Triceps brachii insertional footprint: Under-estimated complexity
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Authors
Kamineni, Srinath
Pooley, Joseph
Bachoura, Abdo
Yoshida, Ruriko
Cummings, Jason
Subjects
Triceps
tendon
anatomy
distal triceps
footprint
tendon
anatomy
distal triceps
footprint
Advisors
Date of Issue
2022
Date
Publisher
Sage
Language
Abstract
Background: The detailed complexity of triceps brachii insertional footprint continues to challenge surgeons as evidenced
by continued reports of triceps-associated complications following elbow procedures. The purpose of this
study is to describe the three-dimensional footprint of the triceps brachii at its olecranon insertion at the elbow.
Methods: 22 cadaveric elbows were dissected leaving only the distal insertion of the triceps intact. The insertion was
defined and probed with a three-dimensional digitizer to create a digital three-dimensional footprint allowing width,
height, and surface area of the footprint to be recorded relative to the bare area. The insertional soft tissues of tendon
versus muscle along with the shape of the footprints were qualitatively described.
Results: The mean width and surface area of the lateral segment was greater in males than in females (30.07 mm vs.
24.37 mm, p = 0.0339 and 282.1 mm vs. 211. 56 mm, p = 0.0181, respectively). No other statistically significant differences
between the sexes were noted. The triceps insertional footprint was “crescent-shaped” and consisted of three
regions: central tendon, medial muscular extension, and lateral muscular extension.
Discussion: These findings can help explain the importance of avoiding these muscular structures during triceps-off
approaches and provides the framework for future clinical studies.
Clinical Relevance: Basic Science, anatomy study, cadaver dissection.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1177/17585732221135633
Series/Report No
Department
Operations Research (OR)
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
9 p.
Citation
Kamineni, Srinath, et al. "Triceps brachii insertional footprint: Under-estimated complexity." Shoulder & Elbow (2022): 17585732221135633.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States