BACKGROUND Acute Hill-Sachs reduction represents a potential alternative method to remplissage for the treatment of an engaging Hill-Sachs lesion. This study biomechanically compared the stabilizing effects of an acute Hill-Sachs reduction technique and remplissage. METHODS Six cadaveric shoulders were tested. For the acute Hill-Sachs lesion, a unique model was used to create a 30% defect, co...

Background:   To assess the outcome of the remplissage arthroscopic surgical method in patients with anterior shoulder dislocation associated with Hill-Sachs lesion.     Methods:   Ten patients with anterior shoulder dislocations and Hill-Sachs lesions were entered into this study and were operated on by the remplissage arthroscopic surgical method. They were followed up 22 months after surgery...

We exhibit relations between van Kampen-Flores, Conway-Gordon-Sachs and Radon theorems, by presenting direct proofs of some implications between them. The key idea is an interesting relation between the van Kampen and the ConwayGordon-Sachs numbers for restrictions of a map of (d + 2)-simplex to R to the (d+ 1)-face and to the [d/2]-skeleton. We exhibit relations between the following van Kampe...

The connection between the Bondi-Sachs (BS) and the Newman-Penrose (NP) framework for the study of the asymptotics of the gravitational field is done. In particular the coordinate transformation relationg the BS luminosity parameter and the NP affine parameter is obtained. Using this coordinate transformation it is possible to express BS quantities in terms of NP quantities, and to show that if...

Bernard Sachs studied nervous system disorders in children in the United States during the nineteenth and twentieth centuries. In the late 1880s, Sachs described the fatal genetic neurological disorder called amaurotic family idiocy, later renamed Tay-Sachs disease. The disorder degrades motor skills as well as mental abilities in affected individuals. The expected lifespan of a child with Tay-...

We provide proofs and commentary on parts of Bruno De Finetti’s paper ”About Correlation”. In particular we focus on De Finetti’s angle theorem, which he stated without proof and whose striking simplicity and power would seem to make it a natural candidate for any multivariate statistics text. We establish a connection between de Finetti’s angle theorem and ongoing research on the boundary of t...

BACKGROUND In addition to Bankart repair engaging Hill-Sachs defects in glenohumeral instability have been treated successfully with remplissage procedure. The purpose of this study was to compare three remplissage techniques regarding (I) ability of preventing Hill-Sachs defect from engaging, (II) influence on glenohumeral rotational torque, and (III) resulting tendon coverage over the Hill-Sa...

background:   to assess the outcome of the remplissage arthroscopic surgical method in patients with anterior shoulder dislocation associated with hill-sachs lesion.     methods:   ten patients with anterior shoulder dislocations and hill-sachs lesions were entered into this study and were operated on by the remplissage arthroscopic surgical method. they were followed up 22 months after surgery...

  Background: Open Bankart surgery is the main treatment procedure in patients with recurrent anterior shoulder dislocation, especially in cases with glenoid bone defect. The goal of this study was to determine the outcomes after open Bankart surgery in cases of recurrent anterior shoulder dislocation with glenoid bone defects and concomitant Hill-Sachs lesions. Methods: Between 2006 and 2010,...