Affiliations: [a] Service de Médecine Physique et de Réadaptation, Hôpital Lariboisière-Fernand-Widal, Département Médico-Universitaire Locomotion, AP-HP, Université Paris Cité, Paris, France | [b] Service de Rhumatologie, Hôpital Lariboisière-Fernand-Widal, Département Médico-Universitaire Locomotion, AP-HP, Université Paris Cité, Paris, France
Correspondence:
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Corresponding author: Johann Beaudreuil, Service de Médecine Physique et de Réadaptation, Hôpital Lariboisière-Fernand-Widal, Département Médico-Universitaire Locomotion, AP-HP, Université Paris Cité, Paris, 2 rue Ambroise Paré, 75010 Paris, France. E-mail: johann.beaudreuil@aphp.fr.
Abstract: BACKGROUND: Dynamic humeral centering (DHC) is a physiotherapy modality that aims to prevent sub-acromial impingement of rotator cuff tendons. We recently developed a new clinical manoeuver – the Viggo-Cochin test – to enhance the ability of the Neer test to detect sub-acromial impingement. Here we hypothesised whether the DHC effect may differ between individuals with positive and negative Viggo-Cochin test results. OBJECTIVE: To assess the association between DHC and Viggo-Cochin test results. METHODS: Individuals with shoulder pain due to sub-acromial impingement underwent the Neer and Viggo-Cochin tests at baseline. They were assessed before and after DHC by the Shoulder Pain and Disability Index (SPADI). A positive response to DHC was defined as a 20% reduction in the SPADI. RESULTS: We included 50 individuals (53 shoulders). The response to DHC did not differ by Neer test result at baseline: OR 0.73 [95% CI 0.22–2.38] (p= 0.601). By contrast, the response to DHC was 5-fold higher with a positive than negative Viggo-Cochin test result: OR 5.11 [95% CI 1.47–17.78] (p= 0.010). CONCLUSIONS: We found a higher clinical response to DHC with a positive than negative Viggo-Cochin test result at baseline in individuals with shoulder pain due to rotator cuff disease.
