Herniated intervertebral disc(HIVD) of the lumbar spine has been known to be relatively uncommon in the teenager and frequently be associated with trauma. However, with the changing life style and increasing sports activities, and most of all, with the advent of new imaging modalities, the incidence seems to be increasing gradually. In order to define the characteristic pattern of HIVD of teenager in the era of MRI, and to clarify the associated lesions, such as apophyseal ring fractures, authors performed this retrospective study in 55 teenager patients with HIVD(77 discs), in which MRI was used as main diagnostic modality. The following results were obtained 1) The incidence of the HIVD in teenager was 9.6%(55 patients) of total HIVD patients(575 patients) for 4 years from December 1989 to December 1993. 2) According to MRI findings, HIVD of the teenager could be classified into 3 distinct patterns; simple HIVD, lumbar apophyseal ring fracture(LARF), and vertebral rim lesion. 3) In simple HIVD, as for the MRI classification, protruded type was most frequent type and there was no sequestered type 4) In LARF, the incidence was 14.4% of teenager's HIVD and posterocephalad margin of L5 was the most common site of involvement. 5) Exophytic bony protrusion from the posterior margin of vertebral body, which we called vertebral rim lesion, could be defined on MR sagittal view in 6 cases.
Adolescent ; Classification ; Humans ; Incidence ; Intervertebral Disc ; Life Style ; Magnetic Resonance Imaging ; Retrospective Studies ; Spine ; Sports

This paper presents the result and statistical analysis of the experiment, in which selective anterior or posterior rhizotomy were carried out under microscopic surgery. The materials used for the experiment were 48 young rabbits, and they were divided into four groups. The group I, which was used as control, was subjected to lower dorsal bilateral laminectomies with dural incision, the group II to laminectomies with three right posterior rhizotomies, the group III to laminectomies with three right anterior rhizotomies, and the group IV to laminectomies with three right anterior and posterior rhizotomies. Scoliosis was induced in group Il, Ill and IV. There was no significant statistical difference in the degrees of curvatures among these three groups. The convexity of the curvature faced to the side of the divided roots. In group III and IV, scoliotic curvatures were obvious within two weeks, but there were no considerable changes thereafter. In group Il, the curves progressed slowly up to the 12th week. They were statistically significant at the 4th week and increased continuously thereafter. The histological findings in the group III and IV showed denervation atrophy of the paravertebral muscles at the apex of the curvature, but there was little or no muscle atrophy in the group I and II. We came to a conclusion from the experimental results that scoliosis may be induced not only by anterior root paralysis but also by selective posterior root paralysis.
Atrophy ; Denervation ; Laminectomy ; Muscles ; Muscular Atrophy ; Paralysis ; Rabbits ; Rhizotomy ; Scoliosis

Urolithiasis is one of the most common diseases of the urinary tract and the incidence has been increasing in recent years. The author made a clinical observation on 312 cases of clinical significance among the 375 cases of urolithiasis admitted to the Department of Urology, Presbyterian Medical Center, Daegu, Korea during the period from August, 1970 to July, 1976. The following results were obtained: 1. Among total admissions (1,400 cases), those with urolithiasis were 375 cases (26.8%), being the most common disease of the urinary tract. 2. Age distribution was between 2 and 85 years, showing the highest incidence in 21 to 50 years (74.1%). 3. Among 312 cases of in-patients, 225 cases were male and 87 female with 2.6 : 1 ratio. 4. Stones were located in ureter (69.2%), kidney(18.6%), bladder(9.0%) and urethra (2.9%). 5. Among those with ureterolithiasis, 62.5% of all cases were located in the lower third of the ureter. 6. Among those with renal stones, those with stag-horn calculi and bilateral stones were 25.9% and 3.5% respectively. 7. Managements included surgical intervention (61.9%), manipulation with baskets and ureteral catheters(25.6%) and other conservative(expectant) treatments (12.5%). 8. Pyuria was present in 30.1% and positive urine cultures with more than 100,000 colony per ml were obtained in 27.3% of 216 cases. 9. Serum calcium and phosphorus showed normal ranges in all cases. 10. Quantitative urinary calcium was elevated in 12.5% of 56 cases (more than 300 mg% per 24 hr) and phosphorus was reduced in 21.4% (less than 700 mg% per 24hr).
Age Distribution ; Calcium ; Calculi ; Daegu ; Female ; Humans ; Incidence ; Korea ; Male ; Phosphorus ; Protestantism ; Pyuria ; Reference Values ; Ureter ; Ureterolithiasis ; Urethra ; Urinary Tract ; Urolithiasis* ; Urology

No abstract available.
Arthroscopy* ; Retrospective Studies* ; Temporomandibular Joint*

A clinical observation was made on 20 cases of vesicovaginal fistula admitted to the Department of Urology, presbyterian Medical Center during the period from Aug., 1970 through July. 1977 and the following results were obtained. 1. Among 36 cases of urinary tract fistula, the most commonly involved site was bladder(22cases) and the most common fistula type was vesicovaginal fistula (20cases). 2. Among 20 cases of vesicovaginal fistula, the most common age was between 30 and 50 years. 3. The most common etiology of vesicovaginal fistula was gynecological cause(9 cases). 4. The most common location of vesicovaginal fistula was trigone(13 cases) mainly. 5. On I.V.P. finding of vesicovaginal fistula, 11 cases were normal and 8 cases abnormal. 6. On cystoscopic findings of vesicovaginal fistula, 7 cases were normal, 11 cases abnormal, 3 cases combined with bladder stone and 1 case with vaginal stone. 7. On treatment of vesicovaginal fistula, suprapubic transvesical approach was performed in 9 cases, transvesical transperitoneal approach 4 cases, Foley catheter drainage 3 cases and ileal conduit 1 case. 8. Success rate of repair was 76.9%, suprapubic transvesical 66.7 % and transperitoneal transvesical 100%.
Catheters ; Drainage ; Fistula ; Protestantism ; Urinary Bladder Calculi ; Urinary Diversion ; Urinary Tract ; Urology ; Vesicovaginal Fistula*

No abstract available.
Scoliosis*

No abstract available.
Osteoblasts*

No abstract available.
Magnetic Resonance Imaging*

No abstract available.
Neurofibromatoses* ; Scoliosis*

No abstract available.
Electric Stimulation*