• J F Huber, J Hüsler, M D Zumstein, G Ruflin, and M Lüscher.
• Orthopädische Klinik, Kantonsspital Aarau, Schweiz. joerg.huber@ksa.ch
• Z Orthop Unfall. 2007 Nov 1;145(6):795-7.

AimThe visual analogue scale (VAS) and Likert scale (LS) are widely used but the patients might have difficulties to work with these scales and there might be errors in calculation. The visual circle scale (VCS) is a graphic construct with a simple grading to augment the understanding and ease for calculation.MethodThis study compares the different scales in orthopaedic patients for pain assessment postoperatively. In addition, the scales were rated by the patients for simplicity, understanding and global rating.ResultsIncluded were 65 patients (40 women) with an average age of 66 years with 330 pain assessments and 65 questionnaire ratings. The average pain was LS 42.7, VAS 39.3, VCS 44. The correlation coefficients r (Spearman) between all scales were > 0.89 and the same held also for sensitivity for change. The VCS was the scale preferred by > 50 % of the orthopaedic patients to assess the pain.ConclusionThe VCS is able to measure pain comparably to the known scales (VAS, Likert scale). From the patients point of view it is the preferred scale to work with.

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