We conducted a retrospective study of 104 patients to examine the efficacy of two methods of urinary bladder management after total hip arthroplasty under spinal anesthesia. Patients who had total hip replacement was randomly assigned either to Group I, in which indwelling catheters were placed during the operation and removed the next morning, or Group II, in which urinary retention was managed by intermittent catheterization as needed. After the removal of the indwelling catheter, the patients in Group I had a lower incidence of urinary retention than those in Group II. Bladder distention(volume above 700ml) was more common in Group II and was associated with an increased need for subsequent long-term catheterization. There was no significant difference between the groups in the rates of urinary tract infection. We conclude that the short-term use of an indwelling catheter after extended surgery, such as joint replacement, reduces the incidence of urinary retention and bladder overdistention, without increasing the rate of urinary tract infection.
Anesthesia, Spinal* ; Arthroplasty, Replacement, Hip* ; Catheterization ; Catheters ; Catheters, Indwelling ; Humans ; Incidence ; Joints ; Retrospective Studies ; Urinary Bladder* ; Urinary Retention ; Urinary Tract Infections

This is a follow up study on consecutive series 50 patients of total hip arthroplasty to assess for transient leg-length inequality. The authors report a clinical experience of 50 patients who have been pelvis tilt before total hip replacement. Retrospectively reviewed for the presence of pelvic obliquity preoperative and at the 1, 3 and 6 months follow-up visits. The results were as follows. Fourty-eight patients(96%) with functional leg length inequality related pelvic obliquity were improved within 6months postoperative follow up period after total hip arthroplasty. Two patients(4%) had persistent functional leg length inequality that affected factors-old age, female and soft tissue tightness due to pelvic obliquity. We believe that in most of these patients, the transient functional leg length inequality has a self-limited course, whereas in a small number, the profoud sense of inequality remains.
Arthroplasty, Replacement, Hip ; Female ; Follow-Up Studies ; Humans ; Leg Length Inequality* ; Leg* ; Pelvis ; Retrospective Studies ; Socioeconomic Factors

The treatment of frozen shoulder should initially be conservative, with the emphasis on passive stretching of the capsular structures. If the patient's clinical progress stalls or the condition worsens, and his or her life style is disturbed enough, manipulation under gerneral anesthesia is indicated. The Authors practiced the passive manipulation under the general anesthesia on 7 patients of frozen shoulder, who had been treated at the Department of Orthopaedic Surgery, Yonsei University, Wonju College of Medicine, from March 1988 to April 1989. The results obtained were as follows:l. All seven patients achieved nearly full range of motion with minimal or no pain. 2. After 3 months of follow-up, all seven patients showed neither signs of readhesions nor recurrence of pain. 3. There were no complications, such as humerus shaft fracture and dislocation of shoulder.
Anesthesia ; Anesthesia, General ; Bursitis ; Dislocations ; Follow-Up Studies ; Gangwon-do ; Humans ; Humerus ; Life Style ; Muscle Stretching Exercises ; Range of Motion, Articular ; Recurrence ; Shoulder

The metallic failure is one of the annoying problems after fracture surgery. The seventeen cases of metallic failures after compression plate fixation were treated at the Department of Orthopaedic Surgery. Yonsei University Wonju College of Medicine between January, 1980 and December, 1988. The results were summerized as follows: l. Among 17 cases, 12(70.5%) were under 40 years of age and 14(80%) were male patients. 2. The sites of fracture of the seventeen cases; 12 femurs, 3 tibiae, and 2 radii. Of the cases, there were breakage of plates in 13 cases, bending 1 case and failure of screw in 3 cases. 3. The pattern of fracture: communited fracture
Femur ; Fractures, Bone ; Fractures, Open ; Gangwon-do ; Humans ; Incidence ; Male ; Osteoporosis ; Radius ; Tibia ; Transplants ; Weight-Bearing

No abstract available.
Thanatophoric Dysplasia*

OBJECTIVES: This study is for developing the prediction model of outpatient's revisit in target hospital. Using this model, hospital managers can make efficient customer relationship. METHODS: This is based on the medical record data of patients in target hospital (with 967 beds). They are divided into two groups, which are used each for different purpose. One(raw data) is used to make the prediction model of revisit and the other(test data) is used to evaluate the model. For raw data were used the 4,273 outpatient cases, where patients visited the first time between august and september in 2000, and visited till december in 2003. For the test data were used 9,392 outpatient cases, where patients visited the first time between august and september in 2003, and visited till december in 2006. That is, each data was selected from the outpatient's medical records for three-years. RESULTS: The decision tree model is better than the logistic regression model as prediction model of outpatient's revisit in target hospital. The decision tree model is evaluated more excellent in ROC curve and classification accuracy in test data. For predicting the outpatient's revisit, it is more useful to have 4 variables - non-insured expenses, special medical service, cooperation service with oriental medicine and visit via ER. We can predict the revisit of outpatients over 39.5% rate by these variables. CONCLUSIONS: By using decision tree model, target hospital can make more accurate prediction of outpatient's revisit and make good customer relation management. So, target hospital can use some CRM program including 4 variables. To make more useful model for other hospitals in Korea, each hospital managers need to understand more their hospital environment and patient's characteristics.
Data Mining ; Decision Trees ; Humans ; Korea ; Logistic Models ; Medical Records ; Medicine, East Asian Traditional ; Outpatients ; ROC Curve

BACKGROUND: Effective evaluation of an article's scientific merit requires familiarity with the methodology described, especially when quantitative techniques, such as statistical procedures, are invoked to clarify research findings or to summarize data. OBJECTIVE: The purpose of this study was to describe the frequency with which various statistical concepts were reported in journals important to dermatology. From these results, dermatologists can identify the major statistical skills needed to critically evaluate their literature. METHODS: All 376 original articles of the Korean Journal of Dermatology(KJD) and the Annals of Dermatology(KAD) during 1990-1994 were chosen for review. Each article was re-viewed to determine the statistical content. RESULTS: The two most commonly used statistical techniques in the two journals were mean and standard deviation. The t-test was the next most frequently used statistical technique in the reviewed journals, followed by non-parametric, chi-square test, orphan p, ANOVA, and correlation/regression. CONCLUSION: These results indicate the need for wider education about the use of descriptive and basic comparative statistics. It is impossible to evaluate the dermatological literature critically without these skills.
Child ; Child, Orphaned ; Dermatology* ; Education ; Humans ; Recognition (Psychology)

No abstract available.
Neurilemmoma*

No abstract available.
Myasthenia Gravis* ; Thymectomy*

Acquired tufted angioma is a benign, progressive vascular lesion that has a distinctive histopathologic appearance. We report a 31-year-old man with acquireed tufted angioma. Several reddish papules and plaque were present on the neck. The lesion had been present for 6 months. They had enlarged slowly, and were slightly tender. Histopathologic examination of the biopsy specimen showed round to ovoid cellular tufts of capillaries, most prominent in the middle to lower dermis.
Adult ; Biopsy ; Capillaries ; Dermis ; Hemangioma* ; Humans ; Neck