Longhurst, G; Stone, D; Mahony, N
(2019)
Bilateral reversed palmaris longus muscle: a case report and systematic literature review.
Surg Radiol Anat, 42 (3).
pp. 289-295.
ISSN 1279-8517
https://doi.org/10.1007/s00276-019-02363-z
SGUL Authors: Longhurst, Georga Jane
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Abstract
PURPOSE: We present a case of a bilateral reversed palmaris longus muscle and a systematic review of the literature on this anatomical variation. METHODS: Routine dissection of a 90-year-old male cadaver revealed a rare bilateral reversed palmaris longus. This was documented photographically, and length and relation to anatomical landmarks were recorded. This finding stimulated a systematic review of the literature on the reversed palmaris longus variation, from which measurements were collated and statistical analysis performed to determine the prevalence, average length, relationship to side and sex, and to discuss its clinical and evolutionary implications. RESULTS: The average length of the muscle belly and tendon of reversed palmaris longus was 135 mm and 126 mm, respectively. Statistical analysis revealed no disparity in presentation due to sex and side; however, bilateral reversed palmaris longus has only been reported in males. A high proportion (70.8%) of reversed palmaris longus were discovered in the right upper limb compared to the left. CONCLUSION: Variations in palmaris longus are purported to be as a result of phylogenetic regression. Clinically, patients with this variant may present with pain or swelling of the distal forearm, often as a result of intense physical exertion related to occupation or sport. Clinicians should be aware of this muscle variant as its presence could lead to confusion during tendon allograft harvesting procedures in reconstructive and tendon grafting surgery.
Item Type: | Article | ||||||
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Additional Information: | © The Author(s) 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | ||||||
Keywords: | Anatomical variation, Bilateral, Inverted, Muscle, Palmaris longus, Reverse, Reversed, Palmaris longus, Reversed, Reverse, Inverted, Bilateral, Anatomical variation, Muscle, Anatomy & Morphology, 1116 Medical Physiology | ||||||
SGUL Research Institute / Research Centre: | Academic Structure > Institute of Medical & Biomedical Education (IMBE) Academic Structure > Institute of Medical & Biomedical Education (IMBE) > Centre for Biomedical Education (INMEBE) |
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Journal or Publication Title: | Surg Radiol Anat | ||||||
ISSN: | 1279-8517 | ||||||
Language: | eng | ||||||
Dates: |
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Publisher License: | Creative Commons: Attribution 4.0 | ||||||
PubMed ID: | 31720753 | ||||||
Web of Science ID: | WOS:000495984700001 | ||||||
Go to PubMed abstract | |||||||
URI: | https://openaccess.sgul.ac.uk/id/eprint/111515 | ||||||
Publisher's version: | https://doi.org/10.1007/s00276-019-02363-z |
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