What is the appropriate management for an acute minimally displaced non‑articular transverse fracture of the proximal base of the little finger proximal phalanx?

Management of Acute Minimally Displaced Non-Articular Transverse Fracture of Proximal Base of Little Finger Proximal Phalanx

This fracture should be treated conservatively with buddy taping to the ring finger and immediate mobilization, without the need for surgical intervention. 1

Initial Diagnostic Approach

Obtain a 3-view radiographic examination (posteroanterior, lateral, and oblique views) of the hand to confirm the fracture pattern and assess for displacement 2. An internally rotated oblique projection in addition to the standard externally rotated oblique increases diagnostic yield for phalangeal fractures 2.

Key radiographic features to evaluate:

• Degree of displacement (you specified "minimally displaced")
• Angulation (acceptable if <10 degrees) 3
• Malrotation (assess clinically by observing finger cascade in flexion)
• Articular involvement (you specified "non-articular")

Conservative Treatment Protocol

Immediate Management

Buddy taping is the treatment of choice for this injury pattern 1, 4. The evidence strongly supports this approach:

• A prospective study of 53 consecutive base fractures of the fifth proximal phalanx treated with buddy taping showed high overall satisfaction, with only 4 patients reporting mild pain 1
• All but one patient regained full flexion
• Only 2 patients had extension deficits
• No nonunion or delayed unions occurred 1
• Malrotation occurred in only 3 cases, none requiring corrective surgery 1

Specific Treatment Steps

1. Perform closed reduction if needed (though you specified minimally displaced, so this may not be necessary)
2. Apply buddy tape to the fourth digit (ring finger)
3. Allow immediate mobilization - this is critical for optimal functional outcome 1, 4
4. No rigid immobilization required for stable, minimally displaced extra-articular fractures 4

Rationale for Conservative Management

The evidence demonstrates that internal fixation often leads to decreased mobility despite exact reduction 1. The treatment philosophy should focus on function rather than anatomically perfect reduction for fifth digit base fractures 1.

A recent 2026 randomized controlled trial (the POINT trial) comparing surgery versus non-surgical splint treatment for proximal phalanx shaft fractures found:

• No clinically important difference in hand function at 6 months 5
• More complications in the surgery group 5
• Surgery was significantly more expensive with poor cost-effectiveness 5

Indications That Would Change Management

You would need to consider surgical referral if:

• Angulation >10 degrees in the coronal plane 3, 6
• Clinical malrotation persists after reduction 6
• Displacement that cannot be adequately reduced
• Instability after attempted closed reduction 7

Follow-Up

• Reassess within 1 week to ensure proper alignment is maintained 8
• Continue buddy taping for 4-6 weeks until clinical and radiographic healing 3
• Encourage early active range of motion throughout treatment 4, 7

Common Pitfalls to Avoid

• Over-treatment with rigid immobilization: This leads to stiffness and poor functional outcomes 1, 7
• Pursuing anatomic perfection surgically: The soft tissue dissection contributes to scarring and worse outcomes 7
• Delayed mobilization: Early motion is essential for maintaining tendon gliding 4, 7
• Missing malrotation: Always assess the finger cascade in flexion clinically, as this may not be apparent on radiographs 1

The evidence consistently supports that stable, extra-articular, minimally displaced fractures like yours achieve excellent functional outcomes with simple buddy taping and immediate mobilization 1, 4, 9.