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==Calcaneus==
==Calcaneus==
*If suspect fx order an axial view
===Background===
*Associated injuries are common
*Types
*Types
**Intra-articular (75%)
**Intra-articular (75%)
***Sclerotic line may be only e/o impacted fracture
***Sclerotic line may be only evidence of impacted fracture
***May only be apparent based on decreased Bohler's angle (<30degrees)
***Draw line from highest posterior to highest point of calcaneus
***Draw line from highest anterior to highest point of calcaneus
**Extra-articular (25%)
**Extra-articular (25%)
***Anterior process fx is most common (lateral radiograph)
***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
[[File:Boehler's_Angle.jpg]]


==Fifth Metatarsal==
==Fifth Metatarsal==

Revisión del 20:06 17 feb 2012

Talus

  • Neck
    • High risk of avscular necrosis
  • Body
    • Delay in dx/tx can lead to non-union or subtalar osteoarthritis

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

File:Boehler's Angle.jpg

Fifth Metatarsal

Jones Fracture

  • <1.5 cm from proximal tip of 5th metatarsal
  • transverse
  • ORIF

Dancer's (Avulsion) Fracture

  • proximal tip of 5th metatarsal (more proximal than Jones)
  • avulsion (spiral) fracture, frequently displaced
  • inversion injury (common in ballet dancers)
  • Do not confuse unfused apophysis with a fracture!
  • treatment
    • mildly displaced: heal w/ 6 to 8 weeks w/ short leg cast
    • displaced frxs (3-5 mm): may require ORIF

Lisfranc Injury

See Also