An Inexpensive Biomechanical Model to Help Teach and Learn Newer Mandible Reduction Techniques

Author Affiliation
Shantal Tummings, BS Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California
Sierra Garrett, BS Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California
Ja’Neil G. Humphrey, BS Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California
Jasmine Haddad, BS Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California
Jon Roper, MD Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California
Deena I. Bengiamin, MD Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California
Timothy P. Young, MD Loma Linda University School of Medicine, Laboratory for Innovations in Medical Education, Loma Linda, California

Footnotes

Section Editor: Kenneth Whitlow, MD

Full text available through open access at http://escholarship.org/uc/uciem_cpcem

The authors attest that their institution requires neither Institutional Review Board approval nor patient consent for publication of this case report. Documentation on file.

Address for Correspondence: Timothy Young, MD, Loma Linda University Medical Center and Children’s Hospital, Department of Emergency Medicine, 11234 Anderson Street, Room A890A, Loma Linda, Ca. 92354. Email: tpyoung@llu.edu. 7:118 – 120

Submission history: Revision received September 28, 2021; Submitted March 19, 2022; Accepted August 23, 2022

Conflicts of Interest: By the CPC-EM article submission agreement, all authors are required to disclose all affiliations, funding sources and financial or management relationships that could be perceived as potential sources of bias. The authors disclosed none.

REFERENCES

1. Lum VWM, Poh J. Refractory temporomandibular joint dislocation: reduction using the wrist pivot method. Clin Pract Cases Emerg Med. 2017;1(4):380-3.

2. Lowery LE, Beeson MS, Lum KK. The wrist pivot method, a novel technique for temporomandibular joint reduction. J Emerg Med. 2004;27(2):167-70.

3. Chen YC, Chen CT, Lin CH, et al. A safe and effective way for reduction of temporomandibular joint dislocation. Ann Plast Surg. 2007;58(1):105-8.

4. Ardehali MM, Tari N, Bastaninejad SH, et al. Comparison of different approaches to the reduction of anterior temporomandibular joint dislocation: a randomized clinical trial. Int J Oral Maxillofac Surg. 2016;45(8):1009-14.

5. Mellick LB. Pediatric jaw dislocation reduction. Available at: https://www.youtube.com/watch?v=-Zm7ev8LUAA. Accessed March 16, 2022.

SUPPLEMENTARY MATERIAL

 

Trainer explanation of mandible reduction

Image 1
We drilled a hole in the center of the articular fossa (arrow) and one through the condyle, and then secured the condyle with elastic string.

Image 2
The completed mandible reduction trainer.

Image 3
The extraoral reduction technique. On one side, the thumb pushes on the coronoid process while the other hand grasps the angle of the mandible and pulls. The process is repeated on the opposite side for bilateral dislocations.