Osteonecrosis & Osteochondrosis Flashcards
1
Q
- Insidious disorder leading to destruction of viable periarticular epiphyseal and subchondral bone
- Other name of this condition
- Incidence
- Sex
A
1, Osteonecrosis
2. Avascular Necrosis
3. 20,000 persons/year
4. Male Predominance
2
Q
- A condition which a degeneration followed by reossification of non fused epiphyses
- Condition affecting _______.
- Best known variant
A
- Osteochondrosis
- Children
- Osgood Schlatter Disease
3
Q
Potential Etiologic Factors for Osteonecrosis
A
- Traumatic- post ORIF of femoral neck fx
- Non-traumatic
4
Q
- refers to thebone scintrigraphypattern where there is increased uptake peripherally with a photopenic center.
- This appearance may be seen in a number of cystic lesions including:
A
- Doughnut sign/lesion
- aneurysmal bone cyst
- giant cell tumor
- simple bone cyst
5
Q
AVN of the femoral head epiphysis
A
Legg-Calve Perthes Disease
6
Q
AVN of the lunate
A
Kienbock’s Disease
7
Q
Post traumatic AVN of the vertebral body
A
Kummell Disease
8
Q
AVN of the metatarsal head (most common 2nd)
A
Freiberg’s Disease
9
Q
AVN of the tarsal navicular
A
Kohler’s Disease/ Muller-Weiss Syndrome
10
Q
spontaneous osteonecrosis of the knee
A
SONK or Ahlback Disease
11
Q
AVN of the humeral head
A
Hass Disease
12
Q
AVN of the talus
A
Dias Disease
13
Q
AVN of the medial epicondyle
A
Adam’s Disease
14
Q
AVN of distal radial epiphysis
A
Madelung Disease
15
Q
AVN of the calcaneus
A
Sever Disease
