Learn how to say Orthopedy correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word orthopaedics:
[treated as singular]
the branch of medicine dealing with the correction of deformities of bones or muscles.
mid 19th century (originally relating specifically to children): from French orthopédie, from Greek orthos ‘right or straight’ + paideia ‘rearing of children’
Spell orthopaedic with -pae- in the middle (the spelling orthopedic is American).