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. 2016 Jul 26:17:312.
doi: 10.1186/s12891-016-1171-z.

Development and validation of a novel questionnaire for self-determination of the range of motion of wrist and elbow

Marc Schnetzke  1 , Svenja Schüler  2 , Holger Keil  1 , Sara Aytac  1 , Stefan Studier-Fischer  1 , Paul-Alfred Grützner  1 , Thorsten Guehring  3   4
Affiliations

Development and validation of a novel questionnaire for self-determination of the range of motion of wrist and elbow

Marc Schnetzke et al. BMC Musculoskelet Disord. .

Abstract

Background: The aim of this study was to develop and validate a novel self-administered questionnaire for assessing the patient's own range of motion (ROM) of the wrist and the elbow.

Methods: In a prospective clinical study from January 2015 to June 2015, 101 consecutive patients were evaluated with a novel, self-administered, diagram-based, wrist motion assessment score (W-MAS) and elbow motion assessment score (E-MAS). The questionnaire was statistically evaluated for test-retest reliability, patient-physician agreement, comparison with healthy population, and influence of covariates (age, gender, affected side and involvement in workers' compensation cases).

Results: Assessment of patient-physician agreement demonstrated almost perfect agreement (k > 0.80) with regard to six out of eight items. There was substantial agreement with regard to two items: elbow extension (k = 0.76) and pronation (k = 0.75). The assessment of the test-retest reliability revealed at least substantial agreement (k = 0.70). The questionnaire revealed a high discriminative power when comparing the healthy population with the study group (p = 0.007 or lower for every item). Age, gender, affected side and involvement in workers' compensation cases did not in general significantly influence the patient-physician agreement for the questionnaire.

Conclusion: The W-MAS and E-MAS are valid and reliable self-administered questionnaires that provide a high level of patient-physician agreement for the assessments of wrist and elbow ROM.

Level of evidence: Diagnostic study, Level II.

Keywords: Elbow; Measurement tool; Questionnaire; Range of motion; Reliability; Self-assessment; Validity; Wrist.

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Figures

Fig. 1
Fig. 1
Percentage of exact agreement dependent on severity of disorder (E-MAS). The number of patients for each category is shown behind its respective item
Fig. 2
Fig. 2
Percentage of exact agreement dependent on severity of disorder (W-MAS). The number of patients for each category is shown behind its respective item
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