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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?
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?
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?
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?
In the context of nonunion, what does the term 'pseudarthrosis' refer to?
Which factor promotes vascular ingrowth and healing in bone after a fracture?
Which factor promotes vascular ingrowth and healing in bone after a fracture?
What is a characteristic feature of septic nonunion?
What is a characteristic feature of septic nonunion?
What is the minimum post-occurrence period for a nonunion fracture?
What is the minimum post-occurrence period for a nonunion fracture?
What term is used to describe a fracture that has healed in less than an optimal position?
What term is used to describe a fracture that has healed in less than an optimal position?
Which type of nonunion shows radiographically abundant callus formation but no bridging bone and inadequate stability?
Which type of nonunion shows radiographically abundant callus formation but no bridging bone and inadequate stability?
What type of atrophic nonunion is evidenced by radiographically absent callus, poor biology, and inadequate fixation?
What type of atrophic nonunion is evidenced by radiographically absent callus, poor biology, and inadequate fixation?
Which term is used for a fracture showing slower progression to healing than anticipated and at risk of non-union without further intervention?
Which term is used for a fracture showing slower progression to healing than anticipated and at risk of non-union without further intervention?
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?
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?
What type of nonunion is characterized by a combination of atrophic and hypertrophic features?
What type of nonunion is characterized by a combination of atrophic and hypertrophic features?
Which factor is NOT mentioned as a risk factor for nonunion in the text?
Which factor is NOT mentioned as a risk factor for nonunion in the text?
What type of bone healing involves "Relative Stability" of bony surfaces?
What type of bone healing involves "Relative Stability" of bony surfaces?
In which type of nonunion is there a reduction in blood flow from organisms consuming nutrition to healthy bone?
In which type of nonunion is there a reduction in blood flow from organisms consuming nutrition to healthy bone?
What is the critical aspect in guiding the proliferation and differentiation process of multipotent stem cells in osseous healing?
What is the critical aspect in guiding the proliferation and differentiation process of multipotent stem cells in osseous healing?
Which type of atrophic nonunion is characterized by an intermediate fragment defect?
Which type of atrophic nonunion is characterized by an intermediate fragment defect?
What is the main role of the Diamond Concept Osteogenic Cells in bone healing?
What is the main role of the Diamond Concept Osteogenic Cells in bone healing?
"Absolute Stability" of bony surfaces in bone healing involves:
"Absolute Stability" of bony surfaces in bone healing involves:
"Mechanical Stability" in bone healing helps encourage which type of cell for ossification?
"Mechanical Stability" in bone healing helps encourage which type of cell for ossification?
Which term describes a nonunion characterized by an excessive callus formation radiographically but no bridging bone and inadequate stability?
Which term describes a nonunion characterized by an excessive callus formation radiographically but no bridging bone and inadequate stability?
In the context of bone healing, what type of nonunion is evidenced by radiographically absent callus, poor biology, and inadequate fixation?
In the context of bone healing, what type of nonunion is evidenced by radiographically absent callus, poor biology, and inadequate fixation?
Which term is used to describe a condition in which a fracture shows persistent mobility and an infection at the fracture site?
Which term is used to describe a condition in which a fracture shows persistent mobility and an infection at the fracture site?
What type of nonunion is characterized by a combination of hypertrophic and atrophic features?
What type of nonunion is characterized by a combination of hypertrophic and atrophic features?
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?
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?
'Pseudoarthrosis' does not address associated problems of angulation, malrotation, and shortening. This statement refers to which type of nonunion?
'Pseudoarthrosis' does not address associated problems of angulation, malrotation, and shortening. This statement refers to which type of nonunion?
What is the main feature of a hypertrophic nonunion?
What is the main feature of a hypertrophic nonunion?
What distinguishes atrophic nonunion from hypertrophic nonunion?
What distinguishes atrophic nonunion from hypertrophic nonunion?
What characterizes a septic nonunion?
What characterizes a septic nonunion?
Which type of nonunion is NOT included in the types of nonunion listed in the text?
Which type of nonunion is NOT included in the types of nonunion listed in the text?
Pseudoarthrosis in bone healing refers to what condition?
Pseudoarthrosis in bone healing refers to what condition?
Which term describes the type of nonunion that shows good biology and blood supply but inadequate stability?
Which term describes the type of nonunion that shows good biology and blood supply but inadequate stability?
What distinguishes hypertrophic nonunion from atrophic nonunion?
What distinguishes hypertrophic nonunion from atrophic nonunion?
Why is septic nonunion associated with reduced new bone formation?
Why is septic nonunion associated with reduced new bone formation?
What characterizes oligotrophic nonunion?
What characterizes oligotrophic nonunion?
What distinguishes pseudoarthrosis from hypertrophic nonunion?
What distinguishes pseudoarthrosis from hypertrophic nonunion?
Which type of nonunion is characterized by necrotic intermediate fragment?
Which type of nonunion is characterized by necrotic intermediate fragment?
'Atrophy' in nonunion refers to what specific aspect?
'Atrophy' in nonunion refers to what specific aspect?
'Septic' in septic nonunion refers to what underlying cause?
'Septic' in septic nonunion refers to what underlying cause?
'Oligotrophic' in oligotrophic nonunion signifies what characteristic?
'Oligotrophic' in oligotrophic nonunion signifies what characteristic?
'Pseudoarthrosis' is primarily associated with which factor?
'Pseudoarthrosis' is primarily associated with which factor?
'Hypertrophic' in hypertrophic nonunion relates to which visual characteristic?
'Hypertrophic' in hypertrophic nonunion relates to which visual characteristic?
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