PT - JOURNAL ARTICLE AU - Howe, A AU - Thompson, D AU - Wright, V TI - Reference values for metacarpophalangeal joint stiffness in normals. AID - 10.1136/ard.44.7.469 DP - 1985 Jul 01 TA - Annals of the Rheumatic Diseases PG - 469--476 VI - 44 IP - 7 4099 - http://ard.bmj.com/content/44/7/469.short 4100 - http://ard.bmj.com/content/44/7/469.full SO - Ann Rheum Dis1985 Jul 01; 44 AB - A new form of microprocessor-controlled arthrograph is described which measures stiffness parameters of the metacarpophalangeal joints of the index, middle, and ring fingers of both hands. The apparatus is simple and quick to use and gives reproducible results. The arthrograph is used to determine the reference limits for stiffness at the middle finger of the right hand in 128 normal subjects. It is found that incorporating information on the subject's finger circumference allows a much improved precision to be achieved, but the precision is not further enhanced by including details of age and sex.