Abstract
Palmaris longus (PL) is the most superficial flexor muscle of the wrist. Agenesis of this muscle does not result in disability but its presence plays a significant role in reconstructive plastic surgery as a donor tendon for grafting. The awareness of the incidence of PL occurrence in a population is therefore desirable. In the present study, 457 multiracial medical students (220 Malays, 198 Chinese and 39 Indians) of University of Malaya, Malaysia, ages between 18 to 22 years, were examined for the presence or absence of the PL tendon using Schaeffer’s test. This study demonstrated the overall difference in occurrence rate of PL among the multiracial students which indirectly represent its overall pattern in Malaysian population, as the students originate from various states of this country. The data collected were then analyzed using non-parametric test to determine pattern of occurrence and incidence of agenesis of this muscle with regard to ethnicity, laterality, and gender. The highest incidence of unilateral and bilateral PL agenesis was observed in Indian students despite being the smallest race among the three groups studied. This study contradicts with previous findings that concluded Malays to be the group with the highest incidence of unilateral PL agenesis. This contradiction therefore justifies the need to construct a larger cohort study, which covers more diverse ethnic groups in Malaysia including the indigenous groups in Sabah and Sarawak to obtain the true incidence rate of PL agenesis in Malaysia.
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Jeyaseelan N, Lin WM, Kadir SYA, Brandon GJF, Azizi AB, Kalaji SM, Singh HST, Ramaiah Y, Retnabrabagaran SP (2015) Variations in the absence of the palmaris longus muscle in a multiethnic population of Malaysia: an epidemiological study. IOSR J Dent Med Sci 14(10):2279–2861. https://doi.org/10.9790/0853-14104117122
Moore KL, Dalley AF, Agur AM (2013) Clinically oriented anatomy. Lippincott Williams & Wilkins
Snell RS (2011) Clinical anatomy by regions. Lippincott Williams & Wilkins
Enye L, Saalu L, Osinubi A (2010) The prevalence of agenesis of Palmaris longus muscle among students in two Lagos-Based Medical schools. Int J Morphol 28(3):849–854
Nasiri E, Pourghasem M, Moladoust H (2016) The prevalence of absence of the palmaris longus muscle tendon in the North of Iran: a comparative study. Iran Red Crescent Med J 18(3)
Ioannis D, Anastasios K, Konstantinos N, Lazaros K, Georgios N (2015) Palmaris longus muscle’s prevalence in different nations and interesting anatomical variations: review of the literature. J Clin Med Res 7(11):825
Sebastin S, Puhaindran M, Lim A, Lim I, Bee W (2005) The prevalence of absence of the palmaris longus–a study in a Chinese population and a review of the literature. J Hand Surg 30(5):525–527
Soltani AM, Peric M, Francis CS, Nguyen T-TJ, Chan LS, Ghiassi A, Stevanovic MV, Wong AK (2012) The variation in the absence of the palmaris longus in a multiethnic population of the United States: an epidemiological study Plast Surg Int:2012
Hussain FN, Hasan T (2012) Prevalence of congenital absence of palmaris longus tendon in young Jizani population of Saudi Arabia: a cross sectional study. Pakistan J Med Sci
Sankar KD, Bhanu PS, John SP (2011) Incidence of agenesis of palmaris longus in the Andhra population of India. Indian J Plast Surg: Off Publ Assoc Plast Surg India 44(1):134
Thompson N, Mockford B, Cran G (2001) Absence of the palmaris longus muscle: a population study. Ulst Med J 70(1):22
Roohi S, Choon-Sian L, Tan G, Naicker A, Med Rehab M (2007) A study on the absence of palmaris longus in a multiracial population. Malays Orthop J 1(1):26–28
Yong MW, Yusof N, Rampal L, Arumugam M (2017) Prevalence of absence of palmaris longus and its association with gender, hand dominance and absence of FDS tendon to little finger among malay population. J Hand Surg (Asian-Pacific Volume) 22(04):484–489
Pękala PA, Henry BM, Pękala JR, Skinningsrud B, Walocha JA, Bonczar M, Tomaszewski KA (2017) Congenital absence of the palmaris longus muscle: a meta-analysis comparing cadaveric and functional studies. J Plast Reconstr Aesthet Surg 70(12):1715–1724
Thompson J, McBatts J, Danforth CH (1921) Hereditary and racial variation in the musculus palmaris longus. Am J Phys Anthropol 4(2):205–218
Wehbe MA (1992) Tendon graft donor sites. J Hand surg 17(6):1130–1132
Thidar AM, Myint TT, Naing DKS, Mustapha ZA (2013) Palmaris longus agenesis (PLA) among Dusun & Bajau ethnic groups of Northern Borneo. Int J Collab Res Intern Med Public Health 5(6):386
Fowlie C, Fuller C, Pratten MK (2012) Assessment of the presence/absence of the palmaris longus muscle in different sports, and elite and non-elite sport populations. Physiotherapy 98(2):138–142
Sater MS, Dharap AS, Abu-Hijleh MF (2010) The prevalence of absence of the palmaris longus muscle in the Bahraini population. Clin Anat 23(8):956–961
Zeybek A, Gürünlüoglu R, Çavdar S, Bayramiçli M (1998) A clinical reminder: a palmaris longus muscle variation. Ann Plast Surg 41(2):224–225
Getzmann JM, Schweizer A (2018) Surgical resection of a reversed palmaris longus muscle causing chronic exertional compartment syndrome in a competitive swimmer: a case report. Orthop J Sports Med 6(5):2325967118769615
Mugalur A, Shahane SM, Samant A, Pathak AC, Patil A, Reddy R (2015) Anatomic variation of palmaris longus and flexor digitorum superficialis of little finger in Indian population. SICOT-J 1
Venter G, Van Schoor A-N, Bosman MC (2014) Degenerative trends of the palmaris longus muscle in a South African population. Clin Anat 27(2):222–226
Malaysia DoS (2018) Population and demography. https://www.dosm.gov.my/v1/index.php?r=column/cone&menu_id=Nk1JZnJBMm1TdmRFS0xaTXZnanIrQT09. Accessed 13th September 2018 2018
Agarwal P (2010) Absence of the palmaris longus tendon in Indian population. Indian J Orthop 44(2):212–215
Capdarest-Arest N, Gonzalez JP, Türker T (2014) Hypotheses for ongoing evolution of muscles of the upper extremity. Med Hypotheses 82(4):452–456
Iqbal S, Iqbal R, Iqbal F (2015) A bitendinous palmaris longus: aberrant insertions and its clinical impact-a case report. J Clin Diagn Res 9(5):AD03–AD05
Bosch T, Hanna T, Fercho K, Baugh L (2018) Behavioral performance and visual strategies during skill acquisition using a novel tool use motor learning task. Sci Rep 8(1):13755
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The study conception and design were contributed by Normadiah M Kassim and Siti Rosmani Md Zin. Material preparation and data collection were performed by Siti Rosmani Md Zin, Intan Suhana Zulkafli, Rasheeda Mohd Zamin, and Muhammad Amri Salim. The data was analyzed by Intan Suhana Zulkafli and Mahmoud Danaee. The first draft of the manuscript was written by Siti Rosmani Md Zin, Intan Suhana Zulkafli, and Rasheeda Mohd Zamin. All authors read and approved the final manuscript.
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Kassim, N.M., Zulkafli, I.S., Zamin, R.M. et al. The Incidence of Agenesis of Palmaris Longus Muscle Among Multiracial Medical Students of University Malaya, Malaysia . Indian J Surg 82, 486–491 (2020). https://doi.org/10.1007/s12262-019-02026-8
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DOI: https://doi.org/10.1007/s12262-019-02026-8