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K Knee
notes
Term | Definition |
---|---|
knee jt | no bony stability/1 of most injured jts/largest jt in body/synovial hinge jt/flex & ext possible motions/not a true hinge jt due to screw home |
degrees of flexion in knee jt | 120-135 degrees |
genu recurvatum | back knees/beyond 5 degrees hyper ext |
patellofemoral jt | articulation between femur & patella |
Q angle | in knee ext this angle ranges from 13-19 degrees in normal individuals/generally wider in women |
patella | triangular sesamoid bone within the quadriceps mm tendon |
calcaneus | most posterior tarsal bone (heel) |
anterior cruciate lig | function is to stop tibia from coming anterior on femur |
posterior cruciate lig | funtion is to stop tibia from coming posterior on femur |
collateral ligaments | medial collateral lig (or tibial collateral lig) & lateral collateral lig (or fibular) |
medial collateral lig | flat, broad lig attaching to med condyles of the femur & tibia |
lateral collateral lig | round, cordlike lig, attaches to lat condyle of femur & runs down to head of fibula (independent of any attachment to lat meniscus) protects jt from stresses to medial side of knee. strong, not usually injured |
medial & lateral menisci | locatated on superior surface of the tibia, they are 2 half-moon, wedge-shaped fibrocartilage disks/ designed to absorb shock |
popliteal space | diamond shaped fossa behind the knee/contains important nerves (tibial & common peroneal) & blood vessels (popliteal artery & vein) |
pes anserine | goose foot/ sartorius, gracilis & semitendinosus |
genu valgum | knock knees/ larger Q angle/ knees tend to touch/ ankles are apart |
genu varum | bow legs/ smaller Q angle/ knees apart/ankles touch |