No abstract available.
Angiomyoma ; Ear

PURPOSE: To evaluate the findings and the role of contrast enhanced magnetic resonance imaging in avascular necrosis of femoral head. MATERIALS AND METHODS: Sixteen patients with avascular necrosis of femoral head were examined with MRI. Tl-weighted and T2-weighted images and contrast-enhanced Tl-weighted images were obtained. Enhancing characteristics of the necrotic area and synovium were determined. Also a change of the disease extent after enhancement was assessed. RESULTS: Twenty seven avascular necrosis of the femoral head including 11 cases of bilateral lesion were detected. Fifteen cases revealed collapse of the femoral head. The portions of the lesion with low signal intensity on Tl-weighted images and high signal intensity on T2-weighted images showed contrast enhancement in 15 cases. However, the portions with low signal intensities both on T1 and T2-weighted images showed enhancement in one case. There was no significant change of the disease extent after enhancement. Synovium showed enhancement in 18 cases, and joint effusion was detected in 23 cases. CONCLUSION: Contrast enhanced MR images may be helpful in predicting histopathologic findings of avascular necrosis of the femoral head, but not useful for evaluating the extent of disease.
Head* ; Humans ; Joints ; Magnetic Resonance Imaging* ; Necrosis* ; Synovial Membrane

Authors have anthropologically measured the human skeleton from a Dugmoe Tomb of the technopolis of Kwang-ju city. The results obtained were as follows : 1. The human skeleton was thought to be constructed at the beginning of the period of the Chosun, judging from the Dugmoe Tomb. 2. It is female and its stature is estimated as about 163-165cm. The age of the skeleton is estimated to be late 50. 3. The cranial index is 77.09mm and the type is mesocephaly. 4. The cranial length-height index and the cranial breadth-height index were hypsicrane and acrocephaly. 5. The orbital index 95.0mm and the type is hypsiconch. 6. The humerus is comparatively long, slender and has more rounded diaphysis. 7. The femur is similar that of present day, and the type is platyer. 8. The abrasion of the occlusal surface of the teeth was 2.5 point.
Craniosynostoses ; Diaphyses ; Female ; Femur ; Gwangju* ; Humans* ; Humerus ; Orbit ; Skeleton* ; Tooth

No abstract available.
Bone Density*

There have been several reports that nasal bone fractures are inadequately managed. They are probably due to poor understanding of the pathophysiology of nasal bone fracture and absence of the accurate diagnostic method. And there has been little adequate comprehensive classification of nasal bone fracture and nasal septal fracture. We examed 132 patients sustaining nasal bone fracture using computerized tomography. Fracture line, deviation, depression, associated skeletal deformities and the nasal septum were clearly identified. We compared our results with Murray & Maran's classification of nasal bone fracture. We found that they revealed almost same results and computerized tomography was good method for diagnosis of nasal septal fracture. The computerized tomography will be helpful for accurate diagnosis and preperative planning of the correction of nasal bone and septal fracture.
Classification ; Congenital Abnormalities ; Depression ; Diagnosis ; Humans ; Nasal Bone* ; Nasal Septum

PURPOSE: Algorithms to get cross-sectional bone density pattern(transverse histogram) to predict the loosening of hip prosthesis using DXA(Dual X-ray Absorptiometry) have been developed. We performed this study to analyze the correlation between radiologic findings and densitometric pattern of the THRA(Total Hip Replacement Arthroplasty) patients. MATERIALS AND METHODS: Thirty-six hips of 32 THRA patients were evaluated. The duration between THRA and DXA was from 1 year 7 months to 15 years. On transverse histogram, the periprosthetic bone density patterns were classified as 3 types;type I, rigid fixation in 17, type II, definite loosening in 8, and type III, partial loosening in 11 cases. Surgical findings, plain X-ray findnings and transverse histogram using DXA were correlated. RESULTS: Among 14 cases performing revision for acetabular prosthesis loosening, 5 cases revealed loosening of fernoral stems while 9 cases revealed rigid fixation of femoral stems. Sensitivity was 100% for either plain X-ray or DXA. Specificity was 88%, 77% for plain X-ray and DXA respectively. CONCLUSION: This preliminary study reveals that periprosthetic bone density pattern on transverse histogram on DXA may be useful in the evaluation of the loosening. However, further study will be needed for clinical application.
Acetabulum ; Arthroplasty, Replacement, Hip* ; Bone Density ; Hip ; Hip Prosthesis ; Humans ; Prosthesis Failure ; Sensitivity and Specificity

The presence of epicanthal folds in Asian eyelids is one of their unique features, in combination with the lack of supratarsal folds. Western culture has influenced many people to prefer to eliminate the prominent epicanthal fold. A number of surgical techniques have been suggested for their correction. However, difficulty with design, excessive and prominent scarring of medial canthal and nasal area, recurrence, and rigidity of application are potential problems associated with many procedures. This paper describes a epicanthoplasty with three-dimensional Z-plasty. Through epicanthal fold incision, the medial canthal tecdon is medially advanced and sutured to the periosteum of nasal bone. After the transposition of the flaps, trimming of the flap is usually required. Three-dimensional Z-plasty crates the attactive eyes. From March, 1995 to March, 1997, the technique was applied to 37 patients with epicanthal fold and was performed with or without double-fold operation. There were 34 females and 3 males with ages ranging from 17 to 30 years. Through 2 years follow-up, this techniques has delivered esthetically good results with minimal postoperative scar and could made the reduction of ICD from 40 +/- 2.13mm to 34 +/- 1.98mm. The advantages of epicanthoplasty procedure using three-dimensional Z-plasty(Yoon's method) are as follows; 1) simple in design 2) minimal postoperative scar in the medial canthal area 3) versatile in its application 4) no recurrence 5) no hypertrophic scar 6) preserving ethnic identity.
Asian Continental Ancestry Group ; Cicatrix ; Cicatrix, Hypertrophic ; Eyelids ; Female ; Follow-Up Studies ; Humans ; Male ; Nasal Bone ; Periosteum ; Recurrence

BACKGROUND: Early diagnosis and proper therapy of malfunctioning prosthetic heart valves remain a challange. Transthoracic echocardiography(TTE) is the diagnostic procedure of choice for the evaluation of malfunctioning prosthetic heart valves. Howerver, TTE may be limited owing to poor acoustic windows. Some of these limitations can be overcome by transesophageal echocardiography(TTE). METHODS: The study comprised 33 consecutive patients(20 male and 13 famale patients, age range 20 to 59) in congestive heart failure after remote mitral valve replacement with bioprosthesis. The patients were examined between 1987 and 1994. All the 33 patients were studied by TTE and 19 patients among these patients furthermore by TEE. The morphology of the explanted bioprosthesis was confirmed by surgery in all cases. RESULTS: The abnormalities of the bioprosthesis were diagnosed correctly by TTE in 32 cases. The more detailed morphology of the valves could be observed by TEE(19 cases). Only in one case a small thrombus in left atrium was overlooked in TTE examination, on the otherhand it was detectedd by TEE. The severity grade of mitral regurgitation was estimatedca. I' severer by TEE in 8 cases. In all TEE examination spontaneous echocontrast was observed in left atrium. The bioprostheses from CE(Carpentier-Edwards) showed higher tendency to cuspal tearing and perforation. CONCLUSION: TTE is the diagnostic procedure of choice on patients with bioprosthetic mitral valve replacement. TTE examination confirms immediately clinical diagnosis of bioprosthetic failure. The transesophageal approach promises more detailed informations about lesions of the degenerated bioprosthetic valves and left atrium.
Acoustics ; Bioprosthesis ; Diagnosis* ; Early Diagnosis ; Echocardiography, Transesophageal* ; Estrogens, Conjugated (USP)* ; Heart Atria ; Heart Failure* ; Heart Valves ; Humans ; Male ; Mitral Valve Insufficiency ; Mitral Valve* ; Thrombosis

Magnetic resonance (MR) imaging was performed in 41 patients with compression fracture of the spine. MR images of 14 patients with acute spinal trauma (within recent 1 month), eight patients with chronic trauma (over 1 month), and 19 patients with malignant cause without history of trauma were analyzed, retrospectively. Low signal intencities on T1-weighted images and high signal intensities on T2-weighted images were noted in 86% (12/14) of patients with acute trauma, Iso-signal intensities on all pulse sequences were noted in 50%(4/8) of patients with chronic trauma. Low signal intensities on T1-weighted images and high signal intensities on T2-weighted images were noted in 100%(19/19) of patients with metastatic compression fracture. Contrast enhancement was observed in all the cases of acute trauma(4/4) and metastases(18/18), whereas only 20% (1/5) of chronic trauma showed enhancement. Fragmentation was seen in 35% (5/14) of patients with acute trauma, in 25%(2/8) with chronic trauma, and not seen in the patients with metastasis. In conclusion, acute traumatic compression fracture can not be differentiated from malignant cause by MR signal intensity or contrast enhancement, but chronic compression fracture can be distinguished from metasasis. Fragmentation may suggest traumatic compression fracture. So MRI could be a useful method in differentiating the benign compression fractures from the pathologic ones caused by malignancy.
Fractures, Compression* ; Humans ; Magnetic Resonance Imaging ; Methods ; Neoplasm Metastasis* ; Retrospective Studies ; Spine

To evaluate the value of MR imaging in the examination of ligament injury of the knee, we retrospectively analysed the MR images of 61 injured knees of 60 patients. The presence of tear was determined by arthroscopy in all cases. Anterior/posterior cruciate ligaments(ACL/PCL) were demonstrated by sagittal images. Media/lateral collateral ligaments(MCL/LCL) were evaluated on coronal images. The diagnostic accuracy were 91.8%, 96.7% and 100% for ACL, PCL and MCL, respectively. The specificity for the lateral collateral ligament was 100%. It is concluded that magnetic resonance imaging is an accurate method in detecting injury of the ligaments of the knee.
Arthroscopy ; Humans ; Knee* ; Lateral Ligament, Ankle ; Ligaments* ; Magnetic Resonance Imaging ; Methods ; Retrospective Studies ; Sensitivity and Specificity ; Tears