Avoid

1. Inadequate radiographs: Two views are insufficient—always obtain 3 views 1
2. Over-immobilization: Prolonged immobilization beyond 4 weeks causes permanent stiffness 5
3. Missing rotational deformity: Always assess finger cascade alignment
4. Delayed mobilization: Early active movement is essential for optimal function 4
5. Underestimating crush injuries: These have higher reoperation rates and infection risk 6

Special Considerations

Thumb fractures have better outcomes with lower reoperation rates compared to other digits 6. Most are visible on 2-view radiographs, though an oblique view increases diagnostic yield 1.

Crush injuries and proximal phalanx fractures warrant closer follow-up as they're associated with higher rates of postoperative infection, nonunion, and need for secondary surgery 6.

The evidence strongly supports that finger fractures generally do not affect long-term hand function or quality of life when appropriately managed, with no significant differences in patient-reported outcomes between operative and non-operative treatment for appropriate indications 3.