No abstract available.
Resin Cements*

A case of pathological hip dislocation in a child, aged 2 years 6 months, who had surgical treatment, is reported. The boy has history of osteomyelitis of right ilium at age of 10 month, which ended up with the right hip dislocation. Postoperatively cephalocotyloid relation of the right hip was very well reestablished during five years of postoperative observation. Through this case, it is reconfirmed that a child hip has a natural remodelling power even in case of hip joint destruction.
Child ; Dislocations ; Hip Dislocation ; Hip Joint ; Hip ; Humans ; Ilium ; Male ; Osteomyelitis

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

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

No abstract available.
Child* ; Diabetes Mellitus* ; Humans ; Insulin*

No abstract available.
Chondrocytes* ; Ear* ; Intercellular Signaling Peptides and Proteins*

Osteosarcoma is the most common primary malignant tumor in the orthopaedic field. Recently, the management of osteosarcoma was evolved in many aspects and the improved results were reported in many articles. The purpose of this study is to evaluate the changes of clinical findings and management modalities in osteosarcoma since 1980. We reviewed 127 osteosarcomas managed from 1980 to 1992. The Enneking surgical stage was as follows; stage I 12 cases, stage II 98 cases and stage III 17 cases. They were subclassified into classic(97 cases), parosteal(12 cases), telangiectatic(5 cases), secondary(4 cases), periosteal(2 cases), gnathic(2 cases), high grade surface(1 cases) and undetermined(4 cases). The disease-free survival rate was evaluated for the patients of stage II classic osteosarcomas treated with amputation(27 cases) or limb-salvage operation(23 cases), and average follow up period of them was 49 months. In 27 cases of amputation adjuvant chemotherapy was administered in 23 cases. And in 23 patients treated with limb-salvage operation, neoadjuvant and adjuvant chemotherapy were done in 19 cases and only adjuvant chemotherapy in 2 cases. The clinical changes since 1980 were as follows: (1) The mean duration from symptom onset to diagnosis was decreased gradually from 6.5 months(1980) to 3.1 months(1992). (2) The proportion of curative surgery was increased from 40%(1980) to 87%(1992) in stage I and II. (3) The proportion of limb-salvage operation was rapidly increased upto 88% since 1985. The 5 year disease-free survival rate of stage II classic osteosarcoma was 36% with amputation and 67% with limb-salvage operation.
Amputation ; Chemotherapy, Adjuvant ; Diagnosis ; Disease-Free Survival ; Follow-Up Studies ; Humans ; Osteosarcoma

To investigate the nature of artifacts caused by air and chemical shift by fat, a test tube phantom study was performed in 2.0T and 0.5T superconducting magnetic resonance imaging systems in various imaging sequences. Spatial mismapping and signal change made image distortion in spin echo images of the air-column and severe signal voids in gradient echo images. Chemical shift artifacts appeared in the planes of frequency-encoding axis as crescent-shaped signal voids and summated bright signals, Both artifacts were more prominent in high field strength, Images at 0.5T showed more severe artifacts in the T2-weighted images than those in the other sequences. As the acquisition matrix increased, truncation artifacts decreased and susceptibility artifacts in gradient echo images diminished. Familiarity with causes, appearances and mechanisms of various artifacts will help radiologists for interpretation of MRI.
Artifacts* ; Magnetic Resonance Imaging* ; Recognition (Psychology)

BACKGROUND: Osteoporosis results from bone loss due to menopause [estrogen(E) deficiency] and aging. Initial skeletal effect of menopause is accelerated bone resorption with an increase in seurm calcium(Ca) and compensatory but inadequate bone formation. Secretion of parathyroid hormone(PTH) is suppressed at this time. Postmenopausal osteoporosis results in fractures predominantly of trabecular bone, i.e., vertebra. With aging, secondary hyperparathyroidism by low serum Ca and vitamin D deficiency superim poses. Senile osteoporosis produces hip fractures, area of cortical bone. The aim of this study was to- examine the association of vitamin D[25(OH)D] and intact(i) PTH with bone mineral density(BMD) after controlling for suggested confounding factors, and the possibility of low serum vitamin D and high serum iPTH concentration could impact bone loss in Korean postmenopausal women. METHODS: Data from 188 postmenopausal Korean women aged 42 to 69 were analyzed through BMD, serum 25(OH)D, iPTH, Ca, phosphorus(P), alkaline phosphatase(ALP) and clinical characteristics. Factors affecting BMD was determined by Pearson correlation and the relationship between lumbar and femoral neck BMD and vitamin D[25(OH)D] and iPTH was assessed by multiple regression analysis after adjus- ting for suggested confounding factors. RESULTS: Lumbar and femoral neck BMD, serum Ca, P were decresaed and serum iPTH was increased with aging. In Pearson`s correlation, significant contributing factors to lumbar BMD was age, height, weight, menarche, year since menopause(YSM) and ALP. And significant contributing factors to femoral neck BMD was age, height, weight, menarche, YSM and iPTH. No relationship could be demonstrated between serum vitamin D[25(OH)D] and lumbar and femoral neck BMD. How ever, after controlling for potential confounding factors, a correlation was found between vitamin D[25(OH)D] and both of lumbar (p=0.013) and femoral neck BMD(p=0.077). iPTH was inversely related to femoral neck BMD(p=0.004) only in multiple linear regression. CONCLUSION: Serum vitamin D[25(OH)D] was influencing both of vertebral and femoral neck BMD, which suggests a significant role of vitamin D deficiency in the pathogenesis of postmenopausal osteo- porosis. In age related remodeling and loss of bone, increased serum iPTH might have additive role in cortical bone of femur. These findings suggest that vitamin D is very important for optimal bone health and a deleterious effect of increased iPTH on cortical bone loss. Adequate calcium and vitamin D status have to be maintained to prevent osteoporosis in postmenopausal Korean women.
Aging ; Bone Density* ; Bone Resorption ; Calcium ; Female ; Femur ; Femur Neck ; Hip Fractures ; Humans ; Hyperparathyroidism, Secondary ; Linear Models ; Menarche ; Menopause ; Osteogenesis ; Osteoporosis ; Osteoporosis, Postmenopausal ; Parathyroid Hormone* ; Spine ; Tolnaftate ; Vitamin D Deficiency ; Vitamin D* ; Vitamins*

Fracture of the tibial shaft is one of the most common fracture of the long bones and, due to its frequency and easy accessibility to traumatic insults, it is frequently complicated with malunion, delayed union and nonunion, and osteomyelitis. Recently, closed flexible intramedullary nailing of the fracture of the long bones has gained popularity. And its application to the tibial shaft fracture is reported to meet the object of fracture treatment by providing maintenance of reduction and by allowing early mobilization of the injured leg. There are other advantages such as stimulation of forming external callus by allowing some motion at fracture site, adequate fixation without exposure of the fracture site. Authors carried out retrospective study of the 56 tibial shaft fractures in 54 patients which were fixed with Rush nails (31 tibial fracture in 30 patients) or Ender nails (25 tibial fractures in 24patients). The results were analyzed to compare the effectiveness of these two methods. The results were as follows: 1. Tibial fracture treated with rush nailing united clinically at 15.7 weeks and united radiologically at 21.8 week on an average postoperatively. 2. There was a tendency of earlier healing of fracture of tibial shaft treated with Ender nailing:clinical union and radiological union were obtained at 12.8 weeks and 18.8 weeks on an average, respectively. 3. Ender nailing has advantage such fracture fragment during insertion. 4. Additional insertion of Ender nail as ease of nailing, low incidence of displacement of undisplaced provided greater stability at the fracture and it was attributable to earlier healing of tibial fracture treated with Ender nailing. 5. Rush and Ender nailings failed to maintain reduction of the fracture of proximal tibia shaft. As the advantages of Ender nailing surpass those of Rush nailing, authors have preference of Ender nailing in the treatment of the tibial shaft fracture.
Bony Callus ; Early Ambulation ; Fracture Fixation, Intramedullary ; Humans ; Incidence ; Leg ; Osteomyelitis ; Retrospective Studies ; Tibia ; Tibial Fractures