No abstract available.
Cartilage* ; Glutaral* ; Rabbits* ; Transplants*

PURPOSE: Because cryptorchid testes are known to undergo histopathologic changes affecting development, maturation, and tertility, early surgical correction is usually recommended. However there are differing opinions concerning whether retractile testes are affected by similar changes and also whether there is a need for surgical treatment. We aimed to assess the histopathologic changes in retractile testis by studying the changes in testes artificially placed back in the abdomen after they have descended to scrotum in experimental rat models. MATERIALS AND METHODS: Male Sprague-Dawley rats were divided into 3 groups; a control group(controls), prepubertal ascent group (P) in which testis were placed back intraabdominally by bilateral inguinal canal obstruction at 6 weeks, a neonatal group(N) in which intraabdminal testis was induced by bilateral inguinal canal obstruction at birth. The relative weight of the testis, morphology of the seminiferous tubules including Leydig cells, tubular degeneration phase(TDP), spermatogonia per tubules(S/T), and Sertoli cell index (SCI) of these three groups were analyzed and compared. RESULTS: The relative weight of testis was significantly decreased in the group of N(0.0016+/-0.001) and P(0.0015+/-0.0002) compared to controls(0.0037+/-0.0002) (p<0.05). The S/T value was also decreased in P(2.05+/-18.2) and N(73.2+/-32.4) when compared to controls (360.2+/-21.3). Similar changes were observed in SCI of both P(64.5+/-6.4) and N (91.2+/-14.2) when compared to controls (227.9+/-31.1). Only minority of N and P showed higher TDP values. However, although statistically insignificant, TDP was increased in both P and N when compared to controls. The Leydig cells in N and P showed cellular distortion and hypertrophy. CONCLUSIONS: This study demonstrate that prepubertal ascent, similar to that of innate cryptorchid testis, also can induce histopathologic changes such as changes in testicular seminiferous tubule, decrease in the S/T value and decrease in SCI value. Our findings supports that hypothesis that retractile testis may cause histological damage thus surgical correction may also be warranted similar to in case of genuine cryptorchism.
Abdomen* ; Animals ; Cryptorchidism ; Humans ; Hypertrophy ; Inguinal Canal ; Leydig Cells ; Male ; Models, Animal ; Models, Theoretical ; Parturition ; Rats* ; Rats, Sprague-Dawley ; Scrotum ; Seminiferous Tubules ; Spermatogonia ; Testis*

To identify the factors influencing the charges per case of acute appendicitis and normal spontaneous vaginal delivery (NSVD), the personal data-base files and hospital-characteristics-reporting data files of Korea Medical Insurance Corporation were analyzed. One hundred and twenty-nine institutions were selected. The results of this study were as follows: 1. The differences of charges per case with respect to hospital ownership, location, and equipment levels were statistically significant. 2. The results of multiple regression analysis revealed that bed capacity was the most significant variable in both diseases. 3. Ownership was significant variable in acute appendicitis. In NSVD, ownership and hospital equipment level were statistically significant. In conclusion, bed capacity was statistically the most significant variable in the analysis of charges per case. And we thought that the results of this study would influence the policy of the hospital bed supply.
Appendicitis* ; Information Storage and Retrieval ; Equipment and Supplies, Hospital ; Humans ; Insurance ; Korea ; Ownership

No abstract available.
Child* ; Humans ; Shigella* ; Vaginitis*

No abstract available.
Fingers* ; Replantation* ; Transplants*

No abstract available.
Fingers* ; Replantation* ; Transplants*

No abstract available.
Child* ; Humans ; Humerus*

Authors presented the gratifying result of treatment of chronic osteomyelitis with overlying skin defect and/or poor skin condition, which developed the wide skin necrosis after saucerization and resulted the second skin graft necessary. Five cases were treated by primary extensive saucerization of tibia which left a cavity with bleeding walls. The exposed bony surface with bleeding walls was covered by delayed free skin graft when the good granulation covered the bony surface. Through this experience, delayed free skin graft is justified the best procedure in these cases to cover the post-surgical raw bone surface and to have primary healing of the bone infection. A method of hemicylindrical pedunculated skin graft to obliterate the deeply excavated surgical bony defect is introduced.
Hemorrhage ; Methods ; Necrosis ; Osteomyelitis ; Skin ; Tibia ; Transplants

Lymphangioma is composed of lymphatic tissue and filled with clear or chylous fluid that develops most often in the skin and subcutaneous tissue of neck but relatively rare in extremities. It is perhaps a congnital malformation rather than a true neoplasm, and so most of these lesions are usually present at birth and have a tendency to grow very slowly. If it is developed with a cavernous type of lymphangioma, it will have more aggressive and infiltrative tendency because their margin is usually adhesive with adjacent normal tissue. A case of cavernous lymphangioma on the right wrist of an eight month old female infant, treated by surgical excision is followed up over one year and presented here with a review of the literature.
Adhesives ; Extremities ; Female ; Humans ; Infant ; Lymphangioma ; Lymphoid Tissue ; Neck ; Parturition ; Skin ; Subcutaneous Tissue ; Wrist

Preperative radiologic indices, such as cortical index of Engh, morphological cortical index of Sportono and Romagnoli, canal flare index of Noble, and their relationship to the postoperative canal filling, femoral stem fitness, stability and clinical result at last follow up were analyzed in 111 hips of 96 patients treated with bipolar or total hip arthroplasty at the Department of Chthopedic Surgery, Korea University Hospital, between January 1985 and May 1993. The results obtained were as follows: 1. The cortical index had no correlations with age, metaphyseal filling and clinical result but isthmic filling was proportional to the cortical index. In femoral stem fitness and stability, most cases of press fit and optimal stability were obtained in group 3 and 4 that have thick cortex. 2. The morphological cortical index had no correlation with age, canal filling and clinical results. But it was proportional to the postoperative femoral stem fitness and stability. 3. The canal flare index had no correlation with age. The metaphyseal filling was increased in the stove piped canal group(less than 3.0 canal flare index), but isthmic filling was increased in normal canal group(3.0-4.7 canal flare index). The most cases of press fit and optimal stability were obtained in normal canal group. More satisfactory clinical results were obtained in nomal canal group. Above results suggest that straight type of cementless femoral component could get better press fit fixation, postoperative stability and more satisfactory clinical results in the cases of cortical index larger than 2.0, mophological cortical index larger than 2.7 and canal flare index larger than 4.0 but metaphyseal filling is unsatisfactor.
Arthroplasty ; Arthroplasty, Replacement, Hip ; Follow-Up Studies ; Hip ; Humans ; Korea