Acromial compromise with use of a transacromial portal: a biomechanical study.
In an experimental evaluation with 14 paired cadaveric scapulae we found that the transacromial arthroscopy portal, used occasionally in the repair of superior labral lesions, will reduce the structural integrity of the acromion to approximately 60% (range 25% to 85%) of its original strength, thereby placing it at increased risk of fracture. These studies provide baseline biomechanical information and suggest that limited shoulder activity is indicated after use of this portal.
Department of Orthopaedic Surgery, School of Medicine, Loma Linda University, CA 92350, USA.
M J
MJ
Coen
C M
CM
Jobe
K
K
Pak
D000173:Acromioclavicular Joint / Q000502:physiology*; D001696:Biomechanical Phenomena; D002102:Cadaver; D006801:Humans; D012540:Scapula / Q000502:physiology*; D012785:Shoulder Joint / Q000502:physiology