Year: 1906
Type: dissertation
Abstract: The forms of scoliosis are as follows (1) Scoliosis ossicularis•The pathological degeneration of the vertebrae which produces scoliosis ossicularis may be due to periostitis and osteitis of the vertebrae, to traum¬ atic affections, to osteomalacia, to rickets, to arthritis, to syphilis, and to scrofula.As a consequence of ;, any1 of these conditions the vertebrae become impaired, suppuration, caries or necrosis supervenes, and finally the vertebrae either undergo degeneration or, as a result of plastic pro¬ cesses, the shape and size of the individual verte¬ brae and their relations to one another are altered.Ankylosis or bony union of the vertebrae is a frequent consequence of such degeneration.Scoliosis brought about in this way usually presents special characteristics in each individual, so that a general law cannot be formulated.(2) Scoliosis ligamentaria.This arises from relaxation of the ligaments which support and give strength to the vertebral column, namely, the anterior common ligament, the posterior common ligament, the inter-vertebral fibro-cartilages/ fibro-cartilages, the intercrural ligaments (i.e., the ligamenta subflava), the capsular ligaments, the interspinous ligaments, the supraspinous liga¬ ment, and the intertransverse ligament.This var¬ iety of scoliosis is irregular in character, not following any general law.It is recognised principally "by individual vertebrae being no longer in line with the longit¬ udinal axis of the spinal column, and simultane¬ ously undergoing rotation round their axes, so that on external examination of the person's bach the spinous processes are seen to project in one place and to be depressed in another, some vertebrae being displaced to the left side and others to the right.(3) Scoliosis Musctilaris.This variety of scoliosis originates in the following way.The Vertebral column is protected against lateral flexion by muscles placed symmetrically on the right and left sides and antagonistic in their action.When this antagonism is no longer maintain¬ ed the dorsal spine becomes curved to that side on which the muscular action os most powerful.The muscular antagonism may be interfered with when one j of the mutually opposing muscles is either altogether absent/ -
Source: ERA
Author: E. G. Ffrench
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2807697299