stapédotomiecommon nounSyllable DecompositionstapédotomieEtymologyexpandfrom Latin stapes, stapedes (stapes, stapedes), and -tomie ("section, cut").Definition1. Surgical perforation of the footplate of the stapes (platinotomy; the footplate is the part of this bone in the middle ear that rests on the oval window of the inner ear) and insertion of a prosthetic piston.médecineexpandLa stapédotomie peut remédier à la surdité due à l'otospongiose.