The purpose of this study was to investigate the possibility of distraction osteogenesis in membranous onlay bone graft on the mandible and to clarify the histology of bone repair during distraction osteogenesis in the membranous onlay bone in a dog model. Four dogs, 5 months of age at the beginning of the experiment, were used for this study. The zygomatic arch was exposed in the subperiosteal plane and the full-thickness zygomatic arch was harvested to 3 centimeters in length. The lateral surface of the mandibular body was exposed in the subperiosteal plane and the membranous onlay bone graft was performed with firm contact using screws. The osteotomy on the membranous onlay bone graft and underlying mandibular body was carried down week 1 in dog 1, week 2 in dog 2, week 3 in dog 3, and week 4 in dog 4 after membranous onlay bone graft. The external distraction device was applied to the mandibular body. Mandibular distraction was started 7 days after the operation at a rate of 1mm per day for a total of 10 mm distraction over 10 days. After completion of distraction, the distraction device was left in place for 6 weeks bony consolidation of the distracted area. Radiographs were carried out at 2 weeks, 4 weeks and 6 weeks after distraction. New bone between the native underlying mandibular segments was generated in the distracted zone in all dogs. The new bone between the native underlying mandibular segments was generated in the distracted zone in all dogs. The new bone between segments of membranous onlay bone graft was not generated in dog 1, but it was generated in dogs 2, 3 and 4. However, in dog 2 and 3, the new bone between segments of the distracted membranous onlay bone graft presented less firmness with fibrous tissue than that of the native underlying mandibular segment. Histologically, the distracted gap between segments of the membranous onlay bone graft was composed of much fibrous tissue in the central zone while activated osteoblastic cells formed new bone in the margins of the distracted gap in dogs 2 and 3. In dog 4, there were abundant osteoblastic activities in the distracted gap and the new bone appeared as nearly-normal cortical bone. In conclusion, these findings suggested that membranous onlay bone graft had an osteogenic capacity and that distraction osteogenesis was possible in membranous onlay bone graft.
Animals ; Dogs* ; Inlays* ; Mandible ; Osteoblasts ; Osteogenesis, Distraction* ; Osteotomy ; Transplants* ; Zygoma

No abstract available.
Mediastinum*

Opacification of the gallbladder after parenteral administration of contrast material usually indicates diminished renal function but can occur with normal renal function. The authors recently experienced 13 cases of such vicarious excretion of contrast media. Among 13 patients. 9 patients had renal disease unilateral ureteral stone(n=3), staghorn calculi(n=2), acute renal failure from sepsis(n=1), renal contusion(n=2) and unilateral renal artery involvement by dissecting aortic aneurysm(n=1). Of these 9 patients, 3 patients showed abnormal serum creatinine levels at the time of presentation or shortly thereafter. In 6 patients, injection of a large amount of contrast media was possibly the additional cause of vicarius excretion. There was no detectable cause in the remaining 4 patients. Heterotopic excretion of contrast media is clearly a complex phenomenon, the reason for which it is difficult to establish with certainty in each individual case. Anyhow, vicarius excretion of contrast media occurs more frequently than previously thought, and it can occur not only with abnormal renal function but with normal function also.
Acute Kidney Injury ; Contrast Media ; Creatinine ; Gallbladder* ; Humans ; Renal Artery ; Ureter

Purpose: Although postural control assessment in patients with chronic ankle instability (CAI) has been thoroughly examined in the literature, few researchers have studied balance strategy in lateral ankle sprain (LAS) copers, who recover from LAS injury with no symptom progression. The purpose of this study was to investigate the difference in center of pressure (COP) variables during static and dynamic posture control among LAS copers, patients with CAI, and ankle healthy controls. Methods: This case-control study recruited 20 patients with CAI, 20 LAS copers, and 20 controls. All participants filled out Ankle Instability Instrument and Foot and Ankle Ability Measure questionnaire and performed single-leg static postural control and Star Excursion Balance Test (SEBT). Results: LAS copers showed less mediolateral COP range as compared to patients with CAI (p=0.001) and control (p=0.001) during static postural control. Furthermore, LAS copers have less anteroposterior COP standard deviation (SD) (p=0.034), range (p=0.009), velocity (p=0.013) than patients with CAI. Relative to patients with CAI, LAS copers had small mediolateral COP SD (p=0.022) and range (p=0.018) during the posteromedial direction of the SEBT.However, there was no significant difference in both mediolateral and anteroposterior COP variables during anterior and posterolateral directions of the SEBT (p≥ 0.05). Conclusion Based on these observed results, the authors conclude that greater postural control in LAS copers is one of the movement strategies to prevent recurrent LAS as a defense mechanism.

Purpose: This study aimed to compare a dynamic neuromuscular training program with a static neuromuscular training program for taekwondo players. Methods: This study design was a randomized control trial. Three high school taekwondo teams (taekwondo neuromuscular training [TNT] group, 22; Get Set group, 17; and control group, 24) participated in the study. Get Set group performed a program focused on the static movement, and TNT group performed a program which was modified Get Set to dynamic movement. Control group maintained the existing taekwondo training without any intervention. The intervention group performed 15-minute training three times a week for 6 weeks. Dynamic Postural Stability Index (DPSI) and time-to-boundary test (TTB) tests were performed before and after 6 weeks of training. Results: As a result of DPSI, an interaction effect was observed only in the anterior/posterior stability index of the dominant leg of the TNT and Get Set groups (p＜0.05). However, there was no difference between the TNT and the Get Set groups.As a result of TTB analysis, no statistical effect was observed in all variables of the dominant and non-dominant legs. Conclusion As a result of conducting 6-week dynamic and static neuromuscular training for taekwondo athletes, the effect of training was found in both the intervention group. However, differences in training effects between groups could not be proved. Therefore, it is necessary to clearly confirm the difference between the two training through long-term follow-up studies.

Succinylcholine (1.5mg/kg) without pretreatment, or succinylcholine (1.5mg/kg) with pretreatment by vecuronium (0.015 mg/kg, 0.045 mg/kg, 0.15 mg/kg) or d-tubocurarine (0.1 mg/kg, 0. 3 mg/ kg, 1mg/kg) was given to cats of the same genus (body weight 2.5-3.5kg) under subcutaneous urethane anesthesia to determine the effect of the intracrainal pressure increase in each method. The results are summarized as follows: 1) The intracranial pressure was significantly increased (0.005< p< 0.01)with the administration of succinylcholine(1.5mg/kg). 2)The intracranial pressure was not increased with the administration of vecuronium. 3)As the dosage of d-tubocuraine administration increased, the intracranial pressure was increased. 4)The increase of the intracranial pressure by succinylcholine was depressed dose-dependently by vecuronium pretreament. 5)The increase of the intracranial pressure by succinylcholine was depressed by d-tubocurarine(0.3mg/kg)pretreatment.
Anesthesia ; Animals ; Cats* ; Intracranial Pressure* ; Succinylcholine* ; Tubocurarine ; Urethane ; Vecuronium Bromide

No abstract available.
Male ; Penis* ; Xanthogranuloma, Juvenile*

The aim of this study was to compare with the effects of baclofen using an animal model of neuropathic pain. The sciatic nerve of rats was ligated unilaterally about dorsal half-portion in the tight according to the method of Seltzer and his colleague. After surgical operation, the rats showed painful symptoms of the ipsilateral hind paw, suggesting the possibility of spontaneous pain. And then, the paw withdrawal latency to the local heating on the paw through the glass plate and the frequency of paw withdrawal response to innocuous mechanical stimulation with modified von Frey filaments were determined to compare with the effects of pre-and post-medication of baclofen, respectively, at postoperative 3, 7, and 10 days. The results obtained were as follows: 1) The thermal hyperalgesia and mechanical allodynia produced by partially tight ligation of sciatic nerve appeared continously postoperative 3 days later. 2) In the hyperesthetic rats, the thermal hyperalgesia was inhibited from the 3rd posroperative day with orally administered baclofen 0.2mg and 1.0mg. 3) In the hyperesthetic rats, the mechanical allodynia was inhibited with baclofen 0.2mg, but not with baclofen 1.0mg, These results suggest that baclofen have more specific effects on thermal hyperalgesia than mechanical allodynia.
Animals* ; Baclofen* ; Glass ; Heating ; Hot Temperature ; Hyperalgesia ; Ligation ; Models, Animal* ; Neuralgia* ; Rats ; Sciatic Nerve

Adrenal myelolipoma is a rare benign, non-functioning tumor that is frequently discovered incidentally. We report here on a case of a 47-year-old woman with an incidentally found adrenal tumor. She was slightly obese and had been diagnosed with diabetes. Her blood sugar level was well-controlled with oral hypoglycemic agents. All the laboratory test results were within normal limits. The abdomen CT scan revealed a well-demarcated homogenous solid mass that was 9cm in diameter, and it consisted of fat tissues. The differential diagnosis for malignant tumors was necessary, so we performed complete surgical excision. The patient recovered well without any major complications. If the diagnosis of adrenal myelolipoma is definite, then regular follow-up of this type of patient is sufficient. However, as the differential diagnosis with malignant tumors is rather difficult and as spontaneous hemorrhage can persist in the giant myelolipomas that are greater than 10cm in diameter, performing complete surgical excision is inevitable.
Abdomen ; Adrenal Gland Neoplasms ; Blood Glucose ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Hemorrhage ; Humans ; Hypoglycemic Agents ; Middle Aged ; Myelolipoma

The authors experience 3 cases of angiographically occult vascular malformation(AVOM) of the brain during the last 3 months in 1990. All cases were diagnosis of either operative or pathological finding and were associated with intracerebral hemorrhage. The authors recommend that surgery should be considered even to those angiographically negative intracerebral hemorrhage cases, once clinical features are highly suggestive of AOVM. Surgery can be an effective and define therapy for these entities, which are prone to cause recurrent hemorrhage and persistent neural deficits.
Brain* ; Cerebral Hemorrhage ; Diagnosis ; Hemorrhage ; Magnetic Resonance Imaging ; Vascular Malformations*