Prague Med. Rep. 2024, 125, 163-171

https://doi.org/10.14712/23362936.2024.16

Accessory Flexor Carpi Ulnaris Muscle in Humans: A Rare Anatomical Case with Clinical Considerations

Dibakar Borthakur, Arthi Ganapathy, Mohammed Ahmed Ansari, Ritu Sehgal

Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India

Received November 28, 2023
Accepted May 7, 2024

References

1. Alvin, M., Alan, N., Leone, J., Fredieu, J. R. (2011) A unilateral accessory flexor carpi ulnaris muscle observed during cadaveric dissection. Clin. Anat. 24(8), 971–973. <https://doi.org/10.1002/ca.21234>
2. Al-Qattan, M. M., Kozin, S. H. (2013) Update on embryology of the upper limb. J. Hand Surg. Am. 38(9), 1835–1844. <https://doi.org/10.1016/j.jhsa.2013.03.018>
3. Ang, G. G., Rozen, W. M., Vally, F., Eizenberg, N., Grinsell, D. (2010) Anomalies of the flexor carpi ulnaris: Clinical case report and cadaveric study. Clin. Anat. 23(4), 427–430. <https://doi.org/10.1002/ca.20952>
4. Arnold, G., Zech, M. (1977) An accessory muscle and additional variants of the forearm. Handchirurgie 9(3), 135–136.
5. Bhardwaj, P., Bhandari, L., Sabapathy, S. R. (2013) Supernumerary flexor carpi ulnaris – Case report and review. Hand Surg. 18(03), 393–397. <https://doi.org/10.1142/S0218810413720222>
6. Buckingham, M., Bajard, L., Chang, T., Daubas, P., Hadchouel, J., Meilhac, S., Montarras, D., Rocancourt, D., Relaix, F. (2003) The formation of skeletal muscle: From somite to limb. J. Anat. 202(1), 59–68. <https://doi.org/10.1046/j.1469-7580.2003.00139.x>
7. Campos, D., Nazer, M. B., Bartholdy, L. M., Souza, P. L. (2010) Accessory flexor carpi ulnaris muscle: A case report of a rare variation in human. J. Morphol. Sci. 27(1), 30–31.
8. Carlson, B. M. (2014) Human Embryology and Developmental Biology, 5th Edition. Elsevier/Saunders, Philadelphia.
9. Chong, S. J., Al-Ani, S., Pinto, C., Peat, B. (2009) Bilateral flexor carpi radialis brevis and unilateral flexor carpi ulnaris brevis muscle: Case report. J. Hand Surg. Am. 34(10), 1868–1871. <https://doi.org/10.1016/j.jhsa.2009.08.002>
10. Çıftçıoğlu, E., Kopuz, C., Çorumlu, U., Demır, M. T. (2011) Accessory muscle in the forearm: A clinical and embryological approach. Anat. Cell Biol. 44(2), 160–163. <https://doi.org/10.5115/acb.2011.44.2.160>
11. Iliev, A., Georgiev, G. P., Landzhov, B. (2016) A rare case of bilateral flexor carpi ulnaris variation: Anatomical and clinical considerations and literature review. Rev. Arg. Anat. Clin. 8(2), 98–103. <https://doi.org/10.31051/1852.8023.v8.n2.14512>
12. Kunc, V., Stulpa, M., Feigl, G., Kachlik, D. (2019) Accessory flexor carpi ulnaris muscle with associated anterior interosseous artery variation: Case report with the definition of a new type and review of concomitant variants. Surg. Radiol. Anat. 41, 1315–1318. <https://doi.org/10.1007/s00276-019-02261-4>
13. Kwak, K. W., Kim, M. S., Chang, C. H., Kim, S. H. (2011) Ulnar nerve compression in Guyon’s canal by ganglion cyst. J. Korean Neurosurg. Soc. 49(2), 139. <https://doi.org/10.3340/jkns.2011.49.2.139>
14. López Milena, G., Ruiz Santiago, F., Chamorro Santos, C., Cañadillas Barea, L. (2001) Forearm soft tissue mass caused by an accessory muscle. Eur. Radiol. 11, 1487–1489. <https://doi.org/10.1007/s003300100827>
15. Mori, M. (1964) Statistics on the musculature of the Japanese. Okajimas Folia Anat. Jpn. 40(3), 195–300. <https://doi.org/10.2535/ofaj1936.40.3_195>
16. Niumsawatt, V., Soliman, B. A., Rozen, W. M. (2013) The aberrant flexor carpi ulnaris and its clinical implications. J. Plast. Reconstr. Aesthet. Surg. 66(6), e172–e174. <https://doi.org/10.1016/j.bjps.2013.01.039>
17. O’Hara, J. J., Stone, J. H. (1988) Ulnar neuropathy at the wrist associated with aberrant flexor carpi ulnaris insertion. J. Hand Surg. Am. 13(3), 370–372. <https://doi.org/10.1016/S0363-5023(88)80011-X>
18. Paget, J., Patel, N., Manushakian, J. (2013) Ulnar nerve compression in Guyon’s canal: MRI does not always have the answer. J. Surg. Case Rep. 2013(1), rjs043.
19. Pires, L. A., Machado, G. D., Fernandes, R. M., Manaia, J. H., Champs, J. F., Babinski, M. A. (2019) Notes on the accessory flexor carpi ulnaris muscle: A rare supernumerary variation. J. Morphol. Sci. 36(02), 138–140.
20. Pressney, I., Upadhyay, B., Dewlett, S., Khoo, M., Fotiadou, A., Saifuddin, A. (2020) Accessory flexor carpi ulnaris: Case report and review of the literature. BJR Case Rep. 6(3), 20200010.
21. Rau, C. L., Yen, T. H., Wu, L. C., Huang, Y. Y., Jaw, F. S., Liou, T. H. (2014) Neglected ruptured flexor carpi ulnaris tendon mimics a soft tissue tumor in the wrist. Am. J. Phys. Med. Rehabil. 93(4), 355–358. <https://doi.org/10.1097/PHM.0000000000000030>
22. Sakthivel, S., Verma, S. (2017) Accessory flexor carpi ulnaris and bilaterally variant vascular anatomy of upper limb: An unusual presentation. Int. J. Appl. Basic Med. Res. 7(2), 143–145. <https://doi.org/10.4103/ijabmr.IJABMR_326_16>
23. Sawant, S. P. (2013) A case report on an additional muscle slip of flexor carpi ulnaris with variant ulnar artery and ulnar nerve in the forearm. World Res. J. Cardiol. 1(1), 7–9.
24. Sookur, P. A., Naraghi, A. M., Bleakney, R. R., Jalan, R., Chan, O., White, L. M. (2008) Accessory muscles: Anatomy, symptoms, and radiologic evaluation. Radiographics 28(2), 481–499. <https://doi.org/10.1148/rg.282075064>
25. Tubbs, R. S., Shoja, M. M., Loukas, M. (2016) Bergman’s Comprehensive Encyclopedia of Human Anatomic Variation. John Wiley and Sons Inc., Hoboken.
26. Vollala, V., Kumar, P. (2006) Additional belly of flexor carpi ulnaris muscle found in a South Indian male cadaver. Internet J. Orthop. Surg. 5(1), 5–8.
27. Wang, C. K., Ng, C. Y. (2021) Accessory flexor carpi ulnaris: A rare cause of distal ulnar nerve compression. J. Hand Surg. Eur. Vol. 46(2), 197–199. <https://doi.org/10.1177/1753193420943050>
28. Watts, A. C. (2021) Elbow and forearm. In: Gray’s Anatomy: The Anatomical Basis of Clinical Practice, 42nd Edition. Standring, S., Elsevier, Amsterdam.
29. Yasen, S. (2012) Acute calcific tendinitis of the flexor carpi ulnaris causing acute compressive neuropathy of the ulnar nerve: A case report. J. Orthop. Surg. (Hong Kong) 20(3), 414–416. <https://doi.org/10.1177/230949901202000333>
30. Yonguç, G. N., Cirpan, S., Sayhan, S., Eyüboğlu, C., Güvençer, M. (2018) A variation of flexor carpi ulnaris muscle: A case report. J. Basic Clin. Health Sci. 2, 57–59. <https://doi.org/10.30621/jbachs.2018.320>
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