Center of rotation affects abduction range of motion of reverse shoulder arthroplasty
作者： Sergio Gutiérrez , Jonathan C Levy , William E Lee , Tony S Keller , Murray E Maitland
DOI: 10.1097/BLO.0B013E31803D0F57
关键词: Scapula 、 Instant centre of rotation 、 Arthroplasty 、 Medicine 、 Glenoid cavity 、 Rotation 、 Surgery 、 Goniometer 、 Orthodontics 、 Acromion 、 Range of motion
摘要: Although clinical outcomes of the reverse shoulder replacement have noted improvements in pain and function, evaluation these reveals concerns regarding progressive scapular notching variability functional range motion. Therefore, an apparatus was designed to examine differences abduction motion for seven configurations arthroplasty. An electronic goniometer used measure motion, digital video analysis determine impingement points. Finally, a correlation between effect changing center rotation glenosphere performed. As moved more lateral from glenoid, increased. The greatest 97 degrees +/- 0.9 using glenoid component with offset 10 mm 0.4 glenoid. smallest 67 1.8 0.5 0.1 surface. Range always limited by points on scapula. Inferiorly, adduction either inferior border or Superiorly, acromion. A positive linear found relative
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