Biomechanical data concerning the shoulder impingement syndrome.

  title={Biomechanical data concerning the shoulder impingement syndrome.},
  author={Nikolaus W{\"u}lker and Wolfgang Plitz and B Roetman},
  journal={Clinical orthopaedics and related research},
This study evaluates forces underneath the coracoacromial vault during elevation of the arm, using a dynamic shoulder model. Muscle forces at the glenohumeral joint were simulated with hydrodynamic cylinders and applied to the deltoid muscle and to the rotator cuff through wire cables in ten anatomic specimens. Computerized regulation initiated precise, time-controlled cycles of glenohumeral joint motion. The position of the arm in all spatial orientations was measured with an ultrasonic device… CONTINUE READING


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