introduction patellar dislocation is an emergency. vertical patellar dislocation is rare, often seen in adolescents and mostly due to sports injuries or high-velocity trauma. few cases have been reported in the literature. closed or open reduction under general anesthesia is often needed. we report a case of vertical locked patellar dislocation in a 26-year-old male, which was reduced by a simp...

Peculiarities of the spatial behaviour of the dislocation lines resulting from scattering of coherent radiation from random and fractal rough surfaces are studied. The technique of optical correlation is proposed for diagnostics of phase singularities in a complex speckle field by comparing the correlation lengths of amplitude and intensity of the local fields. It is shown that the dislocation ...

Two patients with Kabuki make-up syndrome with bilateral recurrent dislocation of the patella are presented. They had generalized ligamentous laxity and patellofemoral dysplasia. Both developed patellar dislocation in adolescence and required surgery, with medial transfer of the tibial tuberosity associated with vastus medialis plasty (Insall technique). One postoperative complication occurred ...

Object: Sacroiliac dislocation frequently poses a complex problem for the surgical management and stabilization because of the anatomical and biomechanical factors of this transition zone between the spine and pelvis. The authors had used a modification of the Galveston technique, originally described by Allen and Ferguson in the treatment of scoliosis, to achieve rigid spinal-pelvic fixation i...

This paper is concerned with the interaction between an interfacial edge-crack and a screw dislocation under out-of-plane mechanical and in-plane electric loading in a piezoelectric bimaterial strip. In addition to a discontinuous electric potential across the slip plane, the dislocation is subjected to a line-force and a line-charge at the core. Under the framework of linear piezoelectricity, ...

The objective of this manuscript is to show an effective, easier and cheaper way to reduce acute acromioclavicular (AC) dislocation type III and V (Rockwood classification). Numerous procedures have been described for surgical management of acromioclavicular joint disruption. Newest devices involve an arthroscopic technique that allows nonrigid anatomic fixation of the acromioclavicular joint. ...

INTRODUCTION Pure lateral elbow dislocation is rare, and a successful closed reduction is even rarer. Reduction can be hindered by swelling, soft tissue interposition or associated fractures. CASE PRESENTATION We present a pure lateral traumatic dislocation of the elbow joint in a 40-year-old man. This was successfully manipulated and reduced in casualty using a modification of the gravity-ai...

Crystalline thin fi lms are increasingly used in semiconductor devices, ferroelectric and ferromagnetic devices, biomedical components, fuel cells, solar cells, and wear-resistant coatings. Given their widespread use, understanding the unique mechanisms that control their properties is critical. This has proven challenging because the properties of thin fi lms do not obey bulk scaling laws. In ...

The shoulder joint has the greatest range of motion of any joint in the body. However, it relies on soft-tissue restraints, including the capsule, ligaments, and musculature, for stability. Therefore, this joint is at the highest risk for dislocation. Thorough knowledge of the shoulder's anatomy as well as classification of dislocations, anesthetic techniques, and reduction maneuvers is crucial...

The stress distribution and dislocation forces for screw dislocations near cavities and straight boundaries are examined, depending on the selected cut used to impose a displacement discontinuity and create a dislocation. The location of the equilibrium dislocation position is determined in each considered case. The slip-induced stress amplification in thin ligaments between a cavity and a stra...