Lecture (14)

Ankle joint• Basic projections• AP• Lateral• oblique

AP ankleExposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 5 100 No Fine 24 x 30 cm

• Patient Position

• ٍ�Supine or seated

• Leg fully extended • Put small support under knee

• Part position• Adjust cassette to ankle • Adjust plantar surface perpendicular• Adjust toes pointing vertically• Slightly Rotate foot medially until • malleoli parallel to film holder

• Central Ray• Perpendicular

• Center Point

• Mid way between malleoli

• Structure shown

Ankle joint, distal tibia and fibula, and proximal talus.

• Lateral ankle • Exposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 5 100 No Fine 24 x 30 cm

Patient Position

�ٍSupine roll onto affected sideLeg fully extended Put small support under kneePart positionAdjust cassette to ankle Flex ankle to 90 degrees angleAdjust foot in lateral positionCentral RayPerpendicular Center Point Medial malleolus

• Structure shown

Ankle joint, distal tibia and fibula and proximal tarsal bones, lateral Calcaneus]

• Oblique ankleExposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 5 100 No Fine 24 x 30 cm

Patient Position �ٍSupine or seated on table top

Part positionAdjust cassette to ankle Flex ankle to 90 degrees angleRotate leg and foot mediallyAdjust the malleoli to be at45 degrees to cassetteCentral RayPerpendicular Center Point

Mid way between malleoli

• Structure shown

Ankle joint, distal Proximal tibiofibular joint

tibia and fibula and proximal talus