Infectious Disease Consult for Bone Infection Treatment
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Questions and Answers

What type of nonunion is characterized by a lack of vascularity and bone formation at the fracture site?

  • Septic nonunion
  • Oligotrophic nonunion
  • Atrophic nonunion (correct)
  • Hypertrophic nonunion

    • Which type of bone healing involves the formation of a callus around the fracture site?

  • Hypertrophic bone healing
  • Tertiary bone healing
  • Primary bone healing
  • Secondary bone healing (correct)

    • What kind of bone graft contains viable osteoblasts, progenitor cells, and mesenchymal stem cells?

  • Autogenous bone graft (correct)
  • Allograft bone
  • Demineralized bone matrix
  • Platelet concentrates

    • In the context of nonunion, what does the term 'pseudarthrosis' refer to?

    <p>Absence of bone healing after a fracture</p> Signup and view all the answers

    Which factor promotes vascular ingrowth and healing in bone after a fracture?

    <p>Mesenchymal stem cells</p> Signup and view all the answers

    What is a characteristic feature of septic nonunion?

    <p>Infection at the fracture site</p> Signup and view all the answers

    What is the minimum post-occurrence period for a nonunion fracture?

    <p>9 months</p> Signup and view all the answers

    What term is used to describe a fracture that has healed in less than an optimal position?

    <p>Malunion</p> Signup and view all the answers

    Which type of nonunion shows radiographically abundant callus formation but no bridging bone and inadequate stability?

    <p>Hypertrophic nonunion</p> Signup and view all the answers

    What type of atrophic nonunion is evidenced by radiographically absent callus, poor biology, and inadequate fixation?

    <p>Oligotrophic nonunion</p> Signup and view all the answers

    Which term is used for a fracture showing slower progression to healing than anticipated and at risk of non-union without further intervention?

    <p>Delayed union</p> Signup and view all the answers

    What is the term used to describe a fracture that, in the opinion of the treating physician, has no possibility of healing without further intervention?

    <p>Malunion</p> Signup and view all the answers

    What type of nonunion is characterized by a combination of atrophic and hypertrophic features?

    <p>Oligotrophic nonunion</p> Signup and view all the answers

    Which factor is NOT mentioned as a risk factor for nonunion in the text?

    <p>High calcium levels</p> Signup and view all the answers

    What type of bone healing involves "Relative Stability" of bony surfaces?

    <p>Secondary</p> Signup and view all the answers

    In which type of nonunion is there a reduction in blood flow from organisms consuming nutrition to healthy bone?

    <p>Oligotrophic nonunion</p> Signup and view all the answers

    What is the critical aspect in guiding the proliferation and differentiation process of multipotent stem cells in osseous healing?

    <p>Bone morphogenic protein (BMP)</p> Signup and view all the answers

    Which type of atrophic nonunion is characterized by an intermediate fragment defect?

    <p>Intermediate atrophic nonunion</p> Signup and view all the answers

    What is the main role of the Diamond Concept Osteogenic Cells in bone healing?

    <p>Guiding the proliferation and differentiation of stem cells</p> Signup and view all the answers

    "Absolute Stability" of bony surfaces in bone healing involves:

    <p>Minimal inter-fragmentary strains of less than 5%</p> Signup and view all the answers

    "Mechanical Stability" in bone healing helps encourage which type of cell for ossification?

    <p>'Osteoblasts'</p> Signup and view all the answers

    Which term describes a nonunion characterized by an excessive callus formation radiographically but no bridging bone and inadequate stability?

    <p>Hypertrophic nonunion</p> Signup and view all the answers

    In the context of bone healing, what type of nonunion is evidenced by radiographically absent callus, poor biology, and inadequate fixation?

    <p>Atrophic nonunion</p> Signup and view all the answers

    Which term is used to describe a condition in which a fracture shows persistent mobility and an infection at the fracture site?

    <p>Septic nonunion</p> Signup and view all the answers

    What type of nonunion is characterized by a combination of hypertrophic and atrophic features?

    <p>Oligotrophic nonunion</p> Signup and view all the answers

    The term 'pseudarthrosis' refers to a condition where the fracture site exhibits mobility without any infection or inflammation, which type of nonunion does this refer to?

    <p>Atrophic nonunion</p> Signup and view all the answers

    'Pseudoarthrosis' does not address associated problems of angulation, malrotation, and shortening. This statement refers to which type of nonunion?

    <p>Atrophic nonunion</p> Signup and view all the answers

    What is the main feature of a hypertrophic nonunion?

    <p>Radiographically abundant callus formation with bridging bone</p> Signup and view all the answers

    What distinguishes atrophic nonunion from hypertrophic nonunion?

    <p>Radiographically absent callus formation</p> Signup and view all the answers

    What characterizes a septic nonunion?

    <p>Infection at the nonunion site</p> Signup and view all the answers

    Which type of nonunion is NOT included in the types of nonunion listed in the text?

    <p>Neurogenic Nonunion</p> Signup and view all the answers

    Pseudoarthrosis in bone healing refers to what condition?

    <p>Inadequate fracture healing leading to a false joint</p> Signup and view all the answers

    Which term describes the type of nonunion that shows good biology and blood supply but inadequate stability?

    <p>Atrophic Nonunion</p> Signup and view all the answers

    What distinguishes hypertrophic nonunion from atrophic nonunion?

    <p>Radiographically abundant callus formation with no bridging bone</p> Signup and view all the answers

    Why is septic nonunion associated with reduced new bone formation?

    <p>Decrease in blood flow from organisms consuming nutrition</p> Signup and view all the answers

    What characterizes oligotrophic nonunion?

    <p>Incomplete callus formation</p> Signup and view all the answers

    What distinguishes pseudoarthrosis from hypertrophic nonunion?

    <p>Excessive motion and instability</p> Signup and view all the answers

    Which type of nonunion is characterized by necrotic intermediate fragment?

    <p>Atrophic Nonunion</p> Signup and view all the answers

    'Atrophy' in nonunion refers to what specific aspect?

    <p>Absence of radiographic callus</p> Signup and view all the answers

    'Septic' in septic nonunion refers to what underlying cause?

    <p>Presence of infection and reduction in blood flow</p> Signup and view all the answers

    'Oligotrophic' in oligotrophic nonunion signifies what characteristic?

    <p>Inadequate callus formation</p> Signup and view all the answers

    'Pseudoarthrosis' is primarily associated with which factor?

    <p>'Excessive motion and instability'</p> Signup and view all the answers

    'Hypertrophic' in hypertrophic nonunion relates to which visual characteristic?

    <p>'Radiographically abundant callus with no bridging'</p> Signup and view all the answers

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