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upper limb · AP / Lateral / PA Oblique
Thumb AP, Lateral & Oblique
Seated at end of table.
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AI Patient · KV Sir
How to perform this view
- 01
AP: rotate hand internally until posterior thumb on IR; hold other fingers back.
- 02
Lateral: place hand pronated, arch to bring thumb lateral.
- 03
Oblique: hand flat (naturally oblique thumb).
- 04
CR to 1st MCP joint.
Anatomical & patient position
Patient: Seated at end of table.
Part: AP: hand internally rotated so thumbnail touches IR. Lateral: hand arched, thumb in lateral.
Central ray & centring point
Perpendicular to 1st MCP joint.
Exposure factors
kVp
50-60 kVp
mAs
1-3 mAs
SID
100 cm
IR size
18 x 24 cm
Grid
No
Respiration
N/A
Clinical indications
- Bennett / Rolando fracture
- Gamekeeper's thumb
Contraindications & precautions
- Gross deformity / open fracture - do not manipulate; adapt projection and use horizontal beam
Structures shown & evaluation criteria
- Phalanges, 1st metacarpal, trapezium