Term
| What are the 2 layers of the periosteum? |
|
Definition
| osteogenic inner layer and fibrous outer layer. |
|
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Term
| when does the cuboid ossification centre appear? |
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Definition
|
|
Term
| when does the navicular ossification appear? |
|
Definition
|
|
Term
| when do sesamoids appear? |
|
Definition
|
|
Term
| when would u expect the calcaneal apophysis to appear |
|
Definition
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|
Term
| the 3rd cuneiform is expected to begin ossifying at what age |
|
Definition
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|
Term
| what bones of the foot when generally appear on xray at birth |
|
Definition
| calcaneus, metatarsals, phalanges, cuboid, talus. |
|
|
Term
| In what order do the cuneiforms and navicular appear? |
|
Definition
| lateral cuneiform, medial cuneiform, intermediate cuneiform, navicular. |
|
|
Term
| at what age do the metatarsals develop 2° ossification centres? |
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Definition
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|
Term
| At what age does the 5th metatarsal base fuse? |
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Definition
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|
Term
| what are some type/casues of generalised osteopenic bone |
|
Definition
| osteomalacia, osteoporosis, Rickets, Hyperparathyroidism (and other endocrine disorders), infiltrative dz, medication (heparin and steroid) and idiopathic |
|
|
Term
| what pt group does rickets affect? |
|
Definition
| paeds, before epiphysial closure |
|
|
Term
| what are some typical xray findings of rickets? |
|
Definition
| reduced calcification of physis, growth plate widened, thickened and irregular, mushroom appearance, cortical thinning and bowing, stress fxs |
|
|
Term
| when is regional bone loss generally seen after imobilization? |
|
Definition
|
|
Term
| what are the 3 general types of REGIONAL BONE LOSS |
|
Definition
1. paralyis - muscle dystropjhy will lead to atrophic changes in bone with subswequent calcifications of muscle tisse
2. Transient Regional Osteoporosis - related to tarsel tunnel syndrome and cause by decreased nerve conduction velocity
3. RSDS - reflex sympathetic, dystrophic syndrome |
|
|
Term
| what % of bone loss must have occured before xray changes? |
|
Definition
|
|
Term
| osteogenic imperfecta is generally what? |
|
Definition
| inability to produce osteoid at the reate it is lysed |
|
|
Term
| characteristic xray features of osteogenic imperfecta |
|
Definition
| fractures, static deformity, decreased stature, hyperplastic callous, blue sclara |
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|
Term
| The Os Trigonum is found at the |
|
Definition
| at the lateral tubercle of the talus. |
|
|
Term
| The Os Tibiale Externum is found at the |
|
Definition
|
|
Term
| 8 A calcified perforating artery can be mistaken for |
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Definition
|
|
Term
| os Vesalianum is best seen on which view? |
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Definition
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