METHOD FOR PREDICTION OF RISK OF OSTEOARTHROSIS IN INDIVIDUALS WITH JOINT HYPERMOBILITY Russian patent published in 2015 - IPC A61B5/11 A61B5/103 

FIELD: medicine.

SUBSTANCE: range of motions of hand joints is determined by conducting 9 tests: 1 - active ulnar deviation of II-V fingers by metacarpophalangeal and interphalangeal deflexion; 2 - active hyperextension of II-V fingers ≥90°; 3 - nail bone protrusion over an ulnar border of the palm with a thumb fixed across the palm; 4 - passive thumb adduction to the back of the hand; 5 - hyperextension of carpometacarpal joint of the thumb; 6 - active flexion in distal interphalangeal joints of II-V fingers; 7 - transverse finger traction in the opposite direction in the metacarpophalangeal joints of II-III, III-IV fingers; 8 - passive alternating overlap of III, IV, V fingers; 9 - hand rotation through full 360° in shoulder and elbow joints. The past medical history is studied to find the onset of joint pains and to detect a snapping hip symptom. If the individual with the joint hypermobility have the onset of joint pains at the age of 38 years or earlier, while four or more ranges of motion tests appear to be positive, the risk of osteoarthrosis makes 100%. The individuals with the onset of the joint hypermobility at the age of 38 years or later, having two or more ranges of motion tests positive suffer the risk of osteoarthrosis making 69.6%. In the individuals with the onset of the joint hypermobility at the age of 38 years or later having two or more ranges of motion tests positive and suffering the snapping hip symptom, the risk of osteoarthrosis makes 25%. The individuals having the onset of the joint hypermobility at the age of 38 years or later and completed at least two ranges of motion tests with no snapping hip symptom detected suffer the risk of osteoarthrosis making 0%.

EFFECT: method enables increasing an accuracy of predicting the risk of osteoarthrosis in the individuals suffering the joint hypermobility by determining the hand range of motions and the age of the onset of joint pains.

2 dwg, 1 tbl, 2 ex