This paper presents a novel method for identifying indentations on the boundary of solid 2D shape. It uses the signed curvature at a set of points along the boundary to identify indentations and provides one parameter for tuning the selection mechanism for discriminating indentations from other boundary irregularities. An efficient implementation is described based on the Fourier transform for ...

The loss of flexibility in a spinal curvature defines it as a structural spinal deformity; a curvature sufficiently mobile to resolve with a change in posture is a non-structural or 'functional' scoliosis which is within the normal limits of movement for a human spine. It, therefore, seems logical that exercise-based therapies designed to improve and/or maintain flexibility and range of motion ...

©2005 British Editorial Society of Bone and Joint Surgery doi:10.1302/0301-620X.87B8. 16151 $2.00 J Bone Joint Surg [Br] 2005;87-B:1029-37. Rationale for total lumbar disc replacement In the early 20th century, surgical fusion of one or more ‘functional spinal units’ (FSU) was developed and primarily performed for the treatment of spinal infection. 1-4 In the second half of the century, the ind...

curvature of the spine under the age of 10 years, are offered surgical treatment when the major curvature remains progressive despite conservative treatment. Spinal fusion is not recommended in this age group, as it prevents spinal growth and pulmonary development. A growth-sparing technique using traditional growing rods has been commonly used, but requires distraction under general anaesthesi...

In order to achieve high-accuracy measurement of radius of curvature of optical sphere, ultra-high accuracy radius of curvature testing device is developed by dual-frequency laser interferometer and Fizeau interferometer based on cat’s eye and confocal method. Through analyzing the error source models of radius of curvature testing, optical configuration of the testing device has been optimized...

Aims: To understand the sagittal and mobility characteristics of thoracolumbar segment spine in students specialising physical dance. METHODS: Sagittal curvature was measured 35 standard dance students, 41 Latin 43 general university using Spinal Mouse electrometer. Results: (1) In upright position, T9/10 to L4/5 significantly less dance-specific girls than regular female (p<0.05). (2) The T...

The spinal orthosis, the so-called rucksack type orthosis (RO), has been used to relieve low back pain and fatigue during prolonged standing and walking for the elderly with spinal deformities. However, little is known about the RO's kinematical effects. Twenty-three elderly (78.9 +/- 6.9 years old) participated in experiment 1, and 13 elderly (78.4 +/- 7.9 years old) in experiment 2. They had ...

Although considerable biomechanical investigations have been conducted to understand the response of the cervical spine under whiplash (rear impact-induced postero-anterior loading to the thorax), studies delineating the effects of initial spinal curvature are limited. This study advanced the hypothesis that abnormal curvatures (straight or kyphotic) of the cervical column affect spinal kinemat...

background current surgical treatments in peyronie's disease are accompanied by complications such as penile shortening, loss of sensation, erectile dysfunction and recurrence of disease. the aim of this study was the evaluation of clinical results of intracavernosal plaque excision in peyronie's disease. methods the operation was performed on 35 men. it was consisted of incising the ...