The incisionless Fritsch otoplasty is a minimally invasive procedure for pinning protruding ears.
He found that his minimally invasive technique did not produce any satisfactory results in the case of pronounced conchal hyperplasia: "Mega ear".
In his later publications, the antihelical cartilage "spring" is scratched or scored, sometimes quite deeply, with only a needle and without incisions.
Later, Fritsch sometimes removed excessively thick soft-tissue or bone between the conchal bowl and the mastoid through 2mm incisions.
According to Weerda:[6] Cosmetically, the different procedures of all otoplasty surgery types can cause disfiguring cartilage edges along the anterior surface of the antihelix if the cartilage is scored too deeply or the perichondrium is injured; post-operative bleeding; hematoma; relapse (ears protruding again); hypersensitivity; pain with pressure and cold, pressure damage (necrosis) from too tightly fitting hard bandages; perichondritis (inflammation of the cartilage); stronger asymmetry of the ears (see also on otoplasty).