Occupational Diseases / / May 16, 2016
The disease has a number of names of "pathological bone restructuring Surge", "broken by fatigue," "slow" or "creeping" fracture.Developed as a result of long-term effects on bone constant functional overload.At the same time most affected one, at least - a few bones.
Unlike true fracture violating the integrity of the bone is not, and there is only its restructuring, which the X-ray image gives the transverse illumination zone, simulating a true turning point.restructuring of the zone is specified in the bones and is strictly known locally as exactly where the bone is experiencing the maximum mechanical effects on the conditions of functional load.Most often suffer from limb bones, at least - the spine, ribs.
deserves special attention spondylolisthesis, which is defined anterior displacement of a vertebra due to resorption of the bow to form in her slit-like defect (spondylolysis), which is associated with long-term functional overload.Most affected low-lumbar vertebrae.In congested parts of the arc
These changes can be considered a manifestation of the occupational disease, if they are found in workers engaged in heavy physical labor.
7-10 days enhanced muscular exercise appear suddenly pulling bursting and localized pain in the affected bone and limb fatigue as a result of which the patient loses efficiency.Once the affected area is given rest, the pain subsides and may disappear completely.When X-ray revealed bone reconstruction area of a circle (often only by one half-cylinder).Without X-ray examination the true nature of the disease remains undiagnosed, and it is diagnosed as myositis, tenosynovitis, periostitis, sprains and so on. N.
When spondylolisthesis patients usually complain of pain in the lumbar region dull, aching character, evolved gradually.In other cases, workers associated with the acute onset of gravity lift.Pain aggravated by physical work, flexion and extension of the trunk.
Objectively marked pain and restriction of mobility of the spine in the lumbar spine, torso shortening, retraction at lumbosacral joints, overhanging skin folds on the belly and on the sides.Approaching the ribs to the iliac crest, which is typical for spondylolisthesis, it is observed only in severe, far advanced processes.The main role in the diagnosis of playing X-ray examination.The most valuable data provides a snapshot of the side, which is very useful when producing a vertical position of the patient, when the spine carries the maximum load.This helps to identify the main symptom - slipping vertebra.The degree of vertebral body anteversion correctly judged from the rear contour of the vertebral bodies as on the front surface (especially with regard to the underlying vertebra) are often observed compensatory bone razrascheniya lining the front of the spine contour.
Immobilization, termination for 2-3 months of work related to the load on the limb.When spondylolisthesis - the constant wearing an orthopedic corset or surgical treatment.
prognosis of pathological bone restructuring extremities is favorable, if the patient is transferred to another job and provided the affected limb at rest.In such cases, a few weeks operability can fully recover.This restored and normal X-ray bone pattern.
Spondylolisthesis is an irreversible condition (except when they receive a good effect after surgery), leading to restriction and sometimes to the loss of the patient's disability.