We have analyzed 27 cases(38.8%) of scapho-lunate(SL) dissociation which were the most com- mon type of total 72 cases of post-traumatic wrist instabilities since 1985. As a result, SL dissociations associated with wrist fracture were 23 cases, more common than simple dynamic SL dissociation(4 cases). Early diagnosis and treatment influenced on their prognosis, and both wrist PA roentgenograms were useful for the confirmative diagnosis of SL dissociation. In 16 cases with early diagnosis, closed reduction, 2 or 3 K-wires fixation under C-arm image and short arm cast for 8 weeks were effective. But in 11 cases with neglected diagnosis and with wrist fractures showed poor results. Excessive wrist ligamentous reconstruction in chronic cases should be avoided because of osteoporosis and wrist stiffness. Conclusively, clinical wrist symptoms are more important than radiological changes in wrist insta- bilites. So if the symptoms are not so severe, we must consider the patient's age, occupation and their social activities etc. to decide the proper way of treatment.
Arm ; Diagnosis ; Early Diagnosis ; Ligaments ; Occupations ; Osteoporosis ; Prognosis ; Wrist

PURPOSE: To determine whether the compression technique is a valuable additional method for differentiating between benign and malignant breast masses. MATERIALS AND METHODS: The ultrasonographic findings of 95 benign and 53 malignant masses, all pathologically proven, were prospectively analyzed with regard to five diagnostic criteria: shape (regular/irregular), retrotumoral acoustic phenomena (posterior enhancement/posterior attenuation), internal echo pattern (homogeneous/inhomogeneous), compression effect on shape (distortion/no change), and compression effect on internal echo pattern (more homogeneous/no change). RESULTS: The number of cases of benign and malignant masses, respectively, was as follows: regular / irregular shape: 84/11, 9/44; posterior acoustic enhancement/posterior attenuation: 82/13, 16/37; homogeneous/inhomogeneous internal echo pattern: 78/17, 14/39; distortion/no change in shpae: 76/19, 5/48; and more homogeneous/ no change in internal echo pattern: 71/24, 3/50. For all diagnostic criteria for the differentiation of benign and malignant masses, the differences were statistically significant (p<.05). CONCLUSION: Ultrasonography is helpful for differentiating between benign and malignant breast masses. The compression technique is a valuable additional diagnostic method.
Acoustics ; Breast* ; Prospective Studies ; Ultrasonography*

No abstract available.
Cartilage ; Rabbits ; Temporomandibular Joint Disc ; Temporomandibular Joint ; Transplants

The Kuntscher nail has been used widely for the treatment of femoral shaft fracture with the advantage of early weight bearing and early joint movement. But it has some disadvantages that are harmful in bone-union by the wide intramedullary reaming, and rotation and bending of the device. Schneider devised four flanged nail to be able to eliminate the disadvantage of the Kiintscher nail. The author have experienced the 16 cases of Schneider nailing in the fractures of femoral shaft at the Department of Orthopaedic Surgery, Ewha Womans University Hospital from Feb., 1982 to Apr., 1984. The following results were obtained. 1. There were common in male (14 cases) and active ages (13 cases). 2. The most common cause was trauma with 14 cases and the other was pathological fracture. 3. Indications of Schneider nailing were wide than those of Kiintscher nailing. 4. Usual intervals between the injury and operation was one week. 5. Mean operating time was one hour and 25 minutes, and blood loss during the operation was 410cc. 6. After treatment, we usually permitted the exercises of quadriceps setting and non-weight bering walking within 1 week, partial-weight bearing walking within 4 weeks and full weight bearing walking within 4 months. 7. The results of 13 cases among 15 cases were better than good. 8. There were no complications such deformities as rotation, shortening and angulation because of specialized structure of Schneider nail. Also, Schneider nailing could prevent the nonunion and infection because there was need of reaming the medullary canal.
Congenital Abnormalities ; Exercise ; Female ; Fracture Fixation, Intramedullary ; Fractures, Spontaneous ; Humans ; Joints ; Male ; Walking ; Weight-Bearing

Since ossification of posterior longitudinal ligament in cervical spine (O.P.L.L.) was presented at first by Tsukimoto in 1960, many cases have been reported in Japan. But very few cases were reported outside of Japan, including Korea. It is yet unknown what mechanism is the cause and why it is prevalent among the Japanese. And so, there are various theories on the cause. With progression, this lesion cas cause cervical myelopathy and radiculopathy. The treatment of O.P.L.L. is divided into conservative and operative treatment, and the latter is composed of anterior fusion,anterior decompression and posterior decompression. We experienced 3 cases of O.P.L.L. of which two cases were treated by anterior fusion and one tred by anterior decompression with partial removel of ossification mass from March, 1985 to May, 1986. On the follow-up, results were excellent to good. We report our experience in treatment of O.P.L.L. and recommand to be concerned about the lesion.
Asian Continental Ancestry Group ; Decompression ; Follow-Up Studies ; Humans ; Japan ; Korea ; Longitudinal Ligaments ; Ossification of Posterior Longitudinal Ligament ; Radiculopathy ; Spinal Cord Diseases ; Spine

Fracture of the vertebral end plate in the lumbar and sacral spine has been reported as a rare lesion. Especially it is very rare that fractures are found at two levels simultaneously. To our knowledge, there has been only one reported case of this type of fracture in Korea3). We report a case of fractures of the vertebral end plates at two levels in adolescent patient.
Adolescent ; Humans ; Spine

Congenital vertical talus is dufficult to correct and tends to recur. Reduction of the deformed talon-avicular joint is rarely possible by conservative means alone and consequently surgical reduction is usually necessary. The technique of Kumar, Cowell and Ramsey(TAL, capsular release, open reduction of navicular, and K-wire fixation) was combined with or without tendon transfer using Tibialis anterior(Grice operation) in 11 feet of seven children(bilateral in four) under the age of four(2 girls and 5 boys), and followed them for average 41 months. Three of them were combined with cerebral palsy, syringomyelia, and multiple joint stiffness with camptodactyly. In preoperative radiograms, all of their tali are so distorted plantarward and medially as to be almost vertical. The talus was in an equinus position also but to a lesser degrees. The forefoot was dorsiflexed at the midtarsal joint and the navicular lay on the dorsal aspect of the talar head. Seven feet are corrected normally after operation, but four feet were recurred and soft tissue releasing techniques combined with extraarticular subtalar arthrodesis or triple arthrodesis were planned after their skeletal maturity.
Arthrodesis ; Cerebral Palsy ; Female ; Foot ; Head ; Humans ; Joint Capsule Release ; Joints ; Syringomyelia ; Talus ; Tendon Transfer

No abstract available.

OBJECTIVES: The multiple sleep latency test (MSLT) is commonly used as a valid objective measure of sleepiness. The procedure of MSLT is well standardized but the sleep onset criterion is somewhat variable. One epoch of stage 1 sleep is the most commonly used criterion, and the criterion of three epochs of stage 1 sleep is also used. The purpose of this study was to compare the two criteria used to determine sleep onset. METHODS: We retrospectively analyzed 60 consecutive MSLT that were performed according to a standaridized protocol. We scored each test using the two different criteria for sleep onset and then statistically analyed the results. RESULTS: Using the different criteria, 20 patients among 60 showed changes in mean sleep latency (33.3%). The extent of change ranged from 1.3% to 38.5% (mean 15.9%). Non-narcoleptic patients showed a significantly higher incidence of change than other sleep disorder patients. CONCLUSION: Changes in mean sleep latency occurred according to the different criteria of sleep onset. But the difference arising from different criteria was statistically not significant in patients with moderate to severe sleepiness. Considering that 1 epoch criterion for sleep onset is more sensitive in detecting clinically significant sleepiness, the authors suggest that the 1 epoch criterion is more reliable than the 3 epochs criterion.
Humans ; Incidence ; Retrospective Studies

OBJECTIVES: To investigate the factors associated with symptoms from job stress among Korean dental laboratory technicians. METHODS: We collected the data of 786 technicians for life-style, job stressor, social support, self-esteem, personality, and various dimension of stress symptoms included roomatization, obsessive-compulsive, interpersonal sensitivity, depression, anxiety, and hostility by self-administerd questionnaire. Global severity index of dental technician (GSID) was calculated by total sum of sub-dimension. RESULTS: We used 80 percentile as a cut-off point, and got the 81.5 % of sensitivity, 86.1 % of specificity by receiver operating characteristic curve. The odds ratios of various factors in high group of GSID compared with low group were 1,49(95 % Cl 1.00-2.00) for smoker, 1,53 (1.06-2.21) for unhealthy group, 6,69 (4.74-9.44) for work overload, 8.34(5.82-11.97) for work demand, 9.89 (6.76-74.94) for work process, 8.27 (5.80-11,79) for work environment, 5.82 (4.04-8.39) for interpersonal relationship, 8.34 (5.82-11.97) for occupational conflict, 5.70 (4.04-8.04) for labor remuneration, 7.58 (5.37-10.71) for role conflict, but 0.39 (0.27-0.57) for social support, 0.41 (0.29-0.60) for self-esteem. By multiple logistic regression, factors were significantly associated with GSID were age, working area, role overload, work demand, work procedure, physical environment, occupational conflict, role conflict, social support, personality traits. CONCLUSIONS: Factors associated with symptoms from stress were role overload, work demand, work procedure, occupational conflict, interpersonal relationship, labor remuneration and role conflict in Korean dental laboratory technicians. It is suggested that health promotion program to reduce job stress and to enforce social support and self-esteem should be developed.
Anxiety ; Dental Technicians ; Depression ; Health Promotion ; Hostility ; Humans ; Laboratories, Dental* ; Logistic Models ; Odds Ratio ; Questionnaires ; Remuneration ; ROC Curve ; Sensitivity and Specificity