No abstract available.
Pyloric Stenosis, Hypertrophic*

Variation in the facial pattern and effect of the rotational jaw growth on the facial proportion were studied in serial cephalometric radiographs of 40 Korean children (35 boys, 15 girls) ranging in age from 6 to 13 years. According to Y-axis (N-S-Gn) growth change during the 7 years of period, the subject who had exhibited "wave-like" manner of Y-axis growth change within +/- 2degrees was classified to the Parallelwise group and the subject who had exhibited Y-axis increase more than +/- 2degrees was classified to the Clockwise rotation group and the subject who had exhibited Y-axis decrease more than -2degrees was classified to the Counterlockwise rotation group. For the comparison of each group, a total of 22 morphologic variables were employed and the data were analyzed by means of computer morphometrics and statistical methods. On the basis of the finding of this study, the following trends were eatablished: 1. The Parallelwise group was 75%, the Clockwise rotation group was 12.5% and the Counterclockwise rotation group was 12.5%. 2. The growth pattern of cranial base was related to the rotation of mandible. 3. Maxillary prognathism was occured in the Counterclockwise rotation group and the rotation of palatal plane was occured in the Clockwise rotation group. 4. Mandibular prognathism was occured in the Parallelwise and the Counterclockwise rotation groups, especially in the Counterclockwise rotation group. 5. The degree of maxillo-mandibular divergency was constant in the Clockwise rotation group but decreased in the Counterclockwise rotation and the Parallelwise groups, especially in the Counterclockwise group. 6. There were no differences in the size of the anterior upper facial height (N-ANS) and the posterior lower facial height ((Go-Me)-PNS) but there were differences in the size of the anterior lower facial height (ANS-Me) and the posterior upper facial height ((S-N)-PNS) between each group. 7. The growth increment and the size of the facial gepth was not relater to the growth pattern of the face but the growth increment and the size of the facial height was related to the growth pattern of the face. 8. Proportional change due to the facial growth rotation was concentrated in the anterior lower face. 9. The most apparent difference between each group was happened in the size of the posterior cranial base (S-Ba) and the facial length (S-Gn).
Child ; Humans ; Jaw ; Mandible ; Prognathism ; Skull Base

A number of methods have been introduced for support the orbital floor following a maxillectomy without orbital exenteration or severe facial trauma. These methods including skin graft and muscular sling provided the unsatisfactory results, like as diplopia, orbital ptosis, enophthalmos and severe facial deformity. Therefore the bone and soft tissue reconstructions using microvascular free flaps were performed recently by many surgeons, but long time operation, donor site morbidity, postoperative large scar, and ptosis of the flap were pointed out as disadvantages of free flap reconstruction. Vascularized calvarial bone flap, a modified method of free calvarial bone graft, was adequate for reconstruction of the orbital floor and the infraorbital rim as a horizontal buttress, especially in case of poor vascular bed and postradiated state. The authors introduced the vascularized calvarial bone flap for the orbital floor and the infraorbital rim reconstruction in 3 cases of maxillectomy, and could be obtained satisfactory results aesthetically and functionally.
Cicatrix ; Congenital Abnormalities ; Diplopia ; Enophthalmos ; Free Tissue Flaps ; Humans ; Orbit* ; Skin ; Tissue Donors ; Transplants

No abstract available.
Hernia*

The extracellular matrix(ECM) is a complex network of different combination of collagens, glycosaminoglycans, laminin, fibronectin, and many other glycoproteins including proteolytic enzymes. The composition and organization of the ECM contributes to the uniques physical or biomechanical properties of a tissue. Fibronectins(FN) are dimeric glycoproteins located on cell surfaces, in the matrix of connective tissue, and in blood. Fibronectins mediate cell attachment to collagen substratum and have been implicated in a variety of important biological processes, including embryogenesis and cell differentiation. The purpose of this study was to determine the effects of surgical induction of anterior disk displacement(ADD) on distribution of fibronectin in the rabbit temporomandibular joint(TMJ) tissues included the articular cartilage, disc, retrodiscal tissue, articular eminence using an immunohistochemical technique. The left TMJ was exposed surgically, and all discal attachments were severed except for the posterior attachment. The disk was then repositioned anteriorly and sutured to the zygomatic arch. The right TMJ served as a sham-operated control. Normal joints were used as a nonoperated control. Fourty-five rabbits were used for experiments in total. For fibronectin immunohistochemical study, eighteen rabbits (one normal group and 5 experimental groups, each group consists of 3 rabbits) were used. The experimental rabbits were sacrified after operation period of 2, 3, 4, 6 and 8 weeks on fibronectin. The obtained results were as follows: 1. Fibronectin immunoreaction on all TMJ tissues(mandibular condyle, articular disc, retrodiscal tissue, articular eminence) in the normal rabbit was observed. Especially the reverse cell layer and proliferation zone of articular cartilage of condyle show strong positive reaction. 2. Depletion of fibronectin in the all TMJ tissues except hypertrophic zone of articular cartilage occurred at 2 weeks following induction of ADD. 3. The restoration of immunoreaction at 4 weeks was observed and a progressive increasing reaction at 6 weeks, 8 weeks also was found. Our study generally showed degenerative changes in TMJ tissues after ADD although TMJ tissues adapted or degenerated to abnormal loads and stress distribution according to the remodeling capacity of TMJ tissues.
Biological Processes ; Cartilage, Articular ; Cell Differentiation ; Collagen ; Connective Tissue ; Embryonic Development ; Extracellular Matrix ; Female ; Fibronectins* ; Glycoproteins ; Glycosaminoglycans ; Joints ; Laminin ; Peptide Hydrolases ; Pregnancy ; Rabbits ; Temporomandibular Joint* ; Zygoma

The authors analyzed 50 microsurgically treated middle cerebral artery(MCA) aneurysms among 266 intracranial aneurysms in the Department of Neurosurgery, Yonsei University Hospital from September 1975 through September 1982, in order to study the differences from those of other intracranial aneurysms, and analyze the surgical outcome versus preoperative clinical status of the patients, surgical timing, and the microsurgical techniques. The results of the analysis were summarized as follows ; 1) The middle cerebral artery aneurysms occupied 19.5% of the microsurgically treated intracranial aneurysms. 2) The brain CT scan showed subarachnoid hemorrhage in 77.5%, hemorrhage in the unilateral Sylvian cistern in 39.7%, and intracranial hematoma in 48.4%. 3) The most common location of middle cerebral artery aneurysms was the M1 M2 junction in 84%, and MCA bifurcation aneurysms occupied 44%, and trifurcation ones 40%. 4) Clipping with reinforcement of the aneurysms were performed in 74% of total cases due to difficult complete clipping of the aneurysmal neck. And the rest were wrapped. 5) The surgical timing was around the 3rd week after the last bleeding in most cases. 6) Patients in Botterell's grade I to III showed no motality and good surgical outcome. Only one case of grade V expired postoperatively, and morbidity was 10%.
Aneurysm ; Brain ; Hematoma ; Hemorrhage ; Humans ; Intracranial Aneurysm* ; Middle Cerebral Artery* ; Neck ; Neurosurgery ; Subarachnoid Hemorrhage ; Tomography, X-Ray Computed

No abstract available.

BACKGROUND: This study aimed to evaluate the abilities of transcranial magnetic stimulations(TMS) and electrical stimulations(ES) in predicting clinical recovery in patients with Bell's palsy and to contribute to the understanding of the relations observed between the clinical and electrophysiological time courses of the disease. METHOD: We serially studied 22 patients(9 males, mean age 42) with Bell's palsy. Facial nerve function was graded according to the House-Brackmann grading system. RESULTS: A side-to-side comparison(amplitude ratio) of the amplitude of evoked responses between the initial and follow up studies showed a significant change except for the TMS on the stylomastoid foramen. With the TMS over the parieto-occipital area, the absence of a compound muscle action potential(CMAP) was observed in 19 patients during the early course of the disease. The reappearance(n=14) of evoked muscle potentials after an initial absence was observed in 14 patients with satisfactory recoveries at the last follow-up study. The amplitude ratio of ES and TMS during the early course of the disease correlated with the clinical outcome. CONCLUSIONS: Our findings indicate that TMS and ES can provide an early prediction for the outcome of the palsy. The presence of CMAP at the acute phase or the reappearance of CMAP after an initial absence with TMS suggests a rather good prognosis. Both TMS and ES were found to be useful methods for the assessment of facial palsy and as early predictors for the outcome in patients with Bell's palsy. Serial neurophysiologic studies were also important for evaluation of the prognosis of facial palsy.
Bell Palsy* ; Electric Stimulation ; Facial Nerve ; Facial Paralysis ; Follow-Up Studies ; Humans ; Male ; Paralysis ; Prognosis* ; Transcranial Magnetic Stimulation

No abstract available.
Adult* ; Humans ; Lower Extremity*

Maffuci's syndrome is characterized by defects in cartilage bone formation (dyschondroplasia) with subcutaneous multiple vascular hemangiomas, and often with enchondromas. More than 120 cases of this syndrome, which was first described by Maffucci in 1881, has been reported. But intracranial tumors are rare complication of this syndrome. In this paper we describe the 6th case in the world report of Maffucci's syndrome complicated by an intracranial tumor, which was confirmed histologically as a chondroma, and review the literature with regard to this rare complication of Maffucci's syndrome.
Cartilage ; Chondroma* ; Hemangioma ; Osteochondrodysplasias ; Osteogenesis ; Sphenoid Bone