This report is of a 71-year-old woman who presented with a dropped head and difficulty in extending her neck. She was diagnosed with isolated neck extensor myopathy. Conservative treatment (use of a cervical collar and muscular strength training) temporarily improved her symptoms. However, destruction of cervical vertebrae and myelopathy progressed secondary to repeated microfractures from mech...

In one prospective study of injuries among players aged 9-19 years in football academies, 2% of overall football injuries were due to Sever's disease; the peak for incidence was in the under-11 age group. [4] Aetiology The line of ossification in the calcaneal apophysis is thought to develop microfractures due to recurrent stresses on the heel, combined with the growth spurt of puberty. As in s...

https://doi.org/10.4068/cmj.2018.54.1.78 C Chonnam Medical Journal, 2018 Chonnam Med J 2018;54:78-79 Corresponding Author: Kyung Ae Lee Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonbuk National University Medical School, 20 Geonji-ro, Deokji-gu, Jeonju 54907, Korea Tel: +82-63-250-2749, Fax: +82-63-254-1609, E-mail: [email protected] Article History: Received D...

Single or repetitive microfractures leading to vascular disruption of the fragments. Recurrent compression of the lunate between capitate and distal radius. Extreme wrist positions or repetitive compression loading of the wrist. Negative ulnar variance, which occurs when the ulna projects more proximally than the radius, leading to increased load transmission through the radio-lunate joint. Var...

We study the behavior of fracture in disordered systems close to the breakdown point. We simulate numerically both scalar (resistor network) and vectorial (spring network) models with threshold disorder, driven at constant current and stress rate respectively. We analyze the scaling of the susceptibility and the cluster size close to the breakdown. We observe avalanche behavior and clustering o...

In the experiment on the white Wistar female rats (222 animals), the osteoprotective effect of enalapril and losartan was studied on experimental models of osteoporosis and osteoporotic fractures. It was revealed that in rats after ovariectomy, the endothelial dysfunction of microcirculation vessels of osteal tissue develops, resulting in occurrence of osteoporosis and delay of consolidation of...

Abstract. Seismic faulting causes wall rock damage, which is driven by both mechanical and thermal stress. In the lower crust, co-seismic damage increases permeability, permits fluid infiltration triggers metamorphic reactions that transform rheology. Wall microstructures reveal high-stress conditions near earthquake faults; however, there limited documentation on effects of a pulse coupled wit...

We performed biopsies during reoperation for minor complications in two active young patients 9 and 19 months after massive bone allograft implantation for bone tumour. The grafts were dead and resorption-apposition activity, when present, was predominantly in subperiosteal areas. Inflammatory infiltration was very seldom found. Features considered as 'microfractures' or 'microcracks' were note...