As a secondary outcome measure, a modified version of the ACR joint count was used. The distal interphalangeal joints of the feet and carpometacarpal joints of the hands were added to the usual ACR ...

6 25 The classification of EHOA was not based on the metacarpophalangeal, first carpometacarpal and scaphotrapeziotrapezoidal joints; this approach was taken to minimise the risk of incorrectly ...