No abstract available

Polyethylene wear is one of the major problems following total knee arthroplasty. Many factors affect the degree and the pattern of polyethylene wear. We experienced three cases of early catastrophic poly- ethylene wears. All cases showed flexion contracture with severe genu varum deformity and total knee arthroplasty was performed with Advantim total knee prostheses in all cases. Postoperatively, bony align- ment and ligament balancing were good in all cases. However, in 12 to 22 months later, lateral subluxa- tion and valgus instability were developed with early catastrophic polyethylene wear especially in the medial compartments. Flat surface geornetry of polyethylene might be responsible for the development of lateral subluxation and early catastrophic wears. From these experience, we concluded that the mediolat- eral as well as anteroposterior dishing is essential for the stability of the artificial joint and prevention of early rapid wear of polyethylene articular inserts following total knee arthroplasty.
Arthroplasty ; Congenital Abnormalities ; Contracture ; Genu Varum ; Joints ; Knee ; Knee Prosthesis ; Ligaments ; Polyethylene*

No abstract available.
Anesthesia* ; Humans

STATEMENT OF PROBLEM: Macroscopic and especially microscopic properties of implant surfaces play a major role in the osseous healing of dental implants. Dental implants with modified surfaces have shown stronger osseointegration than implants which are only turned (machined). Advanced surface modification techniques such as anodic oxidation and Ca-P application have been developed to achieve faster and stronger bonding between the host bone and the implant. PURPOSE: The purpose of this study was to investigate the effect of surface treatment of titanium dental implant on implant stability after insertion using the rabbit tibia model. MATERIAL AND METHODS: Three test groups were prepared: sandblasted, large-grit and acid-etched (SLA) implants, anodic oxidized implants, and anodized implants with Ca-P immersion. The turned implants served as control. Twenty rabbits received 80 implants in the tibia. Resonance frequencies were measured at the time of implant insertion, 2 weeks and 4 weeks of healing. Removal torque values (RTV) were measured 2 and 4 weeks after insertion. RESULTS: The implant stability quotient (ISQ) values of implants for resonance frequency analysis (RFA) increased significantly (P < .05) during 2 weeks of healing period although there were no significant differences among the test and control groups (P > .05). The test and control implants also showed significantly higher ISQ values during 4 weeks of healing period (P < .05). No significant differences, however, were found among all the groups. All the groups showed no significant differences in ISQ values between 2 and 4 weeks after implant insertion (P > .05). The SLA, anodized and Ca-P immersed implants showed higher RTVs at 2 and 4 weeks of healing than the machined one (P < .05). However, there was no significant difference among the experimental groups. CONCLUSION: The surface-modified implants appear to provide superior implant stability to the turned one. Under the limitation of this study, however, we suggest that neither anodic oxidation nor Ca-P immersion techniques have any advantage over the conventional SLA technique with respect to implant stability.
Dental Implants ; Imidazoles ; Immersion ; Nitro Compounds ; Osseointegration ; Rabbits ; Tibia ; Titanium ; Torque

No abstract available.
Endometrial Neoplasms* ; Female ; Ovary*

No abstract available.
Acoustics*

No abstract available.

No abstract available.
Meconium* ; Peritonitis*

OBJECTIVE: The purpose of this study attempts to determine the endocrinologic characteristics and changes in glucose metabolism before/during pregnancy according to different body weights in women with Polycystic ovarian syndrome (PCOS). METHODS: 94 women dia with PCOS were evaluated through measuring serum hormone levels and oral glucose tolerance tests preconceptionally and gestationally. RESULTS: In patients who were of normal weight showed significantly increased serum LH levels compared to those who were overweight (12.8+/-0.9 Vs. 7.1+/-0.8 mIU/ml, p= 0.000), and the serum levels of insulin was increased significantly in the overweight group (7.1+/-0.7 Vs. 15.2+/-2.8 ulU/ml, p= 0.000). the IGFBP-I (32.8+/-10.6 Vs. 8.3+/-2.5 ng/ml, p=0.034) and SHBG (55.8+/-4.2 Vs. 37.1+/-3.1 nmol/ml, p= 0.001) were significantly lower in the ovnweight group. The oral glucose tolerance test before/after pregnancy showed increased frequency of abnormal glucose metabolism, in both of the non-obese group (38.8%, 26,9%) and the obese group (64.2%, 53.9%) compared with normal population. CONCLUSION: It is thought that in the normal weight group with polycystic ovarian syndrome androgen production is stimulated in the theca cells by abnormally high LH secretion, while in the overweight group the hyperinsulinemia state which decreases the SHBG and IGFBP-I, lead to increase biologically active hee androgens and IGF-I and increase insulin binding to its receptor. And during/before pregnancy, women with PCOS showed that incidence of abnormal glucose metabolism was significantly increased in both of non-obese and obese groups.
Androgens ; Body Weight ; Female ; Glucose Tolerance Test ; Glucose* ; Humans ; Hyperinsulinism ; Incidence ; Insulin ; Insulin-Like Growth Factor I ; Metabolism* ; Obesity ; Overweight* ; Polycystic Ovary Syndrome* ; Pregnancy* ; Theca Cells

OBJECTIVES: It is known that nutritionally depressed patients are approximately 40 to 50% among all of the hospitalized patients and these patients are more vulnerable to complications and delaying in recovery from their diseases than nutritionally normal patients . Exact nutritional assessment and support are one of important measures in treatment of the disease. Both subjective and objective methods of nutritional assessment has been applied usually for exact nutritional assessment and anthropometry has been used for objective assessment of nutritional state. METHODS: Author measured of anthropometry such as weight, height, triceps skin folds, midarm muscle circumference, and midarm circumference in order to get standard values of anthropometry in 2926 healthy korean adults from five different districts in Korea. RESULTS: The mean values of the height of Korean were 169+/-5.9 cm in male, and 156.3+/-7.9 cm in female and the mean values of 50 percentile of the height were 170 cm in male and 157 cm in female. The mean values of the body weight were 64.2+/-20.2 kg in male, and 54.5+/-7.4 kg in female and the mean values of 50 percentile of the body weight were 63 kg in male, and 54 kg in female. The mean values of TSF were 11.7+/-7.1 mm in male, and 18.5+/-7.6 mm and the mean values of 50 percentile of the TSF were 10 mm in male, and 18.0 mm in female. The mean values of the MAC were 26.7+/-3.3 cm in male, and 25.77+/-.90 cm in female and the mean values of 50 percentile of the MAC were 26.5 cm in male, and 26 cm in female. The mean values of the MAMC were 23.0+/-3.5 cm in male, and 19.95+/-3.0 cm in female and the mean values of 50 percentile of the MAMC were 23.0 cm in male, and 19.8 cm in female. CONCLUSION: The values of this study could be used as the korean standard values having some errors due to different study members, because it was done in large subjects who are living in five different districs in Korea.
Adult* ; Anthropometry* ; Body Weight ; Female ; Humans ; Korea ; Male ; Nutrition Assessment* ; Skin