Article

Assessment of scapular
dysfunction is considered important in the clinical evaluation and treatment of
patients with symptoms of subacromial impingement. However, sparse research has
been conducted into the reliability and predictive value of clinical tests with
which to identify scapular dyskinesis. PURPOSE OF THE STUDY: To evaluate
intrarater and interrater reliability and predictive value of the Scapular
Dyskinesis Test (SDT) in patients with subacromial impingement syndrome. METHODS: Forty-five patients with subacromial impingement syndrome were included. The
presence of scapular dyskinesis was classified by 2 raters using the SDT.
Intrarater and interrater reliabilities were examined and compared. Patients with
and without scapular dyskinesis were compared in terms of Oxford Shoulder Score
and EQ-5D-5L scores at baseline and 3 months, as well rating of overall
improvement in shoulder condition. RESULTS: SDT could not be performed in 5
patients, leaving 40 patients for further analysis. Kappa with squared weights
was 0.64 for rater A and 0.86 for rater B; the intrarater agreement was 88% for A
and 96% for B. For interrater comparison, the Kappa value was 0.59 and agreement
86%. No statically significant differences in Oxford Shoulder Score and EQ-5D-5L
baseline and change scores or overall improvement in shoulder condition at 3
months were observed between patients with or without scapular dyskinesis.
CONCLUSIONS: Intrarater and interrater reliability and agreement of the SDT were
determined. The findings that functional impairment and outcomes did not differ
between patients with or without the presences of scapular dyskinesis may
question the clinical value of the SDT in patients with subacromial impingement syndrome.
LEVEL OF EVIDENCE: 1b.
CI - Copyright (c) 2017 Hanley & Belfus. Published by Elsevier Inc. All rights reserved.

Langue : ANGLAIS