Foot and toe fractures

Hindfoot

Talus

Background

• Almost always associated with other injuries

Diagnosis

• CT often required for accurate diagnosis

Management

• Major fracture (talar neck and head)
  • Immediate ortho consultation required (high rate of avascular necrosis)
• Minor fracture
  • Posterior splint, NWB, ortho referral

Calcaneus

Background

• Associated injuries are common
• Types
  • Intra-articular (75%)
    • Sclerotic line may be only evidence of impacted fracture
  • Extra-articular (25%)
    • Anterior process fx is most common

Diagnosis

• Imaging
  • Decreased Boehler's angle (<25') may be only sign of fx (compare w/ opposite side)

Treatment

• Intra-articular fracture
  • Immobilization w/ posterior splint
  • Non-weightbearing
  • Elevation (very important - fx has high rate of severe swelling)
  • Ortho consult
• Extra-articular fracture
  • Immobilization and close ortho f/u

Images

• (A) Normal Boehler's angle and (B) Abnormal Boehler's angle

Midfoot

LisFranc Injury

• See Lisfranc Injury

Navicular/Cuboid/Cuneiform

• All are diagnosed/managed in similar way
  • Imaging: (weight-bearing AP, lateral, oblique)
    • CT sometimes necessary
  • Treatment: Non-weightbearing short leg cast, ortho referral

Forefoot

Fifth Metatarsal

Background

• Os peroneum is an accessory bone (ossicle)located at the lateral side of the tarsal cuboid, proximal to the base of 5th metatarsal, commonly mistaken for fx
• 3 types of fractures:

1. Tuberosity (styloid) avulsion fracture
   1. Most common fx at base of 5th metatarsal
   2. Sx often mild, pts usually present with sprained ankle complaint
   3. Occurs due to forced inversion foot/ankle while in plantar flexion
2. Jones or metaphyseal-diaphyseal junction fracture
   1. Abrupt onset of lateral foot pain, with no prior h/o pain at that site, suggests acute injury and helps distinguish from stress injury
   2. Occurs due to sudden change in direction w/ heel off the ground
   3. Edema & ecchymosis usually present, may not be able to bear weight
3. Diaphyseal stress fracture
   1. Occurs through repetitive microtrauma
   2. Ask about persistent pain prior to acute event to help distinguish stress fx from acute fx (sometimes sx of stress fx will worsen after acute stress and mislead you into thinking acute fx)

Diagnosis

Plain radiographs are usually adequate

• Must distinguish Jones fx from diaphyseal stress freacture

5th Metatarsal fx types

Management

• Tuberosity (Styloid) Avulsion Fracture
  • Refer to ortho if > 3mm displacement
  • Nondisplaced fx usually require only symptomatic tx, RICE
  • Walking boot (casting rarely necessary) and weight-bearing as tolerated, f/u in 1 week
• Jones Fracture (non-displaced)
  • Posterior splinting, NWB, RICE, ortho f/u in 3-5 days
  • 50% of Jones fx treated conservatively may result in nonunion or refracture
  • Conservative tx failure usually due to poor vascular supply of bone and premature return to weight-bearing
• Diaphyseal Stress Fracture
  • Ortho referral

Metatarsal

Background

• Must rule-out associated Lisfranc injury

Management

• Posterior splint, NWB, ortho referral in 2-3d

Phalange

• Management: buddy-taping, hard-soled shoe

See Also

• Fractures (Main)
• Foot Bones
• Ankle Fracture
• Ankle Sprain
• Ankle Fracture (Peds)
• Lisfranc Injury

Source

• Tintinalli
• Ilustration by Dr. Frank Gaillard; CC SA NC BY licence
• http://radiopaedia.org/articles/jones_fracture