Abstract
OTOLARYNGOLOGISTS have been increasingly concerned with the difficulty in evaluating reports of tympanoplasty procedures. In some instances the case analysis or follow-up is too superficial to provide meaningful information. Essential facts related to the status of the middle ear and mastoid at surgery are at times omitted. Owing to the large number of otologic surgeons involved in the development of these new techniques, a multiplicity of terms to describe similar surgical procedures has developed. This multiplicity of terms has resulted in considerable semantic confusion with consequent difficulty in classification of the work done by different surgeons. A subcommittee of the Committee on Conservation of Hearing of the American Academy of Ophthalmology and Otolaryngology was appointed whose duty it was to prepare a classification for operations on the middle ear and mastoid that would be both comprehensive and reasonably simple. This group consisted of 15 men representing opinions by otologists affiliated