Affiliations: [a] Department of Physiotherapy, Józef Rusiecki University College in Olsztyn, Bydgoska, Poland | [b] Department of Rehabilitation and Physiotherapy, University of Medical Sciences, Poznan, Poland | [c] Department of Orthopedics, Pediatric Orthopedics and Traumatology, The Centre of Postgraduate Medical Education in Warsaw, Otwock, Poland | [d] Department of Rehabilitation, The Voivodeship Rehabilitation Hospital For Children in Ameryka, Ameryka, Poland | [e] Department of Spine Disorders and Pediatric Orthopedics, University of Medical Sciences, Poznan, Poland
Correspondence:
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Corresponding author: Dariusz Czaprowski, Department of Physiotherapy, Józef Rusiecki University College in Olsztyn, 10-243 Olsztyn, Bydgoska 33, Poland. Tel.: +48 895260400; E-mail: dariusz.czaprowski@interia.pl.
Abstract: BACKGROUND: Body height (BH) measurement is an important part of the clinical evaluation of children with idiopathic scoliosis (IS) as its progression is defined based on the observation of a growth spurt. OBJECTIVE: The aim of the study is to assess diurnal variation of BH in children with IS. METHODS:BH was measured in 98 children with IS (Cobb angle: 10∘–52∘, mean 21.2∘± 9.9∘) both in standing and sitting position. The measurements were performed 4 times a day – between: (1) 7:00 and 8:00; (2) 11:00 and 12:00; (3) 15:00 and 16:00 and (4) 19:00 and 20:00. RESULTS: A significant decrease in BH during the day was observed in both standing and sitting positions (p< 0.001). The highest decrease in height was observed between the measurements performed between 7:00 and 8:00 and measurements carried out in the evening (19:00–20:00). For standing, the mean loss of height was 0.7 cm (± 0.7), i.e. 0.43% of initial standing height, for sitting the mean decrease in height was 0.7 cm (± 0.7), i.e. 0.79% of initial sitting height. CONCLUSIONS:BH decreases in children with IS during daytime. Due to diurnal BH variation, the time of the day should be recorded when measuring patients with IS.
Keywords: Idiopathic scoliosis, body height, diurnal variation, treatment, evaluation, progression
