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MEDRADSC 2D03

Femur

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Proximal Femur Consists of: head, neck and 2

bony prominences Greater and

Lessertrochanter

head forms 2/3 ofsphere

directed upward andmedially

head and neck inclined

at an angle to shaft angle of

inclination

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Head

smooth, articular

cartilage

except smallroughened

depression

fovea(below

centre)

ligamentum teres

extending from fovea

to sides of

acetabular notch

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Neck 50mm longjoins shaft at 125

degrees (angle of

inclination) ensures lower limb

swings free of pelvis

neck slightly

flattened demonstrates ant.,

post., upper & lower

borders

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Neck Upper border

short, almosthorizontal, slightlyconcave

Lower border-

longer, runningobliquelydownwards

Anterior surface-

ridge at junction ofneck and shaft

Known asintertrochantericline

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Neck

Posterior surface prominent

intertrochanteric

crest

trochanters on eitherside of crest

middle of

intertrochanteric crest is

small bony elevation

quadrate tubercle

attaches strong

capsular ligament

of hip joint

Ant. Vs Post.

(seen above)

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Greater trochanter Bony prominence

projecting upwardsand lateral fromjunction neck andshaft

Has roughenedsurface - insertion ofmajority of buttockmuscles:

gluteus minimus piriformis

vastus lateralis

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Greater trochanter

Upper posterior

aspect extends

medially and

overhangs aroughened

depressed area

trochanteric fossa-insertion obturator

externus muscle of

pelvis

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Lesser trochanter small prominenceprojectingmedially belowintertrochantericcrest at junctionneck and shaft

posterior surfacesmooth

upper andanterior surfaceroughened forattachment of:

psoas major Iliacus

vastusmedialis

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Shaft long, cylindrical narrow shaft, widest distally

long axis 10 degrees fromthat of tibia

slight forward convexity posterior surface

well marked bony ridge

linea aspera- nutrient

arteries close to thisAttaching adductors:

Vasti

short head of bicepsfemoris

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Shaft upper posterior surfaces

widens to form V

2 ridges converge tobecome continuous with

linea aspera Lateral ridge - gluteal

tuberosity

Gluteus maximusmuscle attachment

Medial ridge - spiral lineor pectineal line

runs continuous tointertrochanteric

line

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lower 1/3 - posteriorsurface

linea aspera dividesinto lateral and

medial suparcondylarlines

triangular surfacebetween lines - poplitealsurface

forming floor upperpart of popliteal fossa

popliteal artery runshere - separated

from bone by fatlayer

Shaft

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Thats all for the Femur Folks!!