What is the appropriate management for a patient with a broken toe, especially considering potential complications and pre-existing medical conditions like diabetes?

Management of a Broken Toe

For most patients with a broken toe, treatment consists of buddy taping to an adjacent toe and wearing a rigid-sole shoe for 4-6 weeks, with immediate weight-bearing as tolerated; however, patients with diabetes require heightened vigilance for complications and may need specialized footwear or offloading devices. 1, 2

Initial Evaluation and Imaging

When a toe fracture is suspected, obtain anteroposterior and oblique radiographs to identify the fracture, assess displacement, and evaluate adjacent structures. 1 Weight-bearing views should be included when possible to better assess alignment. 3, 2

Important caveat: Do not apply the Ottawa rules in patients with diabetic neuropathy, as pain perception may be diminished and patients may ambulate despite significant fractures. 3 These patients should be radiographed regardless of clinical findings.

Standard Management for Non-Diabetic Patients

Lesser Toe Fractures (Toes 2-5)

• Stable, nondisplaced fractures: Buddy tape to adjacent toe and use rigid-sole shoe for 4-6 weeks 1, 2, 4
• Displaced fractures: Perform closed reduction, then buddy tape and rigid-sole shoe 1
• Weight-bearing is permitted as tolerated based on pain level 2

Great Toe (Hallux) Fractures

The great toe requires more aggressive management due to its critical role in weight-bearing. 2, 5

• Nondisplaced fractures: Short leg walking boot or cast with toe plate for 2-3 weeks, followed by rigid-sole shoe for additional 3-4 weeks 4
• Displaced fractures or those involving >25% of joint surface: Require orthopedic referral for stabilization 1
• Unstable fractures: Require orthopedic referral 1

Critical Management Considerations for Diabetic Patients

Patients with diabetes and a broken toe face substantially higher risks and require modified management protocols. 6, 7, 8

Key Risk Factors in Diabetic Patients

• Loss of protective sensation (LOPS) from neuropathy prevents normal pain response 7, 8
• Peripheral arterial disease (PAD) impairs healing 8
• Higher risk of infection, including osteomyelitis 6, 9, 8
• Risk of Charcot neuroarthropathy if fracture not properly immobilized 10

Enhanced Assessment Required

Perform comprehensive vascular assessment including:

• Palpation of pedal pulses 7
• Ankle-brachial index (ABI) and toe pressures 8
• If ABI <0.5 or ankle pressure <50 mmHg, consider urgent vascular imaging and revascularization 8

Assess for neuropathy using 10-g monofilament testing plus at least one additional test (pinprick, vibration with 128-Hz tuning fork, or ankle reflexes). 7

Modified Treatment Protocol for Diabetic Patients

For diabetic patients with toe fractures and intact skin:

• Consider non-removable knee-high offloading device (total contact cast or irremovable walker) to prevent progression to Charcot neuroarthropathy 10
• If non-removable device contraindicated, use removable knee-high device worn at all times 10
• Custom therapeutic footwear may be required after initial healing to accommodate deformities and prevent ulceration 7, 8

Critical warning: Patients with diabetes and neuropathy may continue walking on fractured toes without pain, leading to progressive deformity, Charcot arthropathy, or skin breakdown. 3, 10

Infection Surveillance

Monitor closely for signs of infection, which may be subtle in diabetic patients:

• Look for at least two signs of inflammation: redness, warmth, induration, pain/tenderness, or purulent secretions 8
• Systemic signs (fever, elevated WBC) are often absent 8
• If infection develops, classify as mild (superficial), moderate (deeper), or severe (systemic sepsis) 8

For moderate or severe infections: Obtain urgent surgical consultation within 24-48 hours for debridement combined with antibiotics. 6

Osteomyelitis Risk

Assess for osteomyelitis if:

• Wound is longstanding or deep 9, 8
• Bone is visible or palpable with sterile probe 9, 8
• Plain radiographs suffice for initial screening 8

Indications for Urgent Orthopedic Referral

Refer immediately for:

• Open fractures 1
• Circulatory compromise 1
• Significant soft tissue injury 1
• Fracture-dislocations 1
• Displaced intra-articular fractures 1
• Great toe fractures that are unstable or involve >25% of joint surface 1
• Most physeal fractures in children (except selected nondisplaced Salter-Harris I and II) 1

Follow-Up and Complications

Monitor for common complications including:

• Malunion or nonunion 2, 11
• Post-traumatic arthritis 2
• Infection/osteomyelitis (especially in diabetic patients) 6, 11
• Compartment syndrome (rare but limb-threatening) 2

For diabetic patients: Life-long frequent foot examinations are warranted, as most with history of foot complications remain at high risk for future problems. 6