Treatment and Management of Fractured Finger
For an adult with a fractured finger, initiate immediate buddy splinting for stable, minimally displaced fractures (angulation <10 degrees) and begin active range-of-motion exercises of uninjured joints within 3 days to prevent stiffness, while referring unstable fractures with significant angulation (>10 degrees), displacement, malrotation, or intra-articular involvement to an orthopedic or hand surgeon. 1
Initial Assessment and Imaging
- Obtain three standard radiographic views: anteroposterior, lateral, and oblique projections to characterize the fracture pattern, displacement, and angulation 2, 1
- Assess specifically for rotational malposition (check finger alignment when making a fist), angulation degree, displacement, and intra-articular extension 1, 3
- Provide multimodal analgesia immediately, including acetaminophen while avoiding NSAIDs in elderly patients 4
Fracture-Specific Management
Distal Phalanx Fractures
- Uncomplicated crush injuries: Splint the distal interphalangeal (DIP) joint for 4-6 weeks 1
- Dorsal avulsion fractures (mallet finger): Require strict continuous splint immobilization for 8 weeks without any interruption 1
- Flexor digitorum profundus avulsion fractures: Refer immediately for surgical evaluation as these typically require operative repair 1
Middle and Proximal Phalanx Fractures
- Minimal angulation (<10 degrees): Treat with buddy splinting to adjacent finger 1
- Angulation >10 degrees, any displacement, or malrotation: Refer for reduction or surgical fixation 1, 3
- Multiple fractures per finger: Refer for specialist evaluation as these significantly decrease final range of motion 5
Critical Early Mobilization Protocol
Begin active finger motion exercises of all uninjured joints within 3 days of injury to prevent debilitating stiffness. 6, 5
- Start range-of-motion exercises for joints proximal and distal to the immobilized fracture site immediately 6, 4
- Finger stiffness is one of the most functionally disabling complications and becomes extremely difficult to treat after fracture healing 6
- Associated crush injuries, tendon injuries, or skin loss significantly increase risk of stiffness in both fractured and unfractured fingers 5
- Never immobilize a finger fracture for more than one month 3
Indications for Immediate Orthopedic Referral
- Irreducible dislocations 2
- Unstable fractures that cannot maintain reduction 2, 1
- Any rotational deformity (check by having patient make a fist—all fingers should point toward scaphoid) 1, 3
- Open fractures 3
- Intra-articular fractures with displacement 1
- Volar proximal interphalangeal (PIP) joint dislocations 1
- Volar metacarpophalangeal (MCP) joint dislocations 1
Special Considerations for Elderly Patients
In patients over 50 years, a finger fracture may represent an underlying fragility fracture requiring comprehensive osteoporosis evaluation and treatment. 6, 4
- Order vitamin D, calcium, and parathyroid hormone levels at initial visit 4
- Schedule outpatient DEXA scan and refer to bone health clinic 4
- Consider initiating anti-osteoporotic therapy even before DEXA results in patients with typical fragility fracture patterns 4, 7
- Implement orthogeriatric co-management for frail elderly patients with multiple comorbidities 6, 4
- Implement fall prevention programs including balance training to prevent subsequent fractures 6, 4
Common Pitfalls to Avoid
- Do not ignore uninjured fingers: Instruct aggressive finger motion exercises for all non-immobilized digits from day one, as stiffness can develop in unfractured fingers, especially with associated crush injuries 6, 5
- Do not treat as isolated injury in elderly: Failure to address underlying osteoporosis leaves patients at increased risk of subsequent hip or vertebral fractures 4
- Do not miss rotational deformity: Even minimal rotation causes significant functional impairment and requires surgical correction 1, 3
- Do not over-immobilize: Prolonged immobilization beyond 4 weeks causes permanent stiffness 3
Follow-Up Protocol
- Reassess at 1 week for any loss of reduction or development of complications 1
- Monitor for unremitting pain during follow-up, which warrants reevaluation for complications 6
- Continue buddy taping for 2-3 weeks after splint removal to protect healing structures 1
- In elderly patients, ensure systematic follow-up for osteoporosis treatment adherence 4