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adv pos arth inj
arthrography injection sites and projections
Question | Answer |
---|---|
What is the needle placement for myelography? | L2-L3, L3-L4 or C1-C2 |
CR entry for fusion L-spine | perp to L3 |
What is the needle placement for TMJ arthrography? | ½” anterior to the tragus |
What is the needle placement for shoulder arthrography? | ½” inferior and lateral to the coracoid |
What is the needle placement for wrist arthrography? | through dorsal wrist at junction of radius scaphoid and lunate |
What is the needle placement for a hip arthrogram? | ¾”distal to inguinal crease and ¾” lateral to palpable femoral pulse |
What projections should be done for orthoroentgenography? | AP (3 exp. On 1 film) |
Type of contrast used for opaque arthrography | iodinated water soluble |
Type of contrast used for pneumoarthrography | gaseous |
Type of contrast used for double-contrast arthrography | gaseous and iodinated water soluble |
What projections are commonly done with knee arthrography? | AP, APO (20 deg med), APO (20 deg lat), lateral, intercondylar fossa |
What projections are commonly done with shoulder arthrography? | AP internal, AP external, APO (30 deg), axial, tangential |
What is the injection site for the TMJ? | ½” ant. To tragus |