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Reliability and measurement error of sensorimotor tests in patients with neck pain: a systematic review
Simone Elsig1,2,3,4, Lara Allet5,6,7, Caroline Henrice Germaine Bastiaenen8
1School of Health Sciences, University of Applied Sciences and Arts Western Switzerland, HES-SO Valais-Wallis, Rathausstrasse 25, 3954, Valais, Leukerbad, Switzerland. simone.elsig@gmail.com.
Background:
Neck pain is one of the leading causes of years lived with disability, and approximately half of people with neck pain experience recurrent episodes. Deficits in the sensorimotor system can persist even after pain relief, which may contribute to the chronic course of neck pain in some patients. Evaluation of sensorimotor capacities in patients with neck pain is therefore important. No consensus exists on how sensorimotor capacities of the neck should be assessed in physiotherapy. The aims of this systematic review are: (a) to provide an overview of tests used in physiotherapy for assessment of sensorimotor capacities in patients with neck pain; and (b) to provide information about reliability and measurement error of these tests, to enable physiotherapists to select appropriate tests.
Methods:
Medline, CINAHL, Embase and PsycINFO databases were searched for studies reporting data on the reliability and/or measurement error of sensorimotor tests in patients with neck pain. The results for reliability and measurement error were compared against the criteria for good measurement properties. The quality of evidence was assessed according to the modified GRADE method proposed by the COSMIN group.
Results:
A total of 206 tests for assessment of sensorimotor capacities of the neck were identified and categorized into 18 groups of tests. The included tests did not cover all aspects of the sensorimotor system; tests for the sensory and motor components were identified, but not for the central integration component. Furthermore, no data were found on reliability or measurement error for some tests that are used in practice, such as movement control tests, which apply to the motor component. Approximately half of the tests showed good reliability, and 12 were rated as having good (+) reliability. However, tests that evaluated complex movements, which are more difficult to standardize, were less reliable. Measurement error could not be evaluated because the minimal clinically important change was not available for all tests.
Conclusion:
Overall, the quality of evidence is not yet high enough to enable clear recommendations about which tests to use to assess the sensorimotor capacities of the neck.
