Highlights & Basics
- Rickets is deficient mineralization at the growth plate of long bones, resulting in faltering growth. If the underlying condition is not treated, bone deformity occurs, typically causing bowed legs and thickening of the ends of long bones.
- Rickets only occurs in growing children before fusion of the epiphyses, and typically affects the wrists, knees, and costochondral junctions.
- Rickets occurs primarily as a result of a nutritional deficiency of vitamin D, but can be associated with nutritional deficiencies of calcium or phosphorus. Hypophosphatemic rickets is a common genetic cause of rickets.
- The mainstay of treatment is to correct vitamin D deficiency and to ensure adequate calcium intake.
- Vitamin D deficient rickets can be prevented in many cases by ensuring that children and pregnant women have sufficient vitamin D and calcium intake.
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
Images
Malnutrition manifested as rickets. Note the bowed legs and enlarged right wrist
Malnutrition manifested as rickets. Note the bowed legs and knees
Right wrist of a patient with vitamin D deficient rickets before treatment. His right wrist x-ray showed sclerotic and widened end plates of the radius and ulna (arrows)
Right wrist of a patient with vitamin D deficient rickets after treatment (arrows)
Bony changes (arrows) before (bottom panels) and after (top panel) treatment of rickets
Citations
American College of Obstetricians and Gynecologists. ACOG committee opinion no. 495: vitamin D: screening and supplementation during pregnancy. Jul 2011 [internet publication].[Full Text]
Munns CF, Shaw N, Kiely M, et al. Global consensus recommendations on prevention and management of nutritional rickets. J Clin Endocrinol Metab. 2016 Feb;101(2):394-415.[Abstract][Full Text]
1. Pettifor JM. Rickets and vitamin D deficiency in children and adolescents. Endocrinol Metab Clin North Am. 2005 Sep;34(3):537-53, vii.[Abstract]
2. Pitt MJ. Rickets and osteomalacia are still around. Radiol Clin North Am. 1991 Jan;29(1):97-118.[Abstract]
3. Elder CJ, Bishop NJ. Rickets. Lancet. 2014 May 10;383(9929):1665-76.[Abstract]
4. Nield LS, Mahajan P, Joshi A, et al. Rickets: not a disease of the past. Am Fam Physician. 2006 Aug 15;74(4):619-26.[Abstract][Full Text]
5. Chesney RW. Bone structure, growth, and hormonal regulation. In: Behrman RE, Kliegman RM, Jenson HB, eds. Nelson textbook of pediatrics, 17th ed. Philadelphia, PA: Saunders; 2004.
6. Alizadeh Naderi AS, Reilly RF. Hereditary disorders of renal phosphate wasting. Nat Rev Nephrol. 2010 Nov;6(11):657-65.[Abstract]
7. Beck-Nielsen SS, Brusgaard K, Rasmussen LM, et al. Phenotype presentation of hypophosphatemic rickets in adults. Calcif Tissue Int. 2010 Aug;87(2):108-19.[Abstract]
8. Thacher TD, Fischer PR, Tebben PJ, et al. Increasing incidence of nutritional rickets: a population-based study in Olmsted County, Minnesota. Mayo Clin Proc. 2013 Feb;88(2):176-83.[Abstract]
9. Weisberg P, Scanlon KS, Li R, et al. Nutritional rickets among children in the United States: review of cases reported between 1986 and 2003. Am J Clin Nutr. 2004 Dec;80(6 Suppl):1697S-705S.[Abstract][Full Text]
10. Julies P, Lynn RM, Pall K, et al. Nutritional rickets under 16 years: UK surveillance results. Arch Dis Child. 2020 Jun;105(6):587-92.[Abstract]
11. World Health Organization. Nutritional rickets: a review of disease burden, causes, diagnosis, prevention and treatment. November 2019 [internet publication].[Full Text]
12. Holick MF. Resurrection of vitamin D deficiency and rickets. J Clin Invest. 2006 Aug;116(8):2062-72.[Abstract][Full Text]
13. Gupta P, Dabas A, Seth A, et, al. Indian Academy of Pediatrics revised (2021) guidelines on prevention and treatment of vitamin D deficiency and rickets. Indian Pediatr. 2022 Feb 15;59(2):142-58.[Abstract][Full Text]
14. Diehl JW, Chiu MW. Effects of ambient sunlight and photoprotection on vitamin D status. Dermatol Ther. 2010 Jan-Feb;23(1):48-60.[Abstract]
15. Rafaelsen S, Johansson S, Ræder H, et al. Hereditary hypophosphatemia in Norway: a retrospective population-based study of genotypes, phenotypes, and treatment complications. Eur J Endocrinol. 2016 Feb;174(2):125-36.[Abstract][Full Text]
16. Bandeira F, Griz L, Dreyer P, et al. Vitamin D deficiency: a global perspective. Arq Bras Endocrinol Metabol. 2006 Aug;50(4):640-6.[Abstract][Full Text]
17. Prié D, Friedlander G. Genetic disorders of renal phosphate transport. N Engl J Med. 2010 Jun 24;362(25):2399-409.[Abstract]
18. Chanchlani R, Nemer P, Sinha R, et al. An overview of rickets in children. Kidney Int Rep. 2020 Jul;5(7):980-90.[Abstract][Full Text]
19. American College of Obstetricians and Gynecologists. ACOG committee opinion no. 495: vitamin D: screening and supplementation during pregnancy. Jul 2011 [internet publication].[Full Text]
20. Tan ML, Abrams SA, Osborn DA. Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health. Cochrane Database Syst Rev. 2020 Dec 11;12:CD013046.[Abstract][Full Text]
21. Ross AC, Manson JE, Abrams SA, et al. The 2011 report on dietary reference intakes for calcium and vitamin D from the Institute of Medicine: what clinicians need to know. J Clin Endocrinol Metab. 2011 Jan;96(1):53-8.[Abstract]
22. Palacios C. The role of nutrients in bone health, from A to Z. Crit Rev Food Sci Nutr. 2006;46(8):621-8.[Abstract]
23. Dobrescu MO, Garcia AC, Robert M. Rickets. CMAJ. 2006 Jun 6;174(12):1710.[Abstract][Full Text]
24. Payne RB. Renal tubular reabsorption of phosphate (TmP/GFR): indications and interpretation. Ann Clin Biochem. 1998 Mar;35(Pt 2):201-6.[Abstract]
25. Carpenter TO, Imel EA, Holm IA, et al. A clinician's guide to X-linked hypophosphatemia. J Bone Miner Res. 2011 Jul;26(7):1381-8. [Erratum in: J Bone Miner Res. 2015 Feb;30(2):394.][Abstract][Full Text]
26. Munns CF, Shaw N, Kiely M, et al. Global consensus recommendations on prevention and management of nutritional rickets. J Clin Endocrinol Metab. 2016 Feb;101(2):394-415.[Abstract][Full Text]
27. Drezner MK. Osteomalacia and rickets. In: Goldman L, Ausiello D, eds. Cecil textbook of medicine, 22nd ed. Philadelphia, PA: Saunders Publishing; 2004:1555-62.
28. Haffner D, Emma F, Eastwood DM, et al. Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia. Nat Rev Nephrol. 2019 Jul;15(7):435-55.[Abstract][Full Text]
29. Imel EA, Glorieux FH, Whyte MP, et al. Burosumab versus conventional therapy in children with X-linked hypophosphataemia: a randomised, active-controlled, open-label, phase 3 trial. Lancet. 2019 Jun 15;393(10189):2416-27.[Abstract]
30. Carpenter TO, Imel EA, Ruppe MD, et al. Randomized trial of the anti-FGF23 antibody KRN23 in X-linked hypophosphatemia. J Clin Invest. 2014 Apr;124(4):1587-97.[Abstract][Full Text]
31. Zhang X, Imel EA, Ruppe MD, et al. Pharmacokinetics and pharmacodynamics of a human monoclonal anti-FGF23 antibody (KRN23) in the first multiple ascending-dose trial treating adults with X-linked hypophosphatemia. J Clin Pharmacol. 2016 Feb;56(2):176-85.[Abstract][Full Text]
32. Imel EA, Zhang X, Ruppe MD, et al. Prolonged correction of serum phosphorus in adults with X-linked hypophosphatemia using monthly doses of KRN23. J Clin Endocrinol Metab. 2015 Jul;100(7):2565-73.[Abstract][Full Text]
33. Rothenbuhler A, Esterle L, Gueorguieva I, et al. Two-year recombinant human growth hormone (rhGH) treatment is more effective in pre-pubertal compared to pubertal short children with X-linked hypophosphatemic rickets (XLHR). Growth Horm IGF Res. 2017 Oct;36:11-15.[Abstract]
34. Živičnjak M, Schnabel D, Staude H, et al. Three-year growth hormone treatment in short children with X-linked hypophosphatemic rickets: effects on linear growth and body disproportion. J Clin Endocrinol Metab. 2011 Dec;96(12):E2097-105.[Abstract][Full Text]
35. Meyerhoff N, Haffner D, Staude H, et al. Effects of growth hormone treatment on adult height in severely short children with X-linked hypophosphatemic rickets. Pediatr Nephrol. 2018 Mar;33(3):447-56.[Abstract]
36. Smith S, Remmington T. Recombinant growth hormone therapy for X-linked hypophosphatemia in children. Cochrane Database Syst Rev. 2021 Oct 7;10(10):CD004447.[Abstract][Full Text]
37. Liu ES, Carpenter TO, Gundberg CM, et al. Calcitonin administration in X-linked hypophosphatemia. N Engl J Med. 2011 Apr 28;364(17):1678-80.[Abstract]
38. Sullivan R, Abraham A, Simpson C, et al. Three-month randomized clinical trial of nasal calcitonin in adults with X-linked hypophosphatemia. Calcif Tissue Int. 2018 Jun;102(6):666-70.[Abstract]
39. Carpenter TO, Olear EA, Zhang JH, et al. Effect of paricalcitol on circulating parathyroid hormone in X-linked hypophosphatemia: a randomized, double-blind, placebo-controlled study. J Clin Endocrinol Metab. 2014 Sep;99(9):3103-11.[Abstract]
40. Holick MF, Binkley NC, Bischoff-Ferrari HA, et al. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2011 Jul;96(7):1911-30.[Abstract][Full Text]
41. Institute of Medicine Food and Nutrition Board. Dietary reference intakes for calcium and vitamin D. Washington, D.C.: The National Academies Press; 2011.[Full Text]
42. Indian Academy of Pediatrics. Rickets: standard treatment guidelines 2022. 2022 [internet publication].[Full Text]
43. Oginni LM, Sharp CA, Badru OS, et al. Radiological and biochemical resolution of nutritional rickets with calcium. Arch Dis Child. 2003 Sep;88(9):812-7.[Abstract]
44. Malloy PJ, Hochberg Z, Tiosano D, et al. The molecular basis of hereditary 1, 25-dihydroxyvitamin D3 resistant rickets in seven related families. J Clin Invest. 1990 Dec;86(6):2071-9.[Abstract][Full Text]
45. Mäkitie O, Doria A, Kooh SW, et al. Early treatment improves growth and biochemical and radiographic outcome in X-linked hypophosphatemic rickets. J Clin Endocrinol Metab. 2003 Aug;88(8):3591-7.[Abstract][Full Text]
46. de Menezes Filho H, de Castro LC, Damiani D. Hypophosphatemic rickets and osteomalacia. Arg Bras Endocrinol Metabol. 2006 Aug;50(4):802-13.[Abstract]
47. Econs MJ, McEnery PT. Autosomal dominant hypophosphatemic rickets/osteomalacia: clinical characterization of a novel renal phosphate-wasting disorder. J Clin Endocrinol Metab. 1997 Feb;82(2):674-81.[Abstract][Full Text]
Key Articles
Referenced Articles
Sign in to access our clinical decision support tools