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Reverse shoulder arthroplasty components and surgical techniques that restore glenohumeral motion
24 May 2012
Nazeem A. Virani, Andres Cabezas, Sergio Gutiérrez, Brandon G. Santoni, Randall Otto, Mark Frankle
Background: Modifications in reverse shoulder arthroplasty (RSA) have been made with the intent of maximizing motion, although there is little objective evidence outlining their benefit. This study in...
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The function of the clavicle on scapular motion: a cadaveric study
21 May 2012
Noboru Matsumura, Noriaki Nakamichi, Hiroyasu Ikegami, Takeo Nagura, Nobuaki Imanishi, Sadakazu Aiso, Yoshiaki Toyama
Hypothesis: The clavicle serves as a strut between the thorax and scapula, and lack of this function could affect shoulder mobility. We hypothesized that clavicular discontinuity changes shoulder kine...
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The anterior deltoid's importance in reverse shoulder arthroplasty: a cadaveric biomechanical study
21 May 2012
Daniel G. Schwartz, Sang Hoon Kang, T. Sean Lynch, Sara Edwards, Gordon Nuber, Li-Qun Zhang, Matthew Saltzman
Background: Frequently, patients who are candidates for reverse shoulder arthroplasty have had prior surgery that may compromise the anterior deltoid muscle. There have been conflicting reports on the...
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Glenohumeral contact pressure in a simulated active compression test using cadaveric shoulders
21 May 2012
Tony Lin, Pooya Javidan, Michelle H. McGarry, Guillem Gonzalez-Lomas, Orr Limpisvasti, Thay Q. Lee
Background: The active compression test has been described to detect superior labrum anterior and posterior (SLAP) lesions. Some have speculated that contact between the lesser tuberosity and the supe...
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Complications associated with open coracoid transfer procedures for shoulder instability
21 May 2012
Usman Butt, Charalambos P. Charalambous
Background: Interest has been maintained in the use of coracoid transfer procedures for recurrent shoulder instability despite the significant potential for serious complications. A comprehensive syst...
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