Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/133830
Title: The role of atmospheric pressure in stabilising the shoulder. An experimental study
Authors: Kumar, V.P. 
Balasubramaniam, P. 
Issue Date: 1985
Source: Kumar, V.P., Balasubramaniam, P. (1985). The role of atmospheric pressure in stabilising the shoulder. An experimental study. Journal of Bone and Joint Surgery - Series B 67 (5) : 719-721. ScholarBank@NUS Repository.
Abstract: The role of atmospheric pressure in providing static stability of the shoulder was studied experimentally in 24 cadaveric shoulders. Atmospheric air was allowed to enter the joint after puncturing the capsule. Three types of experiment were performed; in the first, the capsule was punctured after sequential division of the muscles; in the second, atmospheric air was let in by percutaneous puncture of the capsule without dividing the muscles; and in the third, air was first let into the joint by percutaneous puncture of the capsule and then the muscles of the shoulder were divided. It was found that the intact shoulder subluxated after percutaneous puncture even without division of the overlying muscles or the capsule. Our findings suggest that negative pressure and muscle tone are the main static stabilisers of the shoulder, rather than the joint capsule.
Source Title: Journal of Bone and Joint Surgery - Series B
URI: http://scholarbank.nus.edu.sg/handle/10635/133830
ISSN: 0301620X
Appears in Collections:Staff Publications

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