Preliminary trials of trackerless augmented reality in endoscopic endonasal surgery.

Purpose: We present a novel method for augmented reality in endoscopic endonasal surgery. Our method does not require the use of external tracking devices and can show hidden anatomical structures relevant to the surgical intervention.

Methods: Our method registers a preoperative 3D model of the nasal cavity to an intraoperative 3D model by estimating a scaled-rigid transformation.

A case of cochlear-facial dehiscence revealed after bilateral cochlear implants.

The cochlear implant is an implanted auditory prosthesis that can restore severe and profound hearing loss. About 20% of patients with congenital sensorineural hearing loss have a malformation of the inner ear. These abnormalities must be investigated before a cochlear implant because they can lead to intra and postoperative complications and/or anomalies.

Injected 3T-3D-FLAIR-MRI labyrinthine patterns match with the severity and tonotopic alteration in sudden sensorineural hearing loss.

Purpose: The aim of the study was to assess a correlation between MRI labyrinthine changes detected with IV-gadolinium optimized high-resolution 3D-FLAIR sequences 4 h after injection (OPT4-3DFLAIR) and the type of SSNHL, in terms of frequency alteration and severity.

Methods: This was a prospective monocentric study achieved from July 2019 to December 2020. The inclusion criterion was acute hearing loss of at least 30 dB over three contiguous frequencies occurring within a 72-h period, documented by a pure-tone audiometry (PTA).

Minimally Displaced Distal Radius Fracture Treated with Closed Reduction and Percutaneous Fixation Resulting in an Iatrogenic Galeazzi Lesion.

Galeazzi fracture in skeletally immature patients is a relatively uncommon injury. No previously published case has been associated with an iatrogenic mechanism. Here, we report a case of a 10-year-old boy with a minimally displaced distal radius fracture evolving into a Galeazzi lesion after unnecessary surgical treatment.