scholarly journals DISTAL TIBIAL EPIPHYSEAL FRACTURES

2018 ◽  
Vol 140 (7-8) ◽  
pp. 200-205
Keyword(s):  
Epiphyseal Fractures ◽  
Tibial Epiphyseal

Surgical Indications for Distal Tibial Epiphyseal Fractures in Children

Orthopedics ◽  
2015 ◽  
Vol 38 (3) ◽  
pp. e189-e195 ◽  
Author(s):  
Haoqi Cai ◽  
Zhigang Wang ◽  
Haiqing Cai
Keyword(s):  
Surgical Indications ◽  
Fractures In Children ◽  
Epiphyseal Fractures ◽  
Tibial Epiphyseal

Distal Tibial Epiphyseal Fracture (Tillaux) and Capsular Interposition

2009 ◽  
Vol 99 (5) ◽  
pp. 435-437 ◽  
Author(s):  
Oguz Poyanli ◽  
Koray Unay ◽  
Kaya Akan ◽  
Korhan Ozkan ◽  
Ender Ugutmen
Keyword(s):  
Male Patient ◽  
Open Surgery ◽  
Fracture Line ◽  
Fracture Reduction ◽  
Direct Visualization ◽  
Case Presentation ◽  
Epiphyseal Fracture ◽  
Epiphyseal Fractures ◽  
Open Arthrotomy ◽  
Tibial Epiphyseal

Arthroscopic-assisted reduction is one recommended technique for pediatric distal tibial epiphyseal fractures. A 15-year-old male patient with a triplane distal tibial epiphyseal fracture (Tillaux type) was scheduled for arthroscopic reduction and pinning, which failed to provide adequate fracture reduction. Open surgery was subsequently performed, which revealed a capsular interposition in the fracture line attributable to an anterior capsular tear of the ankle. The possibility of capsular interposition should always be taken into consideration when problems such as those described in this case presentation are encountered in such patients. This is precisely why direct visualization either through arthroscopy or open arthrotomy is sometimes necessary. (J Am Podiatr Med Assoc 99(5): 435–437, 2009)

Bilateral Salter-Harris Type II Upper Tibial Epiphyseal Fractures

1987 ◽  
Vol 7 (4) ◽  
pp. 466-467 ◽  
Author(s):  
Ph. Merloz ◽  
C. de Cheveigne ◽  
J. Butel ◽  
J. E. Robb
Keyword(s):  
Type Ii ◽  
Epiphyseal Fractures ◽  
Salter Harris ◽  
Tibial Epiphyseal

Freeze-etch studies of epiphyseal growth plate cartilage reveal matrix vesicles associated with calcification

1978 ◽  
Vol 36 (2) ◽  
pp. 670-671
Author(s):  
Russell N. A. Cecil ◽  
H. Clarke Anderson
Keyword(s):  
Chromic Acid ◽  
Light And Electron Microscopy ◽  
Matrix Vesicles ◽  
Matrix Vesicle ◽  
Glycerol Solution ◽  
Sprague Dawley ◽  
Epiphyseal Growth Plate ◽  
Growth Plates ◽  
Sprague Dawley Rats ◽  
Tibial Epiphyseal

Unfixed proximal tibial epiphyseal growth plates were studied by freeze-etch to confirm the presence of extracellular calcifying matrix vesicles and to determine the substructure of matrix vesicle membranes as compared to plasma and other membranes of intact chondrocytes. Growth plates from 6-10 week old Sprague-Dawley rats were cut into 1x3 mm blocks whose long dimension was oriented either perpendicular or parallel to the long axis of the tibia. Some blocks were fixed at pH 7. 0 in 0. 2M cacodylate - buffered 2. 5% glutaraldehyde for 1 hour at 4ÅC. The blocks were immersed in 30% glycerol solution at 4ÅC for 1 hour, frozen in liquid nitrogen, and then fractured, etched for 2 minutes, and coated with platinum, carbon and 0. 2% Formvar solution. The replicas were cleaned with chromic acid, floated onto Formvar coated grids, and examined with a Phillips EM 300 electron microscope.Fixed and unfixed specimens appeared similar in ultrastructure. Chondrocytes, matrix, and matrix vesicles were identified. In specimens fractured parallel to the long axis of the tibia, the reserve, proliferative, hypertrophic, and calcifying zones could be discerned as described by light and electron microscopy.

MICROCHEMICAL ANALYSIS OF HUMAN TIBIAL GROWTH CARTILAGE IN VARIOUS FORMS OF DWARFISM

1972 ◽  
Vol 69 (4) ◽  
pp. 659-688 ◽  
Author(s):  
V. Stanescu ◽  
R. Stanescu ◽  
J. A. Szirmai
Keyword(s):  
Growth Plate ◽  
Chondroitin Sulphate ◽  
Epiphyseal Plate ◽  
Molecular Characteristics ◽  
Growth Disorders ◽  
Normal Children ◽  
Collagen Concentration ◽  
Vitamin D Resistant Rickets ◽  
Pooled Samples ◽  
Tibial Epiphyseal

ABSTRACT Microchemical determinations of glycosaminoglycans and collagen were preformed in isolated histological zones from sections of tibial epiphyseal plate biopsies obtained from children with growth disorders (pituitary dwarfism, congenital myxoedema, Turner's syndrome, Noonan's syndrome, mucopolysaccharidosis type VI, vitamin D resistant rickets and achondroplasia). Alternate sections were used for histochemical localization of glycosaminoglycans and proteins. The values were compared with those found in comparable zones of the growth plate from normal children of the same age. The chondroitin sulphate concentration (% of defatted dry wt.) in the normal epiphyseal plate increased from the resting zone towards the proliferating/hypertrophic zone; collagen exhibited a reverse trend. In some of the pathological biopsies the concentration of chondroitin sulphate was slightly decreased whereas that of collagen was slightly increased. A marked increase in the collagen concentration was found in achondroplasia. The solubility profiles of the cetylpyridinium complexes of the chondroitin sulphate fraction showed three main peaks with slight but characteristic differences in the various zones of the normal cartilage plate. Significant shifts in the proportion of these peaks were observed in several pathological biopsies, indicating possible deviations from the normal molecular characteristics of the chondroitin sulphate. Analysis of the main chondroitin sulphate fraction, obtained from pooled samples of normal tibial growth plate after fractionation on the macroscale, indicated that all three peaks contained both chondroitin-4 sulphate and chondroitin-6 sulphate and that they probably differed in their molecular weight.

Human placental lactogen inhibits growth without changing serum levels of IGF-1 in rats: an apparent specific action of the hormone

1992 ◽  
Vol 127 (2) ◽  
pp. 146-151 ◽  
Author(s):  
Mimi H Chiang ◽  
Charles S Nicoll
Keyword(s):  
Epiphyseal Plate ◽  
Skeletal Growth ◽  
Female Rats ◽  
Placental Lactogen ◽  
Total Serum ◽  
Inhibitory Effects ◽  
Growth Inhibitory ◽  
Growth Promoting ◽  
Tibial Epiphyseal ◽  
Plate Width

Previous work in our laboratory has shown that the internal environment of rats has reduced growth-promoting activity during the second half of gestation and this condition is associated with resistance to the anabolic effects of GH. The placenta appears to be responsible for this condition but injections of estradiol plus progesterone into virgin females did not mimic it. Accordingly, it seemed worthwhile to test the effects of a placental lactogen (PL) for possible growth inhibitory effects. In the present study the effects of human (h)PL on skeletal growth in young female rats and on the growth of embryonic tissue transplants under their kidney capsules were investigated. Human (h) and bovine (b) GH, and ovine prolactin (oPRL) were also tested to determine whether the results obtained with hPL were specific. Twice daily subcutaneous injections of a high dose of hPL (10mg/day), but not of oPRL (5 mg/day) for 7 days inhibited both host tail growth and tibial epiphyseal plate width, and growth of whole 10-day embryo transplants. Injections of hGH at 1 mg/day for 8 days significantly increased host skeletal growth and growth of 12-day embryonic head transplants; at the same dose, neither bGH nor oPRL affected growth of the embryonic heads or of the host tibial epiphyseal plate width, but the bGH increased host tail growth. By contrast, the 1 mg/day dose of hPL significantly reduced the host's tibial epiphyseal plate width, tail growth, and transplant growth; lower doses of hPL (10 and 100 μg/day) were also inhibitory. Although all the hormone treatments increased total serum IGF-1 levels in the females, none of them had a significant effect when compared to saline injected control animals. Thus, the growth-inhibitory effects of hPL treatment appear to be specific to that hormone and they are not mediated by depression of serum IGF-1 levels. If these effects of hPL are mimicked by one or more of the rodent PLs, then the reduced growth-promoting activity and resistance to GH action that occurs in pregnant rats could be due to the rat PLs. These results indicate that in addition to having glucose-sparing effects in the mother, PLs could promote fetal growth by inhibiting growth of maternal tissues, which would thus spare other metabolites, such as amino acids and vitamins, for the conceptus.

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