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Flashcards in thigh and knee (brian) Deck (23)
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1

name the expansions/insertions of semimembranosus

posteromedial tibial plateau (under MCL)

oblique popliteal ligament

posterior capsule+posterior horn medial meniscus

posterior oblique ligament

popliteus aponeurosis

 

(5 total)

2

what are the boundaries of Hunter's canal?

vastus medialis (anterior/lateral)

floor: adductor longus (sup) and magnus (inf)

roof: sartorius

3

contents of hunter's canal

superficial fem a and v

femoral n branch to vastus medialis

saphenous n

4

what fibrous structure encapsulates the structures of hunter's canal?

vastoadductor membrane

5

distal femur articular angle?

proximal tibia articular angle?

saggital slope of tibial plateau?

distal femur 9 degrees valgus relative to anatomic axis

proximal tibia 3 degrees varus relative to anatomic axis

tibial plateau has 10 degree posterior slope (with menisci acounted for, more like 3 degrees)

6

which tibial plateau is concave/convex?

medial: concave

lateral: convex

 

remember the "medal pivot" TKA

7

how many facet(s) are on the patella?  name them

7 facets

3 medial

 3 lateral

1 odd facet medial to medial facets

8

bipartite patella - usualy occurs where?

superolateral pole

9

the medial knee: list structures in the 3 layers

superficial:

medial patellar retinaculum (ant)

sartorial fascia (mid)

gastroc fascia (post)

 

middle:

MPFL (ant)

SMCL (mid)

semi-M tendon (post)

 

deep:

capsule

deep MCL

10

the biceps femoris tendon inserts anterior or posterior to LCL on fibular head?

posterior.

LCL is most anterior structure on fibular head

11

what structures comprise the posterolateral corner of the knee? PLC

ITB

biceps femoris

lateral retinaculum

popliteofibular ligament

lateral capsule

popliteus

LCL

arcuate ligament

12

describe the dial test and what a positive result is

ER legs with knees at 30 deg and 90 deg.

>10 deg side to side difference at 30 deg knee flexion only is PLC injury.  If occurs at both 30 and 90 deg knee flexion, then =PLC+PCL injury

13

ligament connecting the menisci to the tibial plateau is called what?

coronary ligament

14

What ligament lies anterior and posterior to the PCL insertion?

anterior: humphrey ligament

posterior: wrisberg ligament

15

ACL bundles: name them, and when are they tight?

anteromedial: tight in flexion

posterolateral: tight in extension

16

blood supply to ACL

middle geniculate a

17

ACL insertion is in-line with what knee structure?

anterior horn of lateral meniscus

18

PCL bundles: name them, and when are they tight?

anterolateral: tight in flexion

posteromedial: tight in extension

19

blood supply to PCL

middle geniculate artery

20

when does meniscal blood supply reach adult pattern?

age 10

21

articularis genu muscle: OINA

from anterior femur to suprapatellar bursa

femoral n

pulls suprapatellar bursa during knee extension to avoid being pinched by PFJ

22

popliteal fossa: boundaries?

semiM

biceps femoris

gastroc med and lat heads

23

popliteal fossa: contents?

from lat to med:

common peroneal n

tibial n

pop v

pop a