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Biomedical subjects

G Dang

Publications and source records attributed to G Dang.

22 records · Page 2Linked to original sources
PubMed1995

[The pathogenetic factors for neurogenic intermittent claudication caused by degenerative lumbar spinal stenosis].

The pathogenetic factors in 89 patients with typical neurogenic intermittent claudication caused by lumbar spinal stenosis were studied retrospectively. 75 patients had degenerative lumbar spinal stenosis, and 67 had unilateral nerve root canal stenosis. In most patients, the stenotic location was found at the entrance zone of nerve root canal (75/89), involving only a single level (60/89) mostly at L4.5. The pathogenetic factors for degenerative lumbar spinal stenosis were degenerative changes of lumbar disc only (55/89), and those for hypertrophy of facet joints (22/89), thickened ligamentum flavum (11/89), and spondylolis thesis (10/89). All patients were operated on: 57 of them had less invasive procedures. The excellent and good early follow-up results were noted in 73% of the patients (65/89). The authors emphasized that the surgical treatment of lumbar spinal stenosis should be as less invasive as possible rather than a tranditional extensive lumbar laminectomy.

Adult↗
PubMed1995

[Foraminal and extraforaminal lumbar disc herniations].

Between August 1992 to November 1994, 7 cases of foraminal and 3 cases of extraforaminal lumbar disc herniation were diagnosed and operated on, which represented an incidence of 4.1% of all operated lumber disc herniations. Contrasted to the typical disc herniation, foraminal and extraforaminal disc herniations involved the upper nerve root mainly. The dominent symptoms and signs were severe anterior thigh and lower leg pain, positive femoral nerve strech test, impairment of knee jerk reflex and weakness of the quadriceps muscle. Sequestration and extrusion were the most common type of disc pathology. CT/MRI showed the protruded disc in and outside of the foramen clearly. It was thought to be ideal method for the precise diagnosis and guidance of surgery. However the variations of the nerve root or other diseases related to it should be identified. All of the 10 cases underwent surgical treatment with the approach by outer edge of pars interarticularis in 8. The result was encouraging with complete improvement in 8 cases, obvious improvement in 1 case, and partial improvement in another case. It was found that the approach had the advantage of good exposure and effect with the minimal destruction of pars interarticularis and facet joint which would not give rise to lumbar instability.

Adult↗
PubMedDate not supplied

Anterior intervertebral disc excision and bone grafting in cervical spondylotic myelopathy.

An analysis of 121 cases of cervical spondylotic myelopathy treated by anterior excision of the disc and fusion was undertaken. All patients were followed at least six months, and follow-up averaged 22 months. Results showed that 97.5% of patients had no aggravation of symptoms, 90.9% were improved, and 72.6% were able to resume normal activity. Surgical intervention can greatly improve the prospects of patients with severe cervical spondylotic myelopathy, and its use should not be lightly ruled out. Autografts yield higher fusion rates and better overall results than homografts. Selection of the number and level of discs to be excised depends upon clinical and roentgenographic indications, as well as the myelogram and the amount of fluid injected into the discs.

Adult↗