Bilateral reversed palmaris longus muscle: a case report and systematic literature review.
Surg Radiol Anat
; 42(3): 289-295, 2020 Mar.
Article
em En
| MEDLINE
| ID: mdl-31720753
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.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tendões
/
Músculo Esquelético
/
Deformidades Congênitas das Extremidades Superiores
/
Variação Anatômica
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Antebraço
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
/
Systematic_reviews
Limite:
Aged80
/
Humans
/
Male
Idioma:
En
Revista:
Surg Radiol Anat
Assunto da revista:
ANATOMIA
/
RADIOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Reino Unido