Related Experiment Videos
The anatomical basis for mandibulotomy: midline versus paramidline.
Whei-Lin Pan1, Sheng-Po Hao, Yaoh-Shiang Lin
1Department of Dentistry, Chang Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan.
The Laryngoscope
|February 5, 2003
Summary
Paramidline mandibulotomy offers a better surgical approach by utilizing the wider space between the lateral incisor and canine. This method preserves teeth and key muscles, unlike midline mandibulotomy.
Area of Science:
- Oral and Maxillofacial Surgery
- Anatomy
- Oncology
Background:
- Mandibulotomy is a surgical procedure involving bone cutting of the mandible.
- Understanding mandibular anatomy is crucial for optimizing surgical approaches.
- Existing techniques may impact dentition and muscle function.
Purpose of the Study:
- To establish an anatomical foundation for performing mandibulotomy.
- To compare anatomical spaces relevant to midline and paramidline mandibulotomy.
- To inform surgical planning for oral and oropharyngeal cancer resection.
Main Methods:
- Prospective study design.
- Analysis of panoramic radiographs from 50 Taiwanese patients with oral/oropharyngeal carcinomas.
- Measurement of angles and root lengths between mandibular incisors and canines.
Main Results:
- The space between the mandibular lateral incisor and canine is significantly wider than between the central incisors.
- Average canine root length was measured at 16 mm.
- Quantified anatomical differences provide a basis for surgical technique selection.
Conclusions:
- Paramidline mandibulotomy, utilizing the wider interdental space, is a preferred surgical approach.
- This technique aids in preserving the patient's dentition.
- Preservation of genioglossus and geniohyoid muscles is facilitated by paramidline mandibulotomy.