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Supplementary addendum to “Non-radiographic methods of measuring global sagittal balance: a systematic review”; Reliability of the Spinal Mouse in adult back pain sufferers

A Review to this article was published on 03 October 2017

We would like to provide an update for the paper “Non-radiographic methods of measuring global sagittal balance: a systematic review” in Scoliosis and Spinal Disorders [1] with additional data regarding the reliability of the Spinal Mouse method in evaluating global sagittal balance through trunk inclination in an adult population with back pain.

We were alerted to the presence of additional data [2] fitting the inclusion criteria documenting excellent intra-rater reliability (ICC 0.845 [CI 0.679–0.925], SEM 0.803°) of the Spinal Mouse system in a population of 50 adults with back pain aged 58.4 ± 13.4 years. This reliability data is consistent with the reported results in healthy children and healthy adults.

Tables 1 and 2 are updated as below.

Table 1 Methodological quality of included studies evaluated using the Brink and Louw critical appraisal tool
Table 2 Study characteristics, reliability, validity and SEM data of included studies


  1. Cohen L, Kobayashi S, Simic M, Dennis S, Refshauge K, Pappas E. Non-radiographic methods of measuring global sagittal balance: a systematic review. Scoliosis Spinal Disord. 2017;12(1):30.

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  2. Topalidou A, Tzagarakis G, Souvatzis X, Kontakis G, Katonis P. Evaluation of the reliability of a new non-invasive method for assessing the functionality and mobility of the spine. Acta Bioeng Biomech. 2014;16(1):117–24.

    PubMed  Google Scholar 

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We would like to thank Dr. Topalidou for alerting us to the presence of the additional data.


No funding was received for the preparation and submission of this research report.

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Data sharing is not applicable to this article as no datasets were generated or analysed during the current study.

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Authors and Affiliations



LC, SK, MS, SD, KR and EP were involved in the conception of the original study, design of the study and helped to draft the manuscript. LC, SK and EP were involved with the database searches, record screening and article review process. All authors read and approved the final manuscript.

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Correspondence to Larry Cohen.

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Cohen, L., Kobayashi, S., Simic, M. et al. Supplementary addendum to “Non-radiographic methods of measuring global sagittal balance: a systematic review”; Reliability of the Spinal Mouse in adult back pain sufferers. Scoliosis 13, 20 (2018).

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