scholarly journals Unified joint reconstruction approach for random illumination microscopy: retraction

2021 ◽  
Vol 12 (3) ◽  
pp. 1247
Author(s):  
Penghuan Liu
Keyword(s):  
Joint Reconstruction ◽  
Random Illumination

scholarly journals Acromioclavicular joint reconstruction implants have differing ability to restore horizontal and vertical plane stability

2021 ◽  
Author(s):  
Mohamed Alkoheji ◽  
Hadi El-Daou ◽  
Jillian Lee ◽  
Adrian Carlos ◽  
Livio Di Mascio ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Acromioclavicular Joint ◽  
Vertical Plane ◽  
Testing System ◽  
Bonferroni Correction ◽  
Joint Reconstruction ◽  
Fresh Frozen ◽  
Robotic Testing ◽  
Robotic Testing System ◽  
Anterior Posterior

Abstract Purpose Persistent acromioclavicular joint (ACJ) instability following high grade injuries causes significant symptoms. The importance of horizontal plane stability is increasingly recognised. There is little evidence of the ability of current implant methods to restore native ACJ stability in the vertical and horizontal planes. The purpose of this work was to measure the ability of three implant reconstructions to restore native ACJ stability. Methods Three groups of nine fresh-frozen shoulders each were mounted into a robotic testing system. The scapula was stationary and the robot displaced the clavicle to measure native anterior, posterior, superior and inferior (A, P, S, I) stability at 50 N force. The ACJ capsule, conoid and trapezoid ligaments were transected and the ACJ was reconstructed using one of three commercially available systems. Two systems (tape loop + screw and tape loop + button) wrapped a tape around the clavicle and coracoid, the third system (sutures + buttons) passed directly through tunnels in the clavicle and coracoid. The stabilities were remeasured. The data for A, P, S, I stability and ranges of A–P and S–I stability were analyzed by ANOVA and repeated-measures Student t tests with Bonferroni correction, to contrast each reconstruction stability versus the native ACJ data for that set of nine specimens, and examined contrasts among the reconstructions. Results All three reconstructions restored the range of A–P stability to that of the native ACJ. However, the coracoid loop devices shifted the clavicle anteriorly. For S–I stability, only the sutures + buttons reconstruction did not differ significantly from native ligament restraint. Conclusions Only the sutures + buttons reconstruction, that passed directly through tunnels in the clavicle and coracoid, restored all stability measures (A, P, S, I) to the native values, while the tape implants wrapped around the bones anteriorised the clavicle. These findings show differing abilities among reconstructions to restore native stability in horizontal and vertical planes. (300 words)

Allo- and autografts show comparable outcomes in chronic acromioclavicular joint reconstruction: a systematic review

2021 ◽  
Author(s):  
Martin Eigenschink ◽  
Philipp R. Heuberer ◽  
Leo Pauzenberger ◽  
Grant E. Garrigues ◽  
Leonard Achenbach ◽  
...  
Keyword(s):  
Systematic Review ◽  
Acromioclavicular Joint ◽  
Joint Reconstruction

scholarly journals Joint reconstruction of an in-focus image and of the background signal in in-line holographic microscopy

2021 ◽  
Vol 146 ◽  
pp. 106691
Author(s):  
Anthony Berdeu ◽  
Thomas Olivier ◽  
Fabien Momey ◽  
Loïc Denis ◽  
Frédéric Pinston ◽  
...  
Keyword(s):  
Background Signal ◽  
Joint Reconstruction ◽  
Focus Image ◽  
Holographic Microscopy
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