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Related Experiment Video

Updated: Jun 4, 2026

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes
07:12

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes

Published on: April 21, 2023

Endoscopic modified Lothrop procedure: a radiographic anatomic study.

Collin M Burkart1, Lee A Zimmer

  • 1Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio 45267-0528, USA.

The Laryngoscope
|January 29, 2011
PubMed
Summary
This summary is machine-generated.

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Anatomic measurements of the frontal recess and sinus using computed tomography (CT) scans indicate feasibility for the endoscopic modified Lothrop procedure. However, some patients, particularly women, may have anatomical limitations.

Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Medical Imaging

Background:

  • The endoscopic modified Lothrop procedure is an option for treating frontal sinus disease.
  • Accurate preoperative assessment of frontal sinus and recess anatomy is crucial for surgical planning.

Purpose of the Study:

  • To evaluate the feasibility of the endoscopic modified Lothrop procedure by obtaining radiographic measurements of the frontal recess and sinus.
  • To identify potential anatomical limitations for the procedure based on patient demographics.

Main Methods:

  • A retrospective computed tomography (CT) anatomic study was conducted.
  • CT scans from 97 patients (39 male, 58 female) were analyzed in the sagittal plane.
  • Key parameters measured included nasal beak thickness, distance to skull base, frontal recess dimension, and frontal sinus diameter.

Related Experiment Videos

Last Updated: Jun 4, 2026

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes
07:12

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes

Published on: April 21, 2023

Main Results:

  • Average measurements for nasal beak thickness, beak to skull base distance, frontal recess dimension, and frontal sinus diameter were recorded.
  • Statistically significant differences in accessible dimension and AP diameter of the frontal sinus were observed between male and female patients.
  • Specific average and range values for each measured parameter were detailed.

Conclusions:

  • Preoperative frontal recess and sinus measurements derived from CT scans can assist in patient selection for the endoscopic modified Lothrop procedure.
  • Anatomical factors, particularly in women, may limit the applicability of this endoscopic approach for some individuals.