Edition by (Eisenberg, 2024) Verified Chapters 1 - 12, Complete
Newest Version
what are the two classification for bone lesions - ANSWER: 1. osteolytic
2. osteoblastic
define osteolytic - ANSWER: loss or destruction of bone. not systemic but localized
define osteoblastic - ANSWER: formation of additional bone or bone scarring
True/False - osteolytic means we can probably see through the bone on a radiograph
- ANSWER: TRUE
which genetic disorder can be treated with orthopedic intervention and is associated
with anatomy that looks like a "golf club" - ANSWER: club foot (talipes) congenital
what is a malformation of the acetabulum resulting in disclocation and occurs during
a breech birth presentation - ANSWER: congenital hip dysplasia (dislocation)
which rare hereditary bone dysplasia is a failure of the resorptive mechanism of
calcified cartilage interferes with the normal replacement by mature bone, results in
brittle bones aka "marble bones' - ANSWER: Osteopetrosis (congenital)
how does osteopetrosis present on a radiograph - ANSWER: uniform density of bony
anatomy
what is the most common from of dwafism - ANSWER: achondroplasia (congenital)
what disorder is characterized by decreased enchondromal bone formation, is
autosomal dominant, short limbs with normal axial skeleton - ANSWER:
achondroplasia
what is characterized as brittle bone disease and a disorder of connective tissue due
to lack of collagen. typically multiple fx result - ANSWER: Osteogenesis Imperfecta
(congenital)
define osteogenesis imperfecta Type 1 - ANSWER: later onset and milder course
define osteogenesis imperfecta Type II - ANSWER: most severe as and fx occur within
utero
what disease is characterized by decrease in bone mass and density combined with
loss of bony matrix and mineralization - ANSWER: Osteoporosis (metabolic)
, what causes osteoporosis - ANSWER: bone resorption outpaces bone formation
leading to thin, fragile bones
TRUE/FALSE - Osteoporosis is more frequent in older post-menopausal women with
estrogen deficiency - ANSWER: TRUE
what are some increased risk factors for osteoporosis - ANSWER: 1. being female
2. Asian or
3. Caucasian decent
4. petite frame
5. smoking
what is the best modality to evaluate osteoporosis - ANSWER: DEXA scan
define spina bifida - ANSWER: A birth defect that results from the failure of the spine
to close posteriorly during the first month of pregnancy.
what is the mild, insignificant form of spina bifida called - ANSWER: spina bifida
occulta
in spina bifida, what is it called when only the meninges are herniated posteriorly -
ANSWER: meningocele
in spina bifida, what is called when the meninges and the spinal cord are herniated
posteriorly - ANSWER: myelomeningocele
what is a common complication during spinda bifida repair - ANSWER:
hydrocephalus
for osteopetrosis would a tech increase or decrease technical factors - ANSWER:
increase technical factors to compensate for the increase in bone formation
for osteogenesis imperecta would a tech increase or decrease technical factors -
ANSWER: decrease technical factors to make up for the loss of bone quality
which disease process is associated with a bowing deformity of the femurs and
greenstick fx's. Treated with large doses of vitamin D and/or cod liver oil - ANSWER:
Rickets (metabolic)
How does *Rickets* present in radiography? - ANSWER: widened zone of provisional
calcification and metaphyseal splaying and fraying. (becomes widened)
which chronic systemic disease of unknown cause that appears primarily as an
inflammatory arthritis of the small joint of the hands and feet - ANSWER:
Rheumatoid arthritis