Utilização do tendão do músculo palmar longo em procedimentos cirúrgicos: estudo em cadáveres

Júnior, Luiz Carlos Angelini; Angelini, Felipe Berdelli; Oliveira, Bruna Craveiro de; Soares, Sonia Aparecida; Angelini, Luiz Carlos; Cabral, Richard Haltí

doi:10.1590/s1413-78522012000400007

Cited by 19 publications

(11 citation statements)

References 15 publications

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“…Specifically to modern humans, the average measure of the PL tendon obtained here, that is, 15.06 (±1.75), was different from those reported for other Brazilians cadavers [ 12 ] (11.99 ± 1.52). Apparently, these differences are due to criteria for length measurements of the palmaris longus tendon in both studies.…”

Section: Discussioncontrasting

confidence: 99%

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Morphometric and Statistical Analysis of the Palmaris Longus Muscle in Human and Non-Human Primates

Aversi-Ferreira

Bretas

Maior

et al. 2014

BioMed Research International

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The palmaris longus is considered a phylogenetic degenerate metacarpophalangeal joint flexor muscle in humans, a small vestigial forearm muscle; it is the most variable muscle in humans, showing variation in position, duplication, slips and could be reverted. It is frequently studied in papers about human anatomical variations in cadavers and in vivo, its variation has importance in medical clinic, surgery, radiological analysis, in studies about high-performance athletes, in genetics and anthropologic studies. Most studies about palmaris longus in humans are associated to frequency or case studies, but comparative anatomy in primates and comparative morphometry were not found in scientific literature. Comparative anatomy associated to morphometry of palmaris longus could explain the degeneration observed in this muscle in two of three of the great apes. Hypothetically, the comparison of the relative length of tendons and belly could indicate the pathway of the degeneration of this muscle, that is, the degeneration could be associated to increased tendon length and decreased belly from more primitive primates to those most derivate, that is, great apes to modern humans. In conclusion, in primates, the tendon of the palmaris longus increase from Lemuriformes to modern humans, that is, from arboreal to terrestrial primates and the muscle became weaker and tending to be missing.

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Section: Discussioncontrasting

confidence: 99%

“…This muscle presents significant divergences as to its frequency in different humans groups [2, 7, 9–12]; it can be absent in some individuals of the genera Pan and Gorilla [6], but it is always present in Hylobates , Pongo [9, 10], and Sapajus [13], and its absence has not been reported in other primates.…”

Section: Introductionmentioning

confidence: 99%

Morphometric and Statistical Analysis of the Palmaris Longus Muscle in Human and Non-Human Primates

Aversi-Ferreira

Bretas

Maior

et al. 2014

BioMed Research International

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“…Among vertebrates PL is restricted to mammalian and well developed in species that use load to walk, for exemple: the PL is always present in orangutans, but is variably absent in chimpanzees and gorillas. In human beings the PL is considered by many authors as tensor of the palmar aponeurosis and eventually contributing to carpal flexion (ANGELINI JÚNIOR, ANGELINI, OLIVEIRA et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…Morphogenetically developed and regulated by a HOX gene, the PL is considered an accessory muscle and not essential to the normal function of the flexion of the carpus, because its absence was not associated with loss of grip strength (ANGELINI JÚNIOR, ANGELINI, OLIVEIRA et al, 2012); thus, its tendon is used as a graft in countless surgical procedures (DAVIDSON, 1995;ATIYEH, HASHIM, HAMDAN et al, 1998;NAUGLE and FAUST, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…Although there are countless reports (SCHUURMAN and VAN GILGS, 2000;RAWAT and JOHN, 2003;BABINSKI, VALENTE, SAVEDRA et al, 2008;MURABIT, GNARRA and MOHAMED, 2013) about the unilateral RPL, there are few reports of bilateral RPL. Giunta, Brunner and Wilhelm (1993) cited a rare case of a 21-year-old man suffered while working from symptoms of temporary median nerve compression in both forearms; this was caused by hypertrophy of RPL.…”

Section: Discussionmentioning

confidence: 99%

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Embryological considerations on the bilateral reversed palmaris longus muscle: a case report in human

Heck

Campos

2014

J Morphol Sci

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This study describes a rare case of bilateral reversed palmaris longus muscle. An unusual variation was observed during the male cadaver dissection (60-year-old White). According to the literature, a reversed palmaris longus muscle may cause a compartment syndrome in the wrist area, carpal tunnel, and Guyon's syndrome. Moreover, this particular variation of the reversed palmaris longus muscle is rarely reported and has the potential to cause compression of both the median and ulnar nerves. Thus, the described variation is also useful to the hand surgeon, as the anomalous muscle is an anatomical landmark for operations at this area. Morphological variability and clinical significance are reviewed.

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Morphological variability of the palmaris longus muscle in human fetuses

et al. 2018

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PurposeThe palmaris longus (PL) muscle is characterized by high-morphological variability. It is clinically important as it is routinely harvested for the reconstruction of other tendons. The study characterizes the morphology of the PL in human fetuses and creates a new classification based on its variations that would relate to the spectrum of morphological variability in adults.MethodsEighty spontaneously aborted human foetuses (44 male, 36 female, 160 upper limbs), aged 18–38 weeks of gestation, were examined.ResultsThe palmaris longus muscle was present in 62.5% of fetuses. The absence was bilateral in 26.25%, and unilateral in 22.5%. Nine types of palmaris longus muscles were identified based on the morphology of its insertion (Types I–IX). All types originated on the medial epicondyle of the humerus. The most common type was Type I, which was characterized by insertion to the palmar aponeurosis (52%). The rarest types were Type VII and Type IX (1% each). Type VII was characterized by partial doubling of the muscle belly, which then turned into two separate tendons that inserted together into the palmar aponeurosis. Type IX was characterized by fusion with the flexor carpi ulnaris muscle.ConclusionOur findings concerning morphological variability of the PL in fetuses present a new perspective on the understanding nature of the morphological variation of the PL muscle in adults.List of evidenceBasic Science Study.

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Utilização do tendão do músculo palmar longo em procedimentos cirúrgicos: estudo em cadáveres

Cited by 19 publications

References 15 publications

Morphometric and Statistical Analysis of the Palmaris Longus Muscle in Human and Non-Human Primates

Morphometric and Statistical Analysis of the Palmaris Longus Muscle in Human and Non-Human Primates

Embryological considerations on the bilateral reversed palmaris longus muscle: a case report in human

Morphological variability of the palmaris longus muscle in human fetuses

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