Treatment of Proximal Finger Fracture
For proximal phalangeal fractures, initiate non-surgical treatment with immediate mobilization for stable fractures or those that can be reduced to acceptable alignment (≤25° sagittal angulation, ≤10° coronal angulation, no rotational deformity), while reserving surgery for unstable fractures that cannot maintain acceptable alignment. 1
Initial Assessment and Imaging
Begin with 3-view radiographs (PA, lateral, and oblique) of the affected finger 2. The internally rotated oblique projection increases diagnostic yield for phalangeal fractures beyond standard views 2.
Critical clinical examination points:
- Assess the finger in full flexion to detect rotational malalignment
- Check for scissoring of digits when making a fist
- Measure angulation in both sagittal and coronal planes
- Evaluate joint stability and tendon function
Treatment Algorithm
Non-Surgical Management (First-Line for Most Fractures)
Indications for non-surgical treatment:
- Stable fracture patterns
- Fractures reducible to acceptable alignment:
- ≤25° angulation in sagittal plane
- ≤10° angulation in coronal plane
- No uncorrectable rotational deformity 1
Treatment protocol:
- Perform closed reduction if needed (with analgesia or local anesthetic)
- Apply external splint using any appropriate technique/material
- Initiate immediate mobilization - this is critical 1
- Functional treatment allowing digit mobilization is superior to prolonged immobilization
Expected outcomes with this approach:
- Mean total active motion of 253° (SD 20)
- Median PIP joint extension of -4°
- Minimal pain at 7 weeks 1
Surgical Management
Indications for surgery:
- Unstable fractures that cannot maintain acceptable alignment after closed reduction
- Intra-articular fractures with >2mm step-off
- Open fractures
- Fractures with associated tendon injuries requiring fixation 2
Important caveat: The 2026 POINT trial 3 found that surgery does not restore better hand function than non-surgical treatment at 6 months, results in more complications, and is significantly more expensive (£39,686 per QALY). This reinforces that surgery should be reserved only for truly unstable patterns.
Surgical technique when indicated:
- Closed reduction with K-wire fixation is most common (69% of operative cases) 4
- Minimize soft tissue dissection to reduce scarring
- Goal is anatomic restoration with enough stability for early active motion 5
Common Pitfalls
Avoid over-immobilization: Recent evidence shows 72-94% of similar injuries are successfully managed with functional treatment allowing immediate mobilization 4. Prolonged immobilization leads to stiffness and worse outcomes.
Don't miss rotational malalignment: This is the most critical parameter. Even minimal rotation compounds distally - always examine the finger in flexion with all digits flexed together.
Beware of practice variation: There is significant variation in treatment approaches across institutions 4, but the evidence supports functional treatment with early mobilization for most fractures 1, 3.
Follow-Up
Arrange hand specialist follow-up within 1 week of injury to ensure proper fracture alignment is maintained and adjust treatment if needed 6. If initial radiographs are equivocal, repeat radiographs at 10-14 days or consider CT without contrast 2.