No abstract available.
Laryngostenosis*

Recently posterior stabilization with various instrumentation and fusion has been used for fractures of the thoracolumbar spine involving anterior and middle columns. However, these methods are sometimes inadequate to gain anatomical reduction and complete decompression especially in burst fractures. So anterior decompression and interbody fusion were frequently added as a second operation. Biomechanically a rigid anterior spinal instrument such as kaneda device can provide enough anterior decompression through partial or total corpectomy and adequate correction of kyphosis as an one stage operation. We have experienced 27 cases of Kaneda instrumentation via anterior approach for thoracolumbar fracture, most of them were burst fractures, from Jan. 1989 to June 1990. Of there 27 cases, 12 were followed up at least 1 year and reviewed. The results were as followed: l. Anterior spinal approach using Kaneda instrumentation provided sufficient anterior neural decompression and adequate correction of kyphotic deformity. It eliminates the second posterior procedure in most cases and enhances early solid union. Simultaneously, it allows early mobilization of patient with an application of brace. 2. Post-operative courses were eventful in most cases except a case of pathological fracture. 3. This procedure seemed to be one of the most suitable method for the treatment of burst fractures of the thoracolumber region. 4. Complications by Kaneda device itself were not developed in the early evaluation stage. However, on longer follow-up study over 1 year revealed some complications including 2 cases of screw breakage and one lateral wedging deformity.
Braces ; Congenital Abnormalities ; Decompression ; Early Ambulation ; Follow-Up Studies ; Fractures, Spontaneous ; Humans ; Kyphosis ; Methods ; Spine

No abstract available.

No abstract available.
Fractures, Spontaneous* ; Prostheses and Implants*

No abstract available.
Spine*

No abstract available.

Dermatofibrosarcoma protuberans (DFSP) is a rare, distinctive cutaneous tumor, which consists of spindle shaped ceils arranged in densely packed interlacing bundles with the storiform or cartwheel pattern. Histologically, it resembles deep growing dermatofibroma, nodular fasciitis, neurofibroma and neural sheath tumors. DFSP is one of t.he connective tissue tumors which is difficult. to diagnose histologically as well as clinically. Recently, the immunochemical staining with a monoclonal antibody to CD34 is reported to give assistance in the clear differential diagnosis of DFSP from other fibrous or neural tumors. Herein, three cases of DFSP were stained by immunohistochemical staining with S-100 protein, vimentin, factor VIII and anti-CD34 antibody in order to assess the use of anti-CD34 in the differential diagnosis of DFSP.
Connective Tissue ; Dermatofibrosarcoma* ; Diagnosis, Differential ; Factor VIII ; Fasciitis ; Histiocytoma, Benign Fibrous ; Neurofibroma ; S100 Proteins ; Vimentin

Authors measured the bone marrow pressure(B.M.P.) of 59 femoral heads in cases of either suspicious or diagnosed osteonecrosis and obtained the significant relationship between increased B.M.P. and the osteonecrosis. Increased bone marrow pressure provided both predictive and early diagnostic importance in even the preclinical stage of evolution of the disease, which subsequently had core biopsy proved osteonecrosis of femoral head. The results obstained were as follows; 1. Roentgenographically apperent osteonecrosis showed abnormal B.M.P. pattern, which were proved by the core biopsy. 2. In 21 cases of preclinical osteonecrosis, which did not show roentgenographic changes of osteonecrosis, measured B.M.P. parterns indicated as early stage of osteonecrosis in core biopsy at all. 3. The incidence of abnormal pressure pattern I was 51% and that of pattern II was 30%. 4. Enneking radiological staging did not correlate with the results of B.M.P. 5. The measurement of B.M.P. is relatively easy and simple method without any remarkable risk. The results of this study had great meaning in emphasizing the contribution of the bone marrow pressure measurement dianosing the preclinical stage of osteonecrosis, which had no roentgenographical changes and diagnostic symptoms.
Biopsy ; Bone Marrow ; Head ; Incidence ; Methods ; Osteonecrosis

No abstract available.
Hand*

Generalized narrowing of the retinal vessels has been recognized for glaucomatous and nonglaucomatous optic neuropathies. To evaluate how closely peripapillary retinal vessel diameters were related to functional and structural optic nerve damage in primary open-angle glaucoma, the data of the vessel diameters were correlated with intra- and peripapillary morphometric parameters and visual field indices. The diameters of the superior temporal and inferior temporal retinal artery and vein were measured at the opticdisc border from optic disc photographs of 234 eyes of 141 patients with primary open-angle glaucoma and 139 eyes of 86 normal subjects. Only one eye per patient and subject was taken for statistical analysis. The diameters of the inferior temporal and superior temporal retinal artery were significantly correlated with the intrapapillary parameters, the peripapillary parameters and the visual field indices. The correlation coefficients were highest for the neuroretinal rim data (r>0.37, p=0.0001), followed by mean deviation, vertical cup to disc ratios, whereas total peripapillary atrophy data, zone beta and zone alpha data were relatively low. Concerning the vessel diameter, the highest correlation coefficients were calculated for the inferior temporal artery, followed by the superior temporal artery. No correlation was found with age and refraction. The results indicate that, in primary open-angle glaucoma, the vessel diameter redduces with decreasing area of the neuroretinal rim, increasing visual field defects and increasing peripapillary atrophy. Its evaluation can be helpful for the diagnosis of glaucoma and possibly also for follow-up.
Atrophy ; Diagnosis ; Glaucoma ; Glaucoma, Open-Angle ; Humans ; Optic Nerve Diseases ; Optic Nerve* ; Retinal Artery ; Retinal Vessels* ; Retinaldehyde* ; Temporal Arteries ; Veins ; Visual Fields