Anatomic variation of the palmaris long us muscle: A study using the Anatomage Table

Background: The palmaris longus muscle, located in the superficial anterior compartment of the forearm, plays a crucial role in wrist flexion.
Objective: This study aimed to investigate the anatomical variation (presence or absence) of the palmaris longus using the Anatomage Table 10.0, a cutting-edge virtual dissection tool.
Method: The research was conducted at the University of Global Health Equity's simula- tion laboratory in Rwanda from June 10 to June 15, 2024. Five cadavers (2 female, 3 male) with varying resolutions were used to examine the muscle's anatomy. Prior to data collection, instructors received training, and a pilot study ensured the reliability and valid- ity of the research. Virtual dissection and labeling of the palmaris longus muscle and cor- responding nerves were performed, while preserving key anatomical structures.
Result: The study revealed a bilateral absence of the palmaris longus muscle in one cadav- er.
Conclusion: Our findings on palmaris longus muscle variability highlight the significance of anatomical variations in treatment outcomes and patient care, contributing to the grow- ing understanding of their clinical implications. This variability is crucial for surgeons and clinicians to consider when performing forearm surgeries and diagnosing conditions like carpal tunnel syndrome.