1. Staheli LT, Chew DE, Corbett M. The longitudinal arch. A survey of eight hundred and eighty-two feet in normal children and adults. J Bone Joint Surg Am. 1987; 69:426–428.
2. Harris RI, Beath T. Hypermobile flat-foot with short tendo achillis. J Bone Joint Surg Am. 1948; 30:116–140.
Article
3. Davids JR, Gibson TW, Pugh LI. Quantitative segmental analysis of weight-bearing radiographs of the foot and ankle for children: normal alignment. J Pediatr Orthop. 2005; 25:769–776.
4. Vanderwilde R, Staheli LT, Chew DE, Malagon V. Measurements on radiographs of the foot in normal infants and children. J Bone Joint Surg Am. 1988; 70:407–415.
Article
5. Park MS, Kwon SS, Lee SY, Lee KM, Kim TG, Chung CY. Spontaneous improvement of radiographic indices for idiopathic planovalgus with age. J Bone Joint Surg Am. 2013; 95:e193(1-8).
Article
6. Park H, Hwang JH, Seo JO, Kim HW. The relationship between accessory navicular and flat foot: a radiologic study. J Pediatr Orthop. 2015; 35:739–745.
7. Bok SK, Kim BO, Lim JH, Ahn SY. Effects of custom-made rigid foot orthosis on pes planus in children over 6 years old. Ann Rehabil Med. 2014; 38:369–375.
Article
8. Bordelon RL. Correction of hypermobile flatfoot in children by molded insert. Foot Ankle. 1980; 1:143–150.
Article
9. Whitford D, Esterman A. A randomized controlled trial of two types of in-shoe orthoses in children with flexible excess pronation of the feet. Foot Ankle Int. 2007; 28:715–723.
Article
10. Wenger DR, Mauldin D, Speck G, Morgan D, Lieber RL. Corrective shoes and inserts as treatment for flexible flatfoot in infants and children. J Bone Joint Surg Am. 1989; 71:800–810.
Article
11. Evans AM, Rome K. A Cochrane review of the evidence for non-surgical interventions for flexible pediatric flat feet. Eur J Phys Rehabil Med. 2011; 47:69–89.
12. Bettmann E. The treatment of flat-foot by means of exercise. J Bone Joint Surg Am. 1937; 19:821–825.
13. Mann R, Inman VT. Phasic activity of intrinsic muscles of the foot. J Bone Joint Surg Am. 1964; 46:469–481.
Article
14. Mosca VS. Flexible flatfoot in children and adolescents. J Child Orthop. 2010; 4:107–121.
Article
15. Kelikian A, Mosca V, Schoenhaus HD, Winson I, Weil L Jr. When to operate on pediatric flatfoot. Foot Ankle Spec. 2011; 4:112–119.
Article
16. Bouchard M, Mosca VS. Flatfoot deformity in children and adolescents: surgical indications and management. J Am Acad Orthop Surg. 2014; 22:623–632.
17. Haraldsson S. Operative treatment of pes planovalgus staticus juvenilis. Preliminary communication. Acta Orthop Scand. 1962; 32:492–498.
18. De Pellegrin M, Moharamzadeh D, Strobl WM, Biedermann R, Tschauner C, Wirth T. Subtalar extra-articular screw arthroereisis (SESA) for the treatment of flexible flatfoot in children. J Child Orthop. 2014; 8:479–487.
Article
19. Nelson SC, Haycock DM, Little ER. Flexible flatfoot treatment with arthroereisis: radiographic improvement and child health survey analysis. J Foot Ankle Surg. 2004; 43:144–155.
Article
20. Jay RM, Din N. Correcting pediatric flatfoot with subtalar arthroereisis and gastrocnemius recession: a retrospective study. Foot Ankle Spec. 2013; 6:101–107.
21. Lui TH. Spontaneous subtalar fusion: an irreversible complication of subtalar arthroereisis. J Foot Ankle Surg. 2014; 53:652–656.
Article
22. Shah NS, Needleman RL, Bokhari O, Buzas D. 2013 subtalar arthroereisis survey: the current practice patterns of members of the AOFAS. Foot Ankle Spec. 2015; 8:180–185.
23. Pavone V, Costarella L, Testa G, Conte G, Riccioli M, Sessa G. Calcaneo-stop procedure in the treatment of the juvenile symptomatic flatfoot. J Foot Ankle Surg. 2013; 52:444–447.
Article
24. Usuelli FG, Montrasio UA. The calcaneo-stop procedure. Foot Ankle Clin. 2012; 17:183–194.
Article
25. Jerosch J, Schunck J, Abdel-Aziz H. The stop screw technique: a simple and reliable method in treating flexible flatfoot in children. Foot Ankle Surg. 2009; 15:174–178.
26. Evans D. Calcaneo-valgus deformity. J Bone Joint Surg Br. 1975; 57:270–278.
Article
27. Mosca VS. Calcaneal lengthening for valgus deformity of the hindfoot. Results in children who had severe, symptomatic flatfoot and skewfoot. J Bone Joint Surg Am. 1995; 77:500–512.
Article
28. Phillips GE. A review of elongation of os calcis for flat feet. J Bone Joint Surg Br. 1983; 65:15–18.
Article
29. Rathjen KE, Mubarak SJ. Calcaneal-cuboid-cuneiform osteotomy for the correction of valgus foot deformities in children. J Pediatr Orthop. 1998; 18:775–782.
Article
30. Moraleda L, Salcedo M, Bastrom TP, Wenger DR, Albiñana J, Mubarak SJ. Comparison of the calcaneo-cuboid-cuneiform osteotomies and the calcaneal lengthening osteotomy in the surgical treatment of symptomatic flexible flatfoot. J Pediatr Orthop. 2012; 32:821–829.
Article
31. Kim JR, Shin SJ, Wang SI, Kang SM. Comparison of lateral opening wedge calcaneal osteotomy and medial calcaneal sliding-opening wedge cuboid-closing wedge cuneiform osteotomy for correction of planovalgus foot deformity in children. J Foot Ankle Surg. 2013; 52:162–166.
Article
32. Kim JR, Park CI, Moon YJ, Wang SI, Kwon KS. Concomitant calcaneo-cuboid-cuneiform osteotomies and the modified Kidner procedure for severe flatfoot associated with symptomatic accessory navicular in children and adolescents. J Orthop Surg Res. 2014; 9:131.
Article
33. Hoke M. An operation for the correction of extremely relaxed flat feet. J Bone Joint Surg Am. 1931; 13:773–783.
34. Seymour N. The late results of naviculo-cuneiform fusion. J Bone Joint Surg Br. 1967; 49:558–559.
Article
35. Crego CH Jr, Ford LT. An end-result of various operative procedures for correcting flat feet in children. J Bone Joint Surg Am. 1952; 34:183–195.