Calcaneus radiographic positioning for bsc medical imaging technology students

Bsc medical imaging technology students allied health science

1. Cal
caneus
Chandana.R
Deot. Of MIT
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2. Contents
•Related radiological anatomy
•Planto-dorsal (axial)
•Lateral
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3. A
natomy
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4. FRACTURE
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5. DISPLACEMENT
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6. LESION
 (Chondroblastoma)
Chondroblastoma is a rare
bone tumor, usually benign
with a slow-growing
nature.
it is the most common
epiphyseal tumor.

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7. SOLITARY BONE CYST
A unicameral bone cyst
(UBC) is a common, benign,
fluid-filled lesion found
almost exclusively in children
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8. CALCANEAL SPUR
Hook of bone protruding from the
bottom of the foot , caused by Plantar
fasciitis is a painful inflammatory
process of the plantar fascia, The
plantar fascia is a thick fibrous band of
connective tissue originating on the
bottom surface of the calcaneus
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9. LATERAL – BASIC
•POSITIONING:-
•From the supine position, the patient rotates on to
the affected side.
•The leg is rotated until the medial and lateral
malleoli are superimposed vertically.
• A pad is placed under the anterior aspect of the
knee and the lateral border of the fore foot for
support.
•The cassette is placed with the lower edge just below
the plantar aspect of the heel.
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10. •CENTRAL RAY:-
•Centre 2.5 cm distal to the medial malleolus, with the vertical
central ray perpendicular to the cassette.
• TECHNIQUES:-
•45-50 kvp
•6-8mAs
•SID:100cm
Sinus tarsi
Talotibial
joint
Sustentaculum tali
Tuberosity
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11. •EVALUATION CRITERIA:-
•Calcaneus should not be rotated
•Density of sustentaculum tali And lateral tuberosity
should be clearly seen
•Sinus tarsi should be clearly seen.
•Ankle joint and adjacent tarsals should be included.
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12. AXIAL-(PLANTODORSAL) PROJECTION
•POSITIONING:-
•The patient sits on the X-ray, table with both limbs extended.
• The affected leg is rotated medially until both malleoli are equidistant from
the film.
•The ankle is dorsiflexed The position is maintained by using a bandage
strapped around the forefoot and held in position by the patient.
•The cassette is positioned
with its lower edge just distal
to the plantar aspect of the heel.
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13. •CENTRAL RAY:-
•The central ray is directed cranially at an angle
of 40 degrees to the plantar aspect of the heel.
•TECHNIQUES:-
•45-50 kvp
•6-8mAs
•SID:100cm
Tuberosity
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14. •EVALUATION CRITERIA:-
•Calcaneus should be visualized to include the talocalcaneal
joint
•Calcaneus should not be rotated
•Anterior portion of calcaneus should be seen without excessive
density over the posterior portion
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15. Thank YOU
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