Volume 7 Supplement 1

8th International Conference on Conservative Management of Spinal Deformities and SOSORT 2011 Annual Meeting

Open Access

The usefulness of the sum of rotation parameter in scoliosis screening

  • J Chowańska1, 2, 3 and
  • T Kotwicki2
Scoliosis20127(Suppl 1):O59

https://doi.org/10.1186/1748-7161-7-S1-O59

Published: 27 January 2012

Purpose of the study

It was to assess the usefulness of the Sum of Rotation parameter in scoliosis screening.

Background

The Sum of Rotation parameter (SR) represents the sum of absolute values of angles of trunk rotation (ATRs) measured with a scoliometer on three spinal levels: proximal thoracic, main thoracic and thoracolumbar/lumbar. This parameter is useful in following-up the patient during conservative scoliosis management, because it documents the global rotational trunk deformity [14].

Materials and methods

In a cohort of 996 school girls, aged 11.0 ± 1.0 years, range 9 to13, the average, standard deviation, minimum and maximum values of SR were calculated separately for three distinct subgroups: (a) ATR: 0°- 3°, (b) ATR 4° to 6° and (c) ATR ≥ 7°.

Results

The SR value was: (a) 0.9 ± 1.2, range 0.0° to 6.0°, N=870, (b) 5.5 ± 1.9, range 4.0° to 17°, N= 94, (c) 10.2 ± 3.3, range 7.0° to 20.0°, N= 32. Normal children with important SR values were identified (SR = 2°+2°+2° = 6°).

Conclusions

The use of SR parameter seems not reveal additional information in scoliosis screening comparing to simple ATR measurement. Moreover, a risk of bias is present if the cut-off criterion of 7° is applied.

Authors’ Affiliations

(1)
Rehasport Clinic
(2)
Spine Disorders Unit, Department of Pediatric Orthopedics and Traumatology, University of Medical Sciences
(3)
Spine Disorders Unit, Department of Pediatric Orthopedics and Traumatology, University of Medical Sciences, ul

References

  1. Bunnell WP: Outcome of spinal screening. Spine. 1993, 18: 1572-1580. 10.1097/00007632-199309000-00001.View ArticlePubMedGoogle Scholar
  2. Goldberg CJ, Kaliszer M, Moore DP, Fogarty EE, Dowling FE: Surface topography, Cobb angles and cosmetic change in scoliosis. Spine (Phila Pa 1976). 2001, 26: E55-E63. 10.1097/00007632-200102150-00005.View ArticleGoogle Scholar
  3. Kotwicki T, Kinel E, Chowańska J, Bodnar-Nanuś A: POTSI, Hump Sum and Sum of Rotation - new surface topography parameters for evaluation of scoliosis deformity of the trunk. Fizjoterapia Polska. 2008, 8: 231-240.Google Scholar
  4. Suzuki N, Inami K, Ono T, Kohno K, Asher MA: Analysis of posterior trunk symmetry index (POTSI) in Scoliosis. Part 1. Research into Spinal Deformities 2. Stokes, I.A.F. 1999, Amsterdam, IOS Press, 81-84.Google Scholar

Copyright

© Chowańska and Kotwicki; licensee BioMed Central Ltd. 2012

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Advertisement