REFERENCES
1. Kozin SH, Zlotolow DA, Abzug JM. Upper limb reconstruction in persons with tetraplegia. In: Abzug JM, Kozin SH, Zlotolow DA, editors. The pediatric upper extremity. New York: Springer; 2015. pp. 735-65.
2. Lam WL, Oh JDH, Johnson EJ, Pertinez SP, Stephens C, Davey MG. Experimental evidence that preaxial polydactyly and forearm radial deficiencies may share a common developmental origin. J Hand Surg Eur Vol 2019;44:43-50.
6. Al-Qattan MM. Preaxial polydactyly of the upper limb viewed as a spectrum of severity of embryonic events. Ann Plast Surg 2013;71:118-24.
7. Wessel LE, Daluiski A, Trehan SK. Polydactyly a review and update of a common congenital hand difference. Curr Opin Pediatr 2020;32:120-4.
8. Tonkin MA. Classification of congenital anomalies of the hand and upper limb. J Hand Surg Am 2015;40:415.
9. Wassel HD. The results of surgery for polydactyly of the thumb. a review. Available from: https://www.unboundmedicine.com/medline/citation/4894526/The_results_of_surgery_for_polydactyly_of_the_thumb__A_review_ [Last accessed on 3 Aug 2023].
10. Zuidam JM, Selles RW, Ananta M, Runia J, Hovius SE. A classification system of radial polydactyly: inclusion of triphalangeal thumb and triplication. J Hand Surg Am 2008;33:373-7.
11. Dijkman RR, van Nieuwenhoven CA, Selles RW, Habenicht R, Hovius SER. A multicenter comparative study of two classification systems for radial polydactyly. Plast Reconstr Surg 2014;134:991-1001.
12. Chung MS, Baek GH, Gong HS, Lee HJ, Kim J, Rhee SH. Radial polydactyly: proposal for a new classification system based on the 159 duplicated thumbs. J Pediatr Orthop 2013;33:190-6.
13. Hu CH, Thompson ER, Agel J, et al. CoULD Registry Study Group. A comparative analysis of 150 thumb polydactyly cases from the CoULD registry using the wassel-flatt, rotterdam, and chung classifications. J Hand Surg Am 2021;46:17-26.
14. Saito S, Tsuge I, Yamanaka H, Morimoto N. Soft tissue abnormalities in Wassel type VI radial polydactyly: a detailed anatomical study. J Hand Surg Eur Vol 2021;46:352-9.
15. Dijkman RR, van Nieuwenhoven CA, Hovius SE, Hülsemann W. Clinical presentation, surgical treatment, and outcome in radial polydactyly. Handchir Mikrochir Plast Chir 2016;48:10-7.
16. Van Wyhe RD, Trost JG, Koshy JC, Pederson WC. The duplicated thumb: a review. Semin Plast Surg 2016;30:181-8.
19. Du M, Jiang L, Wang A, Shi J, Bai G. MR imaging provides practical information for preoperative assessment of radial polydactyly with bifurcation at the metacarpophalangeal joint level. Int J Gen Med 2022;15:2163-9.
20. Saito S, Ueda M, Takahashi N, Kawakatsu M, Suzuki S. Three-dimensional ultrasonography for visualization of muscular anomalies in type VI and VII radial polydactyly. Skeletal Radiol 2016;45:541-7.
21. Cabrera González M, Pérez López LM, Martínez Soto G, Gutierrez-de la Iglesia D. Prognostic value of age and Wassel classification in the reconstruction of thumb duplication. J Child Orthop 2013;7:551-7.
22. Rogers BH, Schmieg SL, Pehnke ME, Shah AS. Evaluation and management of preaxial polydactyly. Curr Rev Musculoskelet Med 2020;13:545-51.
23. Chow ECS, Chan YLC, Ko CW, Ho PC. Treatment of dangling-type thumb polydactyly: suture ligation vs. surgical excision. J Hand Surg Asian Pac Vol 2021;26:351-8.
24. Wolfe SW, Pederson WC, Kozin SH, Cohen MS. Green’s operative hand surgery. Available from: https://books.google.com/books?hl=en&lr=&id=IOVSEAAAQBAJ&oi=fnd&pg=PP1&dq=Deformities+of+the+Thumb.+Green%E2%80%99s+Operative+Hand+Surgery,+ed.+P.W.+Wolfe+SW,+Kozin+SH,+Cohen+MS.+2022,+Philadelphia,+PA:+Elsevier.&ots=eEnOvftijw&sig=tDMveYt9pYBVm8ArfRnev0roiH0#v=onepage&q&f=false [Last accessed on 3 Aug 2023].
25. Siqueira MA, Sterodimas A, Boriani F, Pitanguy I. A 10-year experience with the surgical treatment of radial polydactyly. Ann Ital Chir 2008;79:441-4.
26. Manske PR. Treatment of duplicated thumb using a ligamentous/periosteal flap. J Hand Surg Am 1989;14:728-33.
27. Yao F, Yin C, Yu W, Liu W, Yang G, Shen X. Intraoperative observation of the proper digital nerves in wassel-flatt type IV radial polydactyly. J Hand Surg Am 2022;Online ahead of print:S0363-5023(22)00461.
28. Xu YL, Shen KY, Chen J, Wang ZG. Flexor pollicis longus rebalancing: a modified technique for Wassel IV-D thumb duplication. J Hand Surg Am 2014;39:75-82.e1.
29. Engelhardt TO, Baur EM, Pedross F, Piza-Katzer H. Supporting the collateral ligament complex in radial polydactyly type Wassel IV. J Plast Reconstr Aesthet Surg 2013;66:104-12.
30. Bell B, Butler L, Mills J, Stutz C, Ezaki M, Oishi S. "On-top plasty" for radial polydactyly reconstruction. J Hand Surg Am 2017;42:753.e1-6.
31. Dobyns JH, Lipscomb PR, Cooney WP. Management of thumb duplication. Available from: https://journals.lww.com/clinorthop/abstract/1985/05000/management_of_thumb_duplication.4.aspx [Last accessed on 3 Aug 2023].
32. Kelleher JC, Sullivan JG, Baibak GJ, Dean RK. "On-top plasty" for amputated fingers. Plast Reconstr Surg 1968;42:242-8.
33. Ogino T, Ishii S, Takahata S, Kato H. Long-term results of surgical treatment of thumb polydactyly. J Hand Surg Am 1996;21:478-86.
34. Tonkin MA, Bulstrode NW. The Bilhaut-Cloquet procedure for Wassel types III, IV and VII thumb duplication. J Hand Surg Eur Vol 2007;32:684-93.
35. Baek GH, Gong HS, Chung MS, Oh JH, Lee YH, Lee SK. Modified Bilhaut-Cloquet procedure for Wassel type-II and III polydactyly of the thumb. J Bone Joint Surg Am 2007;89:534-41.
36. Wall LB, Goldfarb CA. Reconstruction for type IV radial polydactyly. J Hand Surg Am 2015;40:1873-6.
37. Gholson JJ, Shah AS, Buckwalter JA 4th, Buckwalter JA 5th. Long-term clinical and radiographic follow-up of preaxial polydactyly reconstruction. J Hand Surg Am 2019;44:244.e1-6.
38. de Almeida CEF. Analysis of surgical results and of residual postoperative deformities in preaxial polydactyly of the hand. J Plast Reconstr Aesthet Surg 2017;70:1420-32.
