AI Article Synopsis
- Previous studies on the triceps brachii muscle tendon (TBMT) have debated whether it has one or two insertions on the ulna, prompting an anatomical examination and MRI review of the elbow.
- A total of 41 elbows were dissected to study the TBMT insertion, and MRI analysis was conducted to visualize the pre-tricipital space near its insertion site.
- The findings revealed a consistent pre-tricipital space in the anatomy, confirmed by MRI, with no significant differences between elbow positions or sides, emphasizing the importance of understanding this structure for accurate diagnosis and treatment.
Article Abstract
Purpose: Previous studies have questioned whether the triceps brachii muscle tendon (TBMT) has a double or single insertion on the ulna. Aiming to provide an answer, we describe the anatomy of the TBMT and review a magnetic resonance imaging (MRI) series of the elbow.
Methods: Forty-one elbows were dissected to assess the details of the triceps brachii insertion. Elbow plastination slices were analyzed to determine whether there was a space on the TBMT. Magnetic resonance imaging from the records of the authors were also obtained to demonstrate the appearance of the pre-tricipital space on MRI.
Results: A virtual space on the medial aspect near the TBTM insertion site in the olecranon was consistently found on anatomic dissections. It was a distal pre-tricipital space. Magnetic resonance imaging demonstrated the appearance of the pre-tricipital space on MRI, and its extension was measured longitudinally either in elbow flexion or extension. There was no statistically significant difference between the measurements of this space in the right and left elbows or between flexion and extension (p > 0.05). The coefficient of variation was <10% for all measurements.
Conclusion: Knowledge of this structure may be essential to avoid incorrect diagnosis and unnecessary therapeutic interventions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7709896 | PMC |
| http://dx.doi.org/10.1590/s0102-865020200100000007 | DOI Listing |
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