Pyrocarbon hemiarthroplasty and the shoulder: biomechanical and clinical results of an emerging treatment option [PDF]
While shoulder hemiarthroplasty is still used to treat young patients with shoulder pathology, the use of this procedure has substantially declined in recent years due to its significant complication profile.
Mohamad Y. Fares+4 more
doaj +1 more source
Stable $π$-radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) adsorbed at the elbows of $22\times\sqrt{3}$ reconstructed Au(111) [PDF]
Stable organic radicals serve as model systems for investigating metal-free magnetic phenomena at (sub)nanometer length scales. We have investigated at the single-molecule level the stable $\pi$-radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) adsorbed at the elbow sites of the $22\times\sqrt{3}$ reconstructed Au(111) surface.
arxiv +1 more source
Universal and Automatic Elbow Detection for Learning the Effective Number of Components in Model Selection Problems [PDF]
We design a Universal Automatic Elbow Detector (UAED) for deciding the effective number of components in model selection problems. The relationship with the information criteria widely employed in the literature is also discussed. The proposed UAED does not require the knowledge of a likelihood function and can be easily applied in diverse applications,
arxiv +1 more source
Spectral information criterion for automatic elbow detection [PDF]
We introduce a generalized information criterion that contains other well-known information criteria, such as Bayesian information Criterion (BIC) and Akaike information criterion (AIC), as special cases. Furthermore, the proposed spectral information criterion (SIC) is also more general than the other information criteria, e.g., since the knowledge of
arxiv +1 more source
Purpose The purpose of this study was to investigate the anatomical feasibility of a middle trapezius transfer below the acromion for treatment of irreparable supraspinatus tendon tears. Methods This study involved 20 human cadaveric shoulders in 10 full‐
Philipp Moroder+12 more
doaj +1 more source
Stop using the elbow criterion for k-means and how to choose the number of clusters instead [PDF]
A major challenge when using k-means clustering often is how to choose the parameter k, the number of clusters. In this letter, we want to point out that it is very easy to draw poor conclusions from a common heuristic, the "elbow method". Better alternatives have been known in literature for a long time, and we want to draw attention to some of these ...
arxiv +1 more source
The valgus-impacted (VI) 4-part fractures are a subset of fractures of the proximal humerus with a unique anatomic configuration characterized by a relatively lower incidence of avascular necrosis after operative intervention.
Andreas Panagopoulos+5 more
doaj +1 more source
Short-term outcomes of anatomic total shoulder arthroplasty with biceps augmentation of subscapularis peel repair [PDF]
Background Augmenting subscapularis peel repairs with the long head of the biceps tendon (LHBT) may provide increased strength to the repaired construct.
Mohamad Y. Fares+7 more
doaj +1 more source
Effect of Sensory Feedback from the Proximal Upper Limb on Voluntary Isometric Finger Flexion and Extension in Hemiparetic Stroke Subjects [PDF]
This study investigated the potential influence of proximal sensory feedback on voluntary distal motor activity in the paretic upper limb of hemiparetic stroke survivors and the potential effect of voluntary distal motor activity on proximal muscle ...
Hoffmann, Gilles+3 more
core +2 more sources
Medial Ulnar Collateral Ligament Reconstruction: A Dual Docking, 4-Ply Reconstructive Technique
Background: Ulnar collateral ligament injuries are common in the overhead-throwing athlete as the anterior band of this ligament is the primary soft tissue static stabilizer to valgus stress during a throwing motion. Various surgical techniques have been
Patrick M. Connor MD, FAOA+1 more
doaj +1 more source