Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery
Background: The use of extensor indicis proprius (EIP) muscle tendon for tendon grafting and transplantation in the management of hand injuries is common. Anatomical variations of the EIP tendons have been reported with variable prevalence and presentation in different populations worldwide. Knowled...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Translational Research in Anatomy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214854X23000316 |
| _version_ | 1797631001064636416 |
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| author | Saung A Kari Pedzisai Mazengenya Arthur Tsalani Manjatika Tin Moe Nwe Zaw Myo Hein |
| author_facet | Saung A Kari Pedzisai Mazengenya Arthur Tsalani Manjatika Tin Moe Nwe Zaw Myo Hein |
| author_sort | Saung A Kari |
| collection | DOAJ |
| description | Background: The use of extensor indicis proprius (EIP) muscle tendon for tendon grafting and transplantation in the management of hand injuries is common. Anatomical variations of the EIP tendons have been reported with variable prevalence and presentation in different populations worldwide. Knowledge of possible variation patterns is crucial in reconstructive surgery. The current study aims to describe the prevalence of anatomical variations of the EIP in the Burmese population. Methods: A total of 50 cadavers (39 males, and 11 females) were dissected. Both upper limbs of each cadaver were observed. The presence of the EIP, the number of tendons, the origin and insertion of the muscle and its relation with the extensor digitorum communis (EDC) were recorded and variations reported. Results: Of the 100 limbs studied in the 50 cadavers, only 1/100 limb was reported to have an absent EIP muscle and tendon. Of the remaining 99/100 limbs examined, one of them consists of a double tendon, that is, EIP and extensor indicis et medii communis (EIMC) were inserted separately onto the index finger and middle finger respectively on the dorsum of the left hand. Further to this, there is one case in which an extra muscle belly was observed in the EIP tendon, this muscle is commonly known as the extensor digitorum brevis manus muscle. All the EIP variations were observed in the male cadavers only. Conclusion: Of the 50 cadavers studied, 3/100 limbs exhibited EIP variations in the current studied population. Population-specific studies on these variations may aid in a better understanding of the different anatomical patterns of the muscles in the dorsum of the hand. This may lead to improved diagnosis and surgical management of injuries to the dorsum of the hand and for the use of the EIP tendon in surgical grafts and transplantations. |
| first_indexed | 2024-03-11T11:15:55Z |
| format | Article |
| id | doaj.art-dced9ca33074400a8989f0828f97c8ad |
| institution | Directory Open Access Journal |
| issn | 2214-854X |
| language | English |
| last_indexed | 2024-03-11T11:15:55Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Translational Research in Anatomy |
| spelling | doaj.art-dced9ca33074400a8989f0828f97c8ad2023-11-11T04:28:05ZengElsevierTranslational Research in Anatomy2214-854X2023-11-0133100262Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgerySaung A Kari0Pedzisai Mazengenya1Arthur Tsalani Manjatika2Tin Moe Nwe3Zaw Myo Hein4Department of Anatomy, University of Medicine-1, Yangon, MyanmarCenter of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, Ajman University, Ajman, United Arab EmiratesSchool of Life Sciences and Allied Health, Anatomy Division, Kamuzu University of Health Sciences, Blantyre, Malawi; School of Anatomical Sciences, University of the Witwatersrand, Parktown, Johannesburg, South AfricaDepartment of Basic Medical Sciences, Faulty of Medicine and Health Sciences, University Malaysia Sarawak, MalaysiaCenter of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, Ajman University, Ajman, United Arab Emirates; Corresponding author. College of Medicine, Ajman University, Ajman, United Arab Emirates.Background: The use of extensor indicis proprius (EIP) muscle tendon for tendon grafting and transplantation in the management of hand injuries is common. Anatomical variations of the EIP tendons have been reported with variable prevalence and presentation in different populations worldwide. Knowledge of possible variation patterns is crucial in reconstructive surgery. The current study aims to describe the prevalence of anatomical variations of the EIP in the Burmese population. Methods: A total of 50 cadavers (39 males, and 11 females) were dissected. Both upper limbs of each cadaver were observed. The presence of the EIP, the number of tendons, the origin and insertion of the muscle and its relation with the extensor digitorum communis (EDC) were recorded and variations reported. Results: Of the 100 limbs studied in the 50 cadavers, only 1/100 limb was reported to have an absent EIP muscle and tendon. Of the remaining 99/100 limbs examined, one of them consists of a double tendon, that is, EIP and extensor indicis et medii communis (EIMC) were inserted separately onto the index finger and middle finger respectively on the dorsum of the left hand. Further to this, there is one case in which an extra muscle belly was observed in the EIP tendon, this muscle is commonly known as the extensor digitorum brevis manus muscle. All the EIP variations were observed in the male cadavers only. Conclusion: Of the 50 cadavers studied, 3/100 limbs exhibited EIP variations in the current studied population. Population-specific studies on these variations may aid in a better understanding of the different anatomical patterns of the muscles in the dorsum of the hand. This may lead to improved diagnosis and surgical management of injuries to the dorsum of the hand and for the use of the EIP tendon in surgical grafts and transplantations.http://www.sciencedirect.com/science/article/pii/S2214854X23000316Anatomical variationsExtensor indicis propriusExtensor indicis et medii communisExtensor digitorum brevis manusBurmese population |
| spellingShingle | Saung A Kari Pedzisai Mazengenya Arthur Tsalani Manjatika Tin Moe Nwe Zaw Myo Hein Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery Translational Research in Anatomy Anatomical variations Extensor indicis proprius Extensor indicis et medii communis Extensor digitorum brevis manus Burmese population |
| title | Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery |
| title_full | Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery |
| title_fullStr | Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery |
| title_full_unstemmed | Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery |
| title_short | Variations in the extensor indicis proprius muscle in the Burmese population: implications for hand reconstructive surgery |
| title_sort | variations in the extensor indicis proprius muscle in the burmese population implications for hand reconstructive surgery |
| topic | Anatomical variations Extensor indicis proprius Extensor indicis et medii communis Extensor digitorum brevis manus Burmese population |
| url | http://www.sciencedirect.com/science/article/pii/S2214854X23000316 |
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