Normal Variants + Anomalies of the Extremities Flashcards
Accessory ossicle on hip
smooth corticle bone that did not fuse to femur head
Os acetabuli
smooth cortical bone that did not fuse to acetabulum
Acetabular impingment
acetabulum for prox femur is abnormally shaped
pincer, CAM, combined
Herniation pit of femoral head
Oval lucency along ant femoral neck (similar to shmorals node)
-no clinical sig
Developmental dysplasia of Hip (DDH) presentation and Putties triad
-Superlateral displacent of prox femur (w/ some delayed ossification of femoral head)
- shallow acetabulum
- Superlolateral displacement
- Delayed ossification of head
slipped capital femoral epiphysis (who is it most common in, what do they present with and what line do u use to assess it)
- 10-15yo and males
- present w hip tenderness + limited ROM
Kliens line-> assesses the femoral head relative to neck
Bipartate patella (where located, types)
- unfused upper-outer quadrent of patella
- Bilateral 40-80% of the time (can also be tripartite)
How does dorsal defect of the patella present and how often is it bilateral
upper, outer part of patella (but not quite seperated into 2 pieces like bipartate)
-80% bilateral
Os Fabella (location)
small piece of bone located post to lat femoral condyle
Tug lesion
Cortical thickening + irregularity @ muscular insertion site
Tarsal coalition (and two types)
Congenital fusion of 2 or more tarsals
- calcaneonavicularr coalition
- Talocalcaneal- fusion w reverse c sign
Talar beak
small addition of bone on top of talus
Os peroneum
small ossicle located in peroneus longus tendon (by head of 5th digit)
Os subfibulare
accessory ossicle underneath of fib (lat maleolus), seen in ap view
Accessory navicular- what view is it seen it, 3 types and what one causes symptoms
AP view
type 1- Os tibiale externum
type 2- Prehallux (may cause symptoms)
type3- cornuate navicularr
