rheumatology and orthopaedics Flashcards
rickets: summarise the pathology of rickets
1
Q
what is rickets
A
defective mineralisation of normally synthesised bone matrix in children
2
Q
2 types of rickets
A
deficiency of vitamin D, deficiency of PO4
3
Q
where are likely to occur in rickets
A
Looser’s zone
4
Q
features of horizontal pseduofractures in Looser’s zone
A
right angles to cortex, extending partway through bone, in areas of high tensile stress
5
Q
characteristic sign of rickets
A
bowing of legs
6
Q
location of radiological signs of rickets
A
before growth plate closure, radiological signs centred mainly to growth plates, changes of osteomalacia
7
Q
radiological signs of rickets
A
indistinct/frayed metaphyseal margin, widened growth plate without calcification, cupping/splaying metaphyses due to weight bearing, enlargement of anterior ribs, osteopenia
