title: Distance measurement in middle ear surgery using a telemanipulator.
abstract: In this article, a new tool for the intraoperative measurement of distances within the middle ear by means of a micromanipulator is presented. The purpose of this work was to offer the surgeon a highly accurate tool for measuring the distances between two points in the 3D operational field. The tool can be useful in various operations; this article focuses, however, on measuring the distance between the stapes footplate and the long process of the incus of the middle ear. This distance is important for estimating the proper prosthesis length in stapedotomy for treating otosclerosis. We evaluated the system using a simplified mechanical model. Our results show that the system can measure distances with a maximum error of 0.04 mm.
authors: Institute of Microtechnology and Medical Device Technology (MiMed), Technische Universität München, Germany. thomas.maier@tum.de
authors: Thomas
authors: T
authors: Maier
authors: Gero
authors: G
authors: Strauss
authors: Franz
authors: F
authors: Bauer
authors: Andreas
authors: A
authors: Grasser
authors: Nobuhiko
authors: N
authors: Hata
authors: Tim C
authors: TC
authors: Lueth
mesh_terms: D004432:Ear, Middle / Q000601:surgery*; D004581:Electronics; D004867:Equipment Design; D006801:Humans; D021621:Imaging, Three-Dimensional; D008846:Micromanipulation; D010040:Otosclerosis / Q000601:surgery*; D019047:Phantoms, Imaging; D012016:Reference Values; D015203:Reproducibility of Results; D012984:Software; D025321:Surgery, Computer-Assisted; D017216:Telemedicine / Q000379:methods*