What is the appropriate non‑operative management for an oblique, nondisplaced fracture of the proximal phalanx of the ring finger in a 12‑year‑old?

Non-Operative Management with Buddy Taping and Short-Term Immobilization

For a nondisplaced oblique fracture of the proximal phalanx in a 12-year-old, immobilize the ring finger with buddy taping to the adjacent finger for 3-4 weeks, allowing early protected motion. This approach achieves excellent functional outcomes without surgery in pediatric patients 1, 2.

Treatment Protocol

Immediate Management

• Buddy tape the ring finger to the middle finger using soft padding between digits
• Apply a removable protective splint (aluminum foam or thermoplastic) for the first 1-2 weeks if needed for comfort
• No rigid casting is required for nondisplaced fractures 3

Duration and Monitoring

• Continue buddy taping for 3-4 weeks total 2
• Clinical follow-up at 1 week to confirm maintained alignment 4
• Repeat radiographs at 1-2 weeks to ensure no displacement has occurred
• Final radiographs at 3-4 weeks to confirm healing

Key Clinical Reasoning

Why Non-Operative Treatment Works

The most recent large pediatric study of 634 proximal phalanx fractures demonstrated that extra-articular juxtaphyseal fractures rarely require surgery and can be treated with or without closed reduction based on initial alignment 1. In that cohort, rotational malalignment occurred in only 0.93% of cases managed non-operatively, with excellent functional outcomes.

Acceptable Alignment Parameters

For pediatric proximal phalanx fractures 1, 5:

• Coronal angulation ≤10° is acceptable and will remodel
• No clinical rotational deformity (check digital cascade with finger flexion)
• Nondisplaced fractures maintain alignment with simple immobilization

Advantages of Early Functional Treatment

A 2021 pediatric case series showed that dynamic splinting with early protected motion resulted in 3:

• Mean fingertip-to-palm distance of only 0.17 cm at endpoint
• Pain-free motion by 14 days on average
• No clinically apparent bony deformities
• Faster restoration of hand function compared to rigid immobilization

Critical Pitfalls to Avoid

Check for Rotational Malalignment

• Examine the digital cascade with the hand in flexion before and after splinting
• All fingertips should point toward the scaphoid tubercle
• Any scissoring or overlap indicates malrotation requiring reduction 2

Monitor for Loss of Reduction

• Oblique fractures can be inherently unstable
• If >10° coronal angulation or any rotational deformity develops on follow-up radiographs, proceed to closed reduction and percutaneous pinning 5

Avoid Over-Immobilization

• Prolonged rigid immobilization causes stiffness and tendon adhesions
• The pediatric hand tolerates early protected motion well
• Buddy taping allows controlled motion while protecting against displacement 3

When Surgery Would Be Indicated

Surgical intervention (closed reduction and K-wire fixation) is warranted if 2, 5:

• >10° of coronal angulation persists after closed reduction
• Clinical malrotation that cannot be corrected
• Displacement develops during non-operative treatment
• Intra-articular extension (not present in this case)

Expected Outcomes

With appropriate non-operative management, expect 1, 3:

• Fracture union by 3-4 weeks
• Full range of motion within 2 weeks of splint removal
• Excellent functional outcomes with minimal complications
• Remodeling potential is robust in this age group

The 12-year-old age provides excellent remodeling capacity, making non-operative treatment highly successful for nondisplaced fractures even with oblique patterns 1.