Knee and Tib/FIb Lesson Outline I)Patient preparation. 1) What to check for on the patient A. Any metal (anklets) B. Remove pants 2) What to do if this happens. A. Ask them to remove any jewelry they may have on.

unkindnesskindUrban and Civil

Nov 15, 2013 (3 years and 8 months ago)

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Knee and Tib/FIb

Lesson Outline


I)

Patient preparation.


1) What to check for on the patient



A. Any metal (
anklets
)



B. Remove pants


2) What to do if this happens.



A
. Ask them to remove any jewelry they may have on.



B give them a gown


II)

The corr
ect

procedure

for a
n

AP Knee


1) The cassette size.


10x12 lengthwise


2
)
Position patient



A)
Patient is
seated on
table



B)
Long axis of leg

with long axis of IR



C)

Place the back
side

of knee

flat against the IR



D) Place
knee in center of table



E
)
Rotate foot internally about 5 degree


3
) Correct center point



A) Perpendicular



B)
1/2 inch distal to

apex


4
) Correct distance (40 SID)


5
) Correct collimation
.

Collimate to knee
.


6
) Place marker



A) Anatomically correct.



B)
In

the collimated

field.


7
) Correct breathing instruction
.

Hold still


8
)
Radiographic
Critique



A)

Entire
knee joint



B) 1 inch of distal femur



C) 1
-
2 inches if tib/fib





C
)
Adequate
Rotation




1)
The condyles
are symmetric on both sides




2)
The medial half of

fibular head superimposed by tibia




3)
I
n
tercondylar eminence in the center of fossa

in its fosa

II
I
.

T
he correct positioning for the
Medial oblique knee





1) Correct film size
.

10 x 12

lengthwise

2)
Positioning of patient


A) Patient
sitting o
n table


B)
with patient in same position as AP rotate leg internally 45 degrees


3
) Correct centering point


A)

1/2 inch distal to

apex

4
) Correct distance
.

40 SID

5
) Correct collimation
.

Collimate to
knee

6) Place marker

7
) Correct breathing instruction
.

Hold still

8
) Radiographic Critique


A)
Entire
knee joint



B)
Lateral condyles of fenur


C)
The space between the tibula and fibula are open

III. The correct position for the
Lateral Oblique knee



1) Cassette size.


10

x 12 lengthwise



2
) Pos
itioning of patient



A) Patient
setting on

table




B
)
With same positioning as AP knee rotate leg externally 45 degrees

3) Correct

centering point


A).
1
/2 inch distal to

apex

4)
Correct distance
.

40 inch SID

5)
Correct
collimation.
T
o
knee

6) Place mark
er

7
)
Correct breathing instruction
.

Hold still

8
)
Film Critique

A)

Entire
knee joint

B)

Medial condyles of femur

C)

Fibula superimposed by tibia


IV.

The correct positioning for the Lateral knee




1) Correct film size. 10 x 12 lengthwise

2) Positionin
g of patient


A) Patient sitting on table


B) rotate patient upon side of the affected knee


C) slightly bend knee to

20
-
30 degrees


D) place other leg out of the way

3) Correct centering point


A)

½ inch distal

apex


B) angle 5
-
7 degrees cephalad

4)
Correct distance. 40 SID

but distance is 39

5) Correct collimation. Collimate to knee

6) Place marker

7) Correct breathing instruction. Hold still

8) Radiographic Critique



A) Entire knee joint



B) Patella in a lateral position



C) Femoral condyles supe
rimposed













THE TIB/FIB


I
.

The correct positioning for the AP




1) Correct film size. 14 x 17 diagonally

2) Positioning of patient


A) Patient sitting on table


B) extend patient’s leg in same position as AP knee


C) center leg to the dia
gonal ends of IR


D) include both joints


3) Correct centering point


A) mid leg

4) Correct distance. 40 SID

to start with

5) Correct collimation. Collimate to knee

6) Place marker

7) Correct breathing instruction. Hold still

8) Radiographic Critique



A)

Entire

tib/fib with both joints



B) The
medial half of fibular head superimposed by tibia

C) Ankle in a true lateral position


II.

The correct positioning for the Lateral Tib/FIb




1) Correct film size. 14 x 17 diagonally lengthwise

2) Positioning

of patient


A) Patient sitting on table


B) Rotate patient upon affect side


C) Place other leg out of way


D) Place knee and ankle in true lateral position

3) Correct centering point


A) mid leg

4) Correct distance. 40 SID

5) Correct collimation. Colli
mate to knee

6) Place marker

7) Correct breathing instruction. Hold still

8) Radiographic Critique



A) Entire lower leg with both joints



B) True lateral knee



C) True lateral ankle