Voss A1,2,Singh H1,Dyrna F1,Buchmann S2,Cote MP1,Imhoff AB2,Mazzocca AD1,Beitzel KAuthor informationAbstractBACKGROUND:Recentbiomechanicaland clinical studies have demonstrated the effectiveness of suture button and pulley-type fixations for surgical treatment of acromioclavicular Concerns remain that such procedures can "overconstrain" (overreduce the lateral clavicle in relation to the acromion to a nonphysiological position) the Purpose/Hypothesis: The purpose of this study was to investigate theintra-articularpressureof native and reconstructed acromioclavicular (AC) joints in relation to the configuration of the Anatomic (0 mm), overconstrained (-3 mm), and underconstrained (+3 mm) AC joint reconstructions were The hypothesis was that reconstructions using suture pulley systems do not increase theintra-articularpressureof the AC
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