Three-dimensional motion analysis of compensatory movements in patients with radioulnar synostosis performing activities of daily living

J Orthop Sci. 2009 May;14(3):307-12. doi: 10.1007/s00776-009-1332-0. Epub 2009 Jun 5.


Background: The aim of this study was to quantify the compensatory movements of the shoulder and elbow in patients with congenital radioulnar synostosis during 10 activities of daily living (ADL).

Methods: Maximum and minimum joint angles and range of motion were measured by use of a motion capture system in seven patients and seven matched controls. The forearm was fixed in 0 degrees of rotation in four patients and in 20 degrees of pronation in three patients.

Results: The main compensatory movements were shoulder internal/external rotation during five ADL tasks, shoulder abduction/adduction and elbow flexion/extension during three tasks, and shoulder flexion/extension during two tasks. These compensatory movements were observed mainly when turning a key and drawing.

Conclusions: Patients with congenital radioulnar synostosis in nearly neutral rotation could perform all ADL tasks with the aid of compensatory movements of the shoulder and elbow.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Activities of Daily Living*
  • Adolescent
  • Adult
  • Arthrometry, Articular
  • Case-Control Studies
  • Elbow Joint / physiopathology*
  • Humans
  • Image Interpretation, Computer-Assisted
  • Middle Aged
  • Range of Motion, Articular / physiology*
  • Shoulder Joint / physiopathology*
  • Synostosis / physiopathology*
  • Task Performance and Analysis
  • Video Recording
  • Young Adult