Harding VV: Time schedule for the appearance and fusion of a second accessory center of ossification of the calcaneus.Child Dev 23::181. ,1952. .
Hoerr NL, Pyle SI, Francis CC: Radiographic Atlas of Skeletal Development of the Foot and Ankle, Charles C Thomas, Springfield, IL,1962. .
Haglund P: Ueber Fractur des Epiphysenkerns des Calcaneus, nebst allgemeinen Bemerkungen ueber einige aehnliche juvenile Knochenkernverletzungen.Archiv fur klinische Chirurgie 82::922. ,1907. .
Sever JW: Apophysitis of the os calcis.NY Med J 95::1025. ,1912. .
Scharfbillig RW, Jones S, Scutter SD: Sever’s disease: what does the literature really tell us?JAPMA 98::212. ,2008. .
McKenzie DC, Taunton JE, Clement DB, et al: Calcaneal apophysitis in adolescent athletes.Can J Appl Sport Sci 6::123. ,1981. .
Micheli LJ, Ireland ML: Prevention and management of calcaneal apophysitis in children: an overuse syndrome.J Pediatr Orthop 7::34. ,1987. .
Kvist MH, Heinonen OJ: Calcaneal apophysitis (Sever’s disease): a common cause of heel pain in young athletes.Sci J Med Sci Sport 1::235. ,1991. .
Micheli LJ, Fehlandt AF: Overuse injuries to tendons and apophyses in children and adolescents.Clin Sports Med 11::713. ,1992. .
Madden CC, Mellion MB: Sever’s disease and other causes of heel pain in adolescents.Am Fam Phys 54::1995. ,1996. .
Lewin P: Apophysitis of the os calcis.Surg Gynecol Obstet 41::578. ,1925. .
Krantz MK: Calcaneal apophysitis: a clinical and roentgenologic study.JAPMA 55::801. ,1965. .
Szames SE, Forman WH, Oster J, et al: Sever’s disease and its relationship to equinus: a statistical analysis.Clin Podiatr Med Surg 7::377. ,1990. .
Rozenblat M, Bauchot G: Sever’s disease: a new therapeutic approach in a series of 68 athletes.J Traumatol Sport 11::90. ,1994. .
Grimmer K, Williams J, Pitt M: Reliability of adolescents’ self-report of recent recreational injury.J Adolesc Health 27::273. ,2000. .
Jones D, Louw Q, Grimmer K: Recreational and sporting injury to the adolescent knee and ankle: prevalence and causes.Aust J Physiother 46::179. ,2000. .
Scharfbillig R, Scutter SD: Measurement of foot dorsiflexion: a modified Lidcombe template.JAPMA 94::573. ,2004. .
Evans AM, Copper AW, Scharfbillig RW, et al: Reliability of the Foot Posture Index and traditional measures of foot position.JAPMA 93::203. ,2003. .
Menz HB: Clinical hindfoot measurement: a critical review of the literature.Foot 5::57. ,1995. .
Root ML, Orien WP, Weed JH, et al: Biomechanical Examination of the Foot, Vol I, Clinical Biomechanics Corp, Los Angeles,1971. .
Scharfbillig R, Evans AM, Copper AW, et al: Criterion validation of four criteria of the Foot Posture Index.JAPMA 94::31. ,2004. .
Redmond AC, Crosbie J, Ouvrier RA: Development and validation of a novel rating system for scoring standing foot posture: the Foot Posture Index.Clin Biomech 21::89. ,2006. .
Menz HB, Munteanu SE: Validity of 3 clinical techniques for the measurement of static foot posture in older people.J Orthop Sports Phys Ther 35::179. ,2005. .
Walters SJ, Campbell MJ, Lall R: Design and analysis of trials with quality of life as an outcome: a practical guide.J Biopharm Stat 11::155. ,2001. .
Cohen ME: Analysis of ordinal dental data: evaluation of conflicting recommendations.J Dental Res 80::309. ,2001. .
Sullivan LM, D’Agostino RB Sr: Robustness and power of analysis of covariance applied to ordinal scaled data as arising in randomized controlled trials.Stat Med 22::1317. ,2003. .
Menz HB: Two feet, or one person? problems associated with statistical analysis of paired data in foot and ankle medicine.Foot 14::2. ,2004. .
Hosmer DW, Lemeshow S: Applied Logistic Regression, John Wiley & Sons Inc, New York,1989. .
Cole TJ, Bellizzi MC, Flegal KM, et al: Establishing a standard definition for child overweight and obesity worldwide: international survey.BMJ 320::1. ,2000. .
Meyerding HW, Stuck WG: Painful heels among children (apophysitis).JAMA 102::1658. ,1934. .
Simko MV: Heel apophysitis: three case reports.JAPA 55::670. ,1965. .
Fehlandt AF, Thabit G, Micheli LJ: Achilles tendonitis and calcaneal apophysitis in adolescent athletes.Med Sci Sports Exerc 24::S38. ,1992. .
Orava S, Puranen J: Exertion injuries in adolescent athletes.Br J Sports Med 12::4. ,1978. .
Liberson A, Lieberson S, Mendes DG, et al: Remodelling of the calcaneus apophysis in the growing child.J Pediatr Orthop B 4::74. ,1995. .
Volpon JB, de Carvalho Filho G: Calcaneal apophysitis: a quantitative radiographic evaluation of the secondary ossification center.Arch Orthop Trauma Surg 122::338. ,2002. .
Asmussen E, Heeboll-Nielsen K: Physical performance and growth in children: influence of sex, age and intelligence.J App Physiol 8::371. ,1956. .
Stettler N, Stallings VA, Troxel AB, et al: Weight gain in the first week of life and overweight in adulthood: a cohort study of European American subjects fed infant formula.Circulation 111::1897. ,2005. .
Malecka-Tendera E, Klimek K, Matusik P, et al: Obesity and overweight prevalence in Polish 7- to 9-year-old children.Obes Res 13::964. ,2005. .
Trott AW: Children’s foot problems.Orthop Clin North Am 13::641. ,1982. .
McCrea JD: Pediatric Orthopaedics of the Lower Extremity, p 249, Futura, New York,1985. .
Root ML, Orien WP, Weed JH: Normal and Abnormal Function of the Foot, Vol II, Clinical Biomechanics Corp, Los Angeles,1977. .
Tax HR: Podopediatrics, 2nd Ed, p 201, Williams & Wilkins, Baltimore,1985. .
Thomson P (ed): Introduction to Podopaediatrics, p 225, WB Saunders, London,1993. .
Valmassey RL (ed): Clinical Biomechanics of the Lower Extremities, p 67, 260, Mosby, St. Louis,1996. .
Dyment PG: Apophyseal injuries.Pediatr Ann 26::28. ,1997. .
Topham AE, White JA: Sever’s disease.Phys Ther Case Rep 1::160. ,1998. .
Omey ML, Micheli LJ: Foot and ankle problems in the young athlete.Med Sci Sports Exerc 31::S470. ,1999. .
Stess RM: Persistent calcaneal apophysitis: a case report.JAPA 63::147. ,1973. .
Gregg JR, Das M: Foot and ankle problems in the preadolescent and adolescent athlete.Clin Sports Med 1::131. ,1982. .
Santopietro FJ: Foot and foot-related injuries in the young athlete.Clin Sports Med 7::563. ,1988. .
Subotnik SJ (ed): Sports Medicine of the Lower Extremity, p 264, Churchill-Livingstone, New York,1989. .
Clain MR, Hershman EB: Overuse injuries in children and adolescents.Phys Sports Med 17::111. ,1989. .
Dalgleish M: Calcaneal apophysitis (Sever’s disease) clinically based treatment.Sportsmed News 15.,1990. .
Garbett L: Calcaneal apophysitis: Sever’s disease.Sportsmed News 9.,1991. .
Bartold S: Heel pain in young athletes.Aust Podiatr 27::103. ,1993. .
Saperstein AL, Nicholas SJ: Pediatric and adolescent sports medicine.Pediatr Clin North Am 43::1013. ,1996. .
Bruns W, Maffulli N: Lower limb injuries in children in sports.Clin Sports Med 19::637. ,2000. .
Hetherington BH: Sever’s disease: traction apophysitis of calcaneum [correspondence].N Z J Sports Med 13::58. ,1985. .
Crawford AH, Gabriel KR: Foot and ankle problems.Orthop Clin North Am 18::649. ,1987. .
Grimmer K: Young People’s Participation in Sports and Recreational Activities and Associated Injury, p 16, University of South Australia, Adelaide,1999. .
Yates B, White S: The incidence and risk factors in the development of medial tibial stress syndrome among naval recruits.Am J Sports Med 32::772. ,2004. .
Burns J, Keenan AM, Redmond A: Foot type and overuse injury in triathletes.JAPMA 95::235. ,2005. .
Burns J, Crosbie J: Weight bearing ankle dorsiflexion range of motion in idiopathic pes cavus compared to normal and pes planus feet.Foot 15::91. ,2005. .
Background: Sever’s disease, also known as calcaneal apophysitis, is thought to be an inflammation of the apophysis of the heel, which is open in childhood. This condition has been commented on and looked at in a retrospective manner but has not been examined systematically. We assembled the most commonly cited theoretical causative models identified from the literature and tested them to determine whether any were risk factors.
Methods: Children with Sever’s disease were compared with a similarly aged nonsymptomatic population to determine whether identifiable risk factors exist for the onset of Sever’s disease. Areas raised in the literature and, hence, compared were biomechanical foot malalignment, as measured by Root et al–type foot measurements and the Foot Posture Index; ankle joint dorsiflexion, measured with a modified apparatus; body mass index; and total activity and types of sport played.
Results: Statistically significant but small odds ratios were found in forefoot to rearfoot determination and left ankle joint dorsiflexion.
Conclusions: This study suggests that there is no evidence to support that weight and activity levels are risk factors for Sever’s disease. The statistically significant but clinically negligible odds ratio (0.93) on the left side for decreased ankle joint dorsiflexion and statistically significant and clinically stronger odds ratio bilaterally for forefoot to rearfoot malalignment suggest that biomechanical malalignment is an area for further investigation. (J Am Podiatr Med Assoc 101(2): 133–145, 2011)