No abstract available.

One case of osteoid osteoma in the lamina of the fifth lumbar spine with hamstring muscle tightness was experienced and successfully treated by surgery at the department of orthopedic surgery in Seoul National University Hospital. Literature on the subject was reviewed in detail.
Muscle Tonus ; Orthopedics ; Osteoma, Osteoid ; Seoul ; Spine

No abstract available in English.
Arthritis, Infectious ; Dislocations ; Hip

We have experienced two cases of the intramedullary ependymomas in the cervicothoracic and thoracolumbar spinal cord. The myelographic studies showed complete block or fusiform filling defect of the dye and they were treated by total laminectomy with excision of the tumor mass. The histological studies verified them ependymomas and the patients have shown good improvement of the neurological defecits in postoperative period.
Ependymoma ; Humans ; Laminectomy ; Postoperative Period ; Spinal Cord

There have been numerous hypotheses about the pathogenesis of idiopathic scoliosis, but it is still unclear. There are some reports that abnormalities of contractile proteins may play a role in the pathogenesis of idiopathic scoliosis. The purpose of this report is to study the quantitative abnormalities of contractile proteins in muscles and nonactivated and activated platelets, and to determine whether or not the abnormalities in contractile proteins may play a role in the pathogenesis of idiopathic scoliosis. The materials were 21 idiopathic scoliosis patients aged from 13 years to 28 years(average 19.2 years) and 20 persons aged from 17 years to 25 years(average 20.1 years) as a control group. The electrophoretic analysis(SDS-PAGE method) was done on platelets both unstimulated and stimulated with thrombin and also on proteins of paraspinal muscles and gluteus maximus of idiopathic scoliosis patient and paraspinal muscles of control group. The results are as follows. 1. The myosin/actin ratios of triton-insoluble fractions to paraspinal muscles in convex sides of main curvatures of scoliosis patients(1.69±0.81) were significantly decreased compared to those of concave sides(2.55±1.28), gluteus maximus muscles(2.56±1.70) and control group(2.61±1.01). 2. There were no significant differences between scoliosis group and control group in the actin/myosin ratios of triton-insoluble fractions of the platelets both nonactivated and activated by thrombin. In conclusion, abnormalities of contractile protein in paraspinal muscles of convex side may play a role in the pathogenesis of idiopathic scoliosis, rather than abnormalities of systemic contractile protein.
Actins ; Blood Platelets ; Contractile Proteins ; Humans ; Muscles ; Myosins ; Paraspinal Muscles ; Scoliosis ; Thrombin

Metaphyseal Chondrodysplasia is a disease characterized by metaphyseal ossification leading to shortening of stature. The extremities, especially lower, and mainly affected, resulting in a disproportionate drarfing which spares the trunk. The first case was reported in a patient with irregular metaphysis of lower extremities and hands, and severe shorteness of stature by Murk Jansen in 1934. A milder form of Metaphyseal Chondrodysplasia was noted in 1949 by Schmid, which is more common and transmitted in autosomal dominant. Mckusick recently reported another form of Metaphseal Chondrodysplasia, and other types were reported, but they are extremly rare, and of little clinical significance. In the Schmid type, patient is normal at birth, but characteristically shortness of stature, bowed leg, and waddling gait developed at biginning of walking. Ali labratory findings including serum calcium level, phosphorous, alkaline phosphatase, renal function test is normal in Metaphyseal Chondrodysplasia. The most difficult differential diagnosis is Vitamin D-resistant rickets in clinical and x-ray findings. The only treatment is careful observation and properly timed corrective surgery. Authors experienced on case of Schmid type of Metaphyseal Chondrodysplasia which had been treated with Vitamin D under impression of rickets for 1 year before the case was consulted to Orthopedic Department. Proximal tibial osteotomy and subtrochanteric valgus osteotomy were performed for the correction of genu varum and coxa vara deformity with satisfactory results for one year follow up.
Alkaline Phosphatase ; Calcium ; Congenital Abnormalities ; Coxa Vara ; Diagnosis, Differential ; Extremities ; Follow-Up Studies ; Gait ; Genu Varum ; Hand ; Humans ; Leg ; Lower Extremity ; Orthopedics ; Osteotomy ; Parturition ; Rickets ; Rickets, Hypophosphatemic ; Vitamin D ; Walking

No abstract available.
Scoliosis*

No abstract available.
Diagnosis* ; Magnetic Resonance Imaging* ; Spinal Stenosis*

No abstract available.
Spondylolisthesis*

Cervical spine injury, because of its increasing frequency and catastrophic neurological complication, has attracted many attention of every orthopedic surgeons. Moreover, the indications of surgical treatment and the indications of anterior or posterior fusion have been argued till now. Forty-one patients with cervical spine injury had been treated operatively at Department of Orthopedic Surgery, Seoul National University Hospital from January, 1980 to April, 1987. The surgically treated patients were followed up from 1 year to 7 years with average duration of 2.5years. We performed this study to define the advantages of the surgical treatment, the indications of the anterior and posterior fusion, the postoperative neurological changes, the importance of early reduction, and the result of surgical treatment in late instability cases and obtained the following results. 1. Flexion-rotation injury, in twenty three patients(56.0%), was the most frequent mechanism of injury. 2. Anterior decompression and fusion was performed in 8 patients(19.5%) when there were neural compression by fractured bone fragment or ruptured intervertebral disc material and rupture of anterior longitudinal ligament with hyperextension injury, without poterior ligament complex injury, and posterior fusion and wiring in 33 patients(80.5%) when there were upper cervical spine(C1, C2) injuries and posterior ligament complex injury. 3. Neurological involvements were observed in 35 patients(85.4%) on arrival, and partial and complete neurological recoveries were obtained in 20 patients(57.1%) out of 35 patients postoperatively. 4. Neurological recovery was obtained in 80% when the closed reduction was performed within 12 hours after the injury and only 40% after 12 hours. 5. Neck pain and/or neurology was improved in all 9 patients with late instability postoperatively. 6. Postoperative complication rate was totally 43.9%, but direct surgical complications were 2 cases(4.9%) out of 18 cases.
Decompression ; Humans ; Intervertebral Disc ; Ligaments ; Longitudinal Ligaments ; Neck Pain ; Neurology ; Orthopedics ; Postoperative Complications ; Rupture ; Seoul ; Spine ; Surgeons