Stress fracture

Stress fracture(피로 골절)은 뼈가 스스로 재생하는 능력보다 더 가한 스트레스가 지속적으로 누적되어 생기는 골절이다.

분류

• Fatigue fracture(abnormal stress on normal bone)
  • tibia(m/c), metatarsal bones, calcaneous, femoral neck
• Insufficiency fracture(normal stresses on abnormal bone)로 분류

감별 질환

• Osteoid osteoma
  • A stress fracture appears as an infraction in the center of an area of cortical thickening, whereas osteoid osteoma appears as around nidus
  • bone scan: a stress fracture demonstrates linear, intense uptake of the tracer whereas osteoid osteoma displays the double-density sign(intense central uptake is seen at the site of the nidus and moderate uptake is seen in the surrounding area)
• MTSS