This website is focused on the use of POSAS version 2.0 except where indicated.

The POSAS is free to use for non-commercial purposes but we request a small remuneration for commercial usage. Please do not modify the POSAS because this will disadvantage the general applicability and may hamper its clinimetric performance.

Retrospectively the following versions of the POSAS were denominated:
POSASv1.0 Published in 2004 in Plast. Reconstr. Surg. 113: 1960-1965 by Draaijers et al.;
POSASv2.0 Published in 2005 in Plast. Reconstr. Surg. 116: 514-522 by van de Kar et al. Adjustments: an extra item (‘surface area’) as well as extra category boxes were added to the Observer Scale, moreover, small textual adjustments were made compared to v1.0;

Please find more detailed and practical information on the next pages.