Association between Insufficient Physical Activity and Hearing Loss in Korean Adults

Background@#Insufficient physical activity is a major risk factor for cardiovascular disease, and some studies report relationship between physical activityand hearing. We aimed to analyze association between hearing loss and physical activity level in Korean adults. @*Methods@#We used data from the 6th Korea National Health and Nutrition Examination Survey. Insufficient physical activity was defined as a combinedphysical activity of less than 150 minutes per week.. Hearing loss was identified when the audible threshold decreased more than 40 dB. Weperformed multiple logistic regression analysis of major covariates and stratified the participants by age (≥60 versus <60). @*Results@#We analyzed 3,237 participants for whom no values were missing. In the final multivariate logistic analysis, the odds ratio of hearing loss was1.227 (95% confidence interval [CI], 1.008–1.494) in the all frequency group and 1.361 (95% CI, 1.073–1.727) in the low frequency group. The resultfor the high frequency group was not statistically significant. In the group aged ≥60 years, the odds ratio of hearing loss in the all, low, and highfrequency groups were 1.277 (95% CI, 1.011–1.613), 1.405 (95% CI, 1.074–1.839), and 1.298 (95% CI, 1.013–1.662), respectively. @*Conclusion@#In this study, insufficient physical activity was associated with hearing loss in Korean adults. This result was more significant in the groupaged ≥60 years. Further studies should aim to validate these results and determine the causal relationship between physical inactivity and hearingloss.

Core Decompression and Impaction Bone Graft in Avascular Necrosis of the Femoral Head / 대한정형외과학회잡지

PURPOSE: To evaluate the effectiveness of core decompression with impaction bone graft in regard to the stage of the disease. MATERIALS AND METHODS: Forty-two cases in 32 patients were classified using ARCO (Association Research Circulation Osseous, 1992) classification and twenty-five cases were compared with postoperative follow-up MRI evaluation. There were 26 male and 6 female patients. Ten patients among 32 were bilatellally involved. RESULTS: There were 9 hips of stage 1 (A,O; B,1; C,8), 29 hips of stage 2 (A,1; B,6; C,22) and 4 hips of stage 3 (only C). Radiological progression was seen in 21 of 42 hips (50%); 22% of stage 1 (2/9), 59% of stage 2 (16/29) and 75% of stage 3 (3/4). Clinical failure with total hip arthroplasty conversion was seen in 11 of 42 hips (26%); 28% of stage 2 (8/29) and 75% of 3 (3/4). Forty-three percents of lateral lesions (11/26 cases) and all cases with femoral head involvement more than 30% showed clinical failure and radiologic progression. CONCLUSIONS: When the outcome of core decompression with impaction bone graft was evaluated according to ARCO classification, the progression of the stage or conversion to total hip arthroplasty was more common in the larger lesion and lateral location of necrosis. So, we could predict that core decompression with impaction bone graft was ineffective in preventing the progression of disease in the case of large extent and/or lateral location of necrosis.

Clinical Analysis of Unstable Thoracolumbar Fracture and Fracture-dislocation Using Transpedicular Screws and Harrington distration rod / 대한정형외과학회잡지

Transpedicular Screw fixation and Harrington distraction rod are effective means of managing unstable thoracolumbar fracture and fracture dislocation. The authors analysed the 52patients who were treated with above 2methods from March 1986 to February 1993. The results were as follows: 1. Most of patients were in 5th decade compare to younger group and most common cause of injury was fall down, but traffic accident is increasing. 2. The most commonly involved sites were T12and L1 vertebrae and most common type of injury is bursting fracture. 3. Postoperative anterior and posterior column of vertebrae body correction rate were 35.0%/34.4% in ISF group and 29.3%/27.9% in Harrington group. Postoperative correction loss rate were 0.13/0.04 in ISF group and 0.06/0.04 in Harrington group. 4. Postoperative correction of kyphosis angle were average 18 in ISF goup and average 15° in Harrington group. Loss of correction angle was average 23° in ISF group and average 4.4° in Harrington group. 5. Range of spinal fixation was average 3.1 segments in ISF group and average 6.2 segments in Harrington group. 6. There was no significant difference in neurologic recovery between ISF group and Harrington group. The patients who had been recovered neurologically more than 1 grade were 28.6% in Harrington group and 29.2% in ISF group. 7. ISF has some benefit in spnal vertebral body height correction and in maintenance of correction compare to Harrington group. Nevertheless disadvantages of ISF group such as long operative time and possibility of cord compression by pedicular screw, ISF has advantages of almost anatomical reduction and the least spinal fusion.

Meniscal cysts of Knee Joint: Report of 2 Cases / 대한정형외과학회잡지

A meniscal cyst is not common disease of knee joint. Many cases have been reported but its cause and origin are still pooly understood. We experienced two cases of the cysts on the lateral meniscus. They were treated by arthroscopic partial menisectomy and extraarticular excision of the cyst. The good results were obtained.

Computed tomographic findings of intracranial tuberculoma

Intracranial tuberculomas have been reported occasionally, especially in Asia, though much decreased in recentyears. Those lesions can be diagnosed more easily and acurately using CT than conventional method, including angiography. Authors analysed CT findings of 21 cases, confirmed as tuberculoma, at Hanyang University Hospital from May 1979 to June 1983. The resuslts were as follows; 1. Of all 21 cases, multiple lesions were seen in 14 cases (67%) and single in 7(33%). 2. Of all 21 cases, lesions located only at supratentorial were in 19 cases(90%) and remained 2(10%) had lesions at both supra and infratentorial area. And temporal and parietal lobes were common location (65%) of all lesions. 3. In precontrast scan, density of tuberculoma showed largely isodense (68%)and others were slight high (29%) and low(3%). 4. All lesions were enhanced showed as homogeneous nodular (68%),ring-shaped(29%) and target shaped(3%). 5. All rings were continuous and thickness was largely uniform(67%), anddensity of center of the ring was mainly low(67%). 6. Edema was seen in 58% of all lesions: comparing with thesize of tuberculoma, edema size was smaller in 50%, lager in 33% and almost the same in 17%.

Intracranial Lipoma

Intracranial lipoma is a rare condition, though lipoma in other sites can be found throughout the body. Many authors have reported intracranial lipoma since Rokitansky and Soman who described first in autopsy and living patient respectively. Intracranial lipoma can be diagnosed simply be simple skull and computed tomography. The authors experienced three cases of intracranial lipoma diagnosed by simple skull, tomography, cerebral angiography and computed tomography, and reported with a brief review of the literature.

Computed tomographic findings of acute carbon monoxide poisoning

Carbon monoxide (CO) is a kind of freq uent toxic gas around our living lives, for common use of briquet as fuel, and its pathologic effect has been known due to mainly hypoxia and direct cytotoxicity in some part to almost all organs, especially to the brain and heart. Some authors have reported pathologic and anatomic changes of the acute of posioning, although in a few cases, that bilaterally symmetrical lesions of the globus pallidus or cerebral white matter regarded as typical. After using computed tomography (CT), those findings have been discovered more easily and acurately. Authors analysed CT find ings of 32 cases, who had a history of acute CO posioning and performed CT at Hanyang University Hospital from May 1979 to June 1983. The results were as follows: 1. Of all 32 cases with CT scan, low density lesions were demonstrated in 28 cases (88%) and others were hemorrhagic and calcified in 2(6%), respectively. 2. AII lesions were seen as bilaterally symmetrical, exce pt 2 cases of hemorrhage and 1 of low density . 3. Of all 28 cases of the low densities, 15 cases(53.6%) were located in the globus pallidus, 10(35.7%) in the cerebral white matter and 3( 1 0.7%) in both of them. 4. Of all 13 cases of the low density lesions in the cerebral wh ite matter, common locations were in the frontal and parietal lobes (65.6%), and more in frontal (40.6%). 5. Of all 13 cases of low density lesions in the cerebral white matter, cases of involving all of the lobes were found in only 4. 6. All of 2 cases of the cal c ified lesions were seen at both sides of the globus pallidus, symmetrically. 7. All of 2 cases of the hemorrhage were seen at thalamus, ventricles and head of caudate nucleus, and these locations were different from those of the low densities or calcifications.