116.
Validation of the Danish version of the Achilles tendon Total Rupture
Score (ATRS).
Ann Ganestam, Kristoffer Barfod, Jakob Klit, Anders Troelsen
Orthopaedics Hvidovre Hospital, Denmark ; Orthopaedics, Hvidovre Hospital,
Denmark ; Orthopaedics, Hvidovre Hospital, Denmark ; Orthopaedics,
Hvidovre Hospital, Denmark
Background:
The best treatment of acute Achilles tendon ruptures remains
debated. Patient reported outcome measures (PROM’s) have become
cornerstones in evaluation of treatments, and The Achilles tendon Total
Rupture Score (ATRS) has been developed for this purpose. The ATRS
seemingly facilitates easy assessment of outcome, but it requires further
validation and translation to be used in a Danish context.
Purpose / Aim of Study:
To validate a Danish translation of the ATRS
against existing Achilles tendon specific and quality of life related PROM’s.
Materials and Methods:
The ATRS consists of 10 items reflecting symptoms
and physical activity related to the Achilles tendon with answers given on an
11-
grade Likert-scale (0-10 points). A score of 100 is the best possible score.
The ATRS was translated into Danish according to internationally adopted
standards . The ATRS, VISA-A, and SF-36 scores were returned by 86
patients with previous rupture of the Achilles tendon. 61 patients returned a re-
test of the ATRS after 1-3 weeks.
Findings / Results:
The ATRS showed moderately strong correlations with
the physical sub scores of SF-36 (r= 0.67 – 0.73; P<0.0001) and VISA-A (r=
0.71;
P<0.0001), assessed by Spearman’s rank correlation. The internal
consistency measured with Cronbach’s alpha was 0.96. Test-retest showed
significantly (P=0.009) higher scores on the second test day (mean difference:
- 3.5; 95%
limits of agreement: +/- 19.8).
Conclusions:
The Danish version of the ATRS showed good internal
consistency and moderately strong correlation with the SF-36 and VISA-A.
Thus, the ATRS seems to be a relevant PROM for evaluation of treatment
outcome. However, attention should be drawn towards the potential instability
of the ATRS suggested by the test-retest results.
