has part has part characteristic of inheres in attached to has modifier Thumb contracture Carpometacarpal thumb joint contracture 2009-01-29T04:52:18Z HP:0009624 UMLS:C4024269 Chronic loss of joint motion of the carpometacarpal joint of the thumb due to structural changes in non-bony tissue. This joint is formed by the first metacarpal and the trapezial bone and is also called Articulatio carpometacarpalis pollicis, carpometacarpal articulation of thumb, carpometacarpal joint of thumb or first carpometacarpal articulation. Seldom referred to as thumb saddle joint. Contracture of the carpometacarpal joint of the thumb abnormal decreased length tendon carpometacarpal joint of digit 1