Knee Osteology

Where is the intertrochanteric line found?

the anterior aspect of femur between greater and lesser trochanters

What is the line called on the posterior aspect of the femur running from the greater to lesser trochanters?

the intertrochanteric crest

What is an extension off of the lateral lip of linea aspera?

gluteal line

What is an extension off of the medial lip of the linea aspera?

pectineal line

What is the part called on the posterior femur between the condyles?

intercondylar fossa

What makes up the articular surface of the femur? Where does this touch?

the lateral and medial condyles; touches the medial and lateral plateus of the tibia

What is the largest sesamoid bone?

patella

Why is a sesamoid bone important?

it acts as a pully system / mechanical lever to allow for more strength to be created as more tension is able to be taken on by the muscle

Where is the patella located?

within the quadriceps fears tendon

What are the longitudinal striae?

lines on the anterior patellar surface that run superior-inferior due to the direction of tension placed upon the bone; helps support the direction of movement

T or F: The base of the patella is superior

True

T or F: The base and apex of the patella are posterior

False; anterior

What separates the lateral and medial facet of the patella?

the vertical ridge

T or F: The vertical ridges of the patella are on the anterior surface

False; there is only 1 vertical ridge and it is on the posterior aspect

What are the facets of the posterior patella?

lateral facet (larger), medial facet(smaller), and the medial vertical facet

T or F: The medial vertical facet is within the medial facet

True

What is bipartite patella? What may cause it?

when the patella is separated; may be caused by an impartial fusion at birth or can happen during the lifetime from wear&tear or injury

What is the second largest bone in the body?

tibia

What is the weight-bearing bone of the leg? What % of weight?

tibia; 90%

T or F: The lateral condyle of the tibia is superior to the head of the fibula

True

What features of the tibia are above the condyles?

the superior articular surfaces and medial/lateral intercondylar tubercles

Where is the fibular facet?

inferior aspect of the lateral condyle of the tibia

Where is the intercondylar area?

the superior proximal aspect of the tibia between the superior articular surfaces

What is Osgood-Schlatter disease? How it is caused?

outgrowth of the tibial tuberosity due to the forces placed upon this region due to the passive pull from the quadriceps tendon; often occurs with growth spurts as the bone grows faster than the muscle can adapt; therefore, the muscle becomes tight and pulls on the tendon, causing the bone beneath to adapt to the forces placed upon it

Where is the soleal line of the tibia?

located on the posterior side, more proximal and closer to the fibula

T or F: The tibia has a medial malleolus

True

What is the talar articular surface?

part of the tibia where it articulates with the talus bone; creates the talocrural joint along with the fibula

How much weight does the fibula hold? What is the fibula's main purpose?

10%; main purpose is for muscle attachment

T or F: The apex of the fibula is known as the styloid process

True

T or F: The styloid process of the fibula is distal

False; it is proximal

T or F: The tibial facet is found on the distal surface of the fibula

False; it is on the superior surface proximally

The tibial facet of the fibula articulates with what?

the fibular facet on the tibia

What is the most distal aspect of the fibula called?

lateral malleolus

What part of the fibula articulates with the talus?

talar facet

What is the malleolar fossa?

indentation a tad lower than the talar facet

What is the heel bone?

calcaneus

The joint between the talus and calcaneus is called what?

subtalar joint