The intra-articular pressure of the shoulder: an experimental study on the role of the glenoid labrum in stabilizing the joint.

@article{Habermeyer1992TheIP,
  title={The intra-articular pressure of the shoulder: an experimental study on the role of the glenoid labrum in stabilizing the joint.},
  author={Peter Habermeyer and U Schuller and E Baquero T. Bergan J. Degener G. C. Schito B. Wiedemann},
  journal={Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association},
  year={1992},
  volume={8 2},
  pages={166-72}
}
It was shown on human corpses that the glenohumeral joint may be compared to a piston surrounded by a valve. The glenoid labrum, then, should work like the valve block, sealing the joint from atmospheric pressure. In order to test this hypothesis, 18 human shoulder preparations were studied. The mean stabilizing force obtained by atmospheric pressure was 146 N. Additionally, 15 patients without any sign of instability and 17 patients with an anterior instability of the shoulder were tested… CONTINUE READING
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