No abstract available.
Humerus*

Ever since the unrelenting efforts of Yasuda to Piezoelectricity, its been one of the hot areas in orthopaedic fields to file up experimental and clinical data concerning treatment of nonunion, delayed union and pseudarthrosis. Clinical use of this theory is the result of a systemic thirty-year investigation of bioelectrical phenomina in the skeletal system and of their role in regulating cellular elements. Since Friedenberys clinical application of Semi-invasive direct current stimulation to nonunion of medial malleolus of tibia, Brighton and Bassett made progress in this field with high success rate. In 1985, Non-invasive capacitive coupled electrical field was developed and used clinically by Brighton. We also developed a model of capacitive coupled electrical field system and made clinical application to nonunion of tibia with successful result.
Electric Stimulation ; Pseudarthrosis ; Tibia ; Tibial Fractures

No abstract available.
Renal Artery* ; Ureter* ; Veins*

OBJECTIVE: The operative indications on cerebellar hemorrhage have been controversial especially when the patient condition is grave. Therefore we investigated whether it can be justifiable if we perform the surgery in poor clinical grade. METHODS: Clinical records and computerized tomography(CT) films of the 89 patients, who were undergone hospital treatment due to spontaneous cerebellar hemorrhage between May 1997 and May 2004, were retrospectively researched. RESULTS: The study population consisted of 36 males and 53 female patients. The mean age was 65years (range 23~89). As a result of treatment, the patients, whose Glasgow coma scale(GCS) score were higher, showed better outcomes (p=0.001). 13 patients (14.6%) were below 5 in GCS score and 10 patients of these were operated. Among 10 patients, 4 patients (40%) showed good outcome and 5 patients (50%) had been dead. 3 patients (60%) of these dead patients had the findings of intraventricular hemorrhage, fourth ventricular obliteration and hydrocephalus in CT scan. CONCLUSION: This study suggests that operation may be justifiable in clinically poor grade patient with spontaneous intra cerebellar hemorrhage.
Coma ; Female ; Glasgow Coma Scale ; Glasgow Outcome Scale ; Hemorrhage* ; Humans ; Hydrocephalus ; Male ; Retrospective Studies ; Tomography, X-Ray Computed

No abstract available.
Neoplasm Metastasis*

Actinomycosis is a chronic suppurative and granulomatous disease caused by Actinomyces species and characterized by sulfur granule formation. Depending on the site of primary infection, it is generally classified as cervicofacial, thoracic and abdominal type. Abdominal actinomycosis is often difficult to diagnose before operation because of low frequency and no characteristic clinical features of the disease. As it progresses chronically, it can be misdiagnosed such as cancer, inflammatory bowel disease or other abscess. The diagnosis is usually based on histologic demonstration of sulfur granules in pus or surgically resected specimen. In vast majority of cases, treatment has consisted of long-term antibiotic therapy coupled with surgical resection. We experienced a case of colonic actinomycosis initially diagnosed as Dieulafoy's ulcer and confirmed by colonoscopic biopsy. Treatment with intravenous penicillin for 4 weeks was successful independently, and we report this case with a brief review of literatures.
Abscess ; Actinomyces ; Actinomycosis* ; Biopsy ; Colon ; Colonoscopy ; Diagnosis ; Inflammatory Bowel Diseases ; Penicillins ; Sulfur ; Suppuration ; Ulcer*

Human tails or caudal cutaneous appendages are rare congenital anomalies with lesions usually arising from the midline of the lumbosacrococcygeal area. There have been only around 70 cases reported in literature. A 4-month-old male infant born as the 1st child of a dizygotic twin was presented with a penis-shaped mass of 4-cm in the coccygeal area. The mass was entirely covered by skin without any skin defect and was connected to the midline skin of the posterior coccygeal area by a stalk. Magnetic resonance images showed fat density of the mass without any demonstrable communication with the spinal canal nor any underlying central nervous system anomalies. The patient underwent a simple surgical excision of the mass without residual effects and complications. Histopathologic examination of the mass revealed lobules of mature adipose tissue, fibromuscular soft tissue, small vessels and nerves with normal hair follicles on the skin.
Adipose Tissue ; Central Nervous System ; Child ; Hair Follicle ; Humans ; Infant ; Magnetic Resonance Spectroscopy ; Male ; Skin ; Spinal Canal ; Twins, Dizygotic

Intracranial dermoid cyst is a rare congenital disease originating in the embryo. Intracranial dermoid cysts are usually detected before five years of age; however, asymptomatic cysts have been discovered after the third decade of life through various complications. Sometimes, there are neurologic symptoms caused by a cystic mass effect and if there is a dermoid sinus, purulent infections can occur. Early diagnosis is important and as such, CT or MR imaging for recognition of the location, size, and characteristics of the cysts are recommended before surgical resection. Extradural dermoid cysts with an intact occipital dermoid sinus are a rare event. We report a case of intracranial dermoid cyst associated with scalp abscess. In this case, a three-year-old boy was presented with scalp abscess and we performed MR imaging, which revealed a cystic region. The prognosis after resection operation was good without any complication.
Abscess ; Dermoid Cyst ; Early Diagnosis ; Embryonic Structures ; Neurologic Manifestations ; Prognosis ; Scalp ; Spina Bifida Occulta

The dorsal root entry zone(DREZ) lesions making by focal destruction of the substantia gelatinosa controls intractable pain, and the DREZ-otomy by the selective destroying mainly the laterally located nociceptive and centrally located myotactic afferent fibers within the posterior root relieves the spasticity of the limbs. The authors analysed the results of 12 patients, treated by the DREZ lesions making for intractable pain, and 6 patients, treated by the DREZ-otomy for intractable spasticity of lower extremities, who were admitted to department of neurosurgery of Soonchunhyung University from 1983 to 1993. The obtained results were as follows. 1) Among the 12 patients suffered from intractable pain, three were brachial plexus avulsion, three were spinal cord injury, two were causalgia, and the others were paraneoplastic syndrome, metastatic carcinoma, postoperative spinal cord tumor, and atypical facial pain respectively. There were six patients intractable spasticity of that major cause was diffuse axonal injury(67%), and of that major posture was decorticate rigidity(83%). 2) The rate of immediate relief of intractable pain and spasticity was 82% in each after DREZ lesions making or DREZ-otomy. 3) The result of pain relief by the DREZ lesions making was excellent(100%) in brachial plexus avulsion, and poor(almost no relief) in paraplegic pain of spinal cord injury. 4) After DREZ-otomy on bilateral conus medullaris sparing S(2-4) segment, the degree of spasticity of lower extremitries reduced gradually to mean Ashworth scale 2.1 from mean 5. 5) Five of six patients of the bedridden state due to harmful spasticity was able to do comfortably wheel chair ambulation immediately after operation.
Axons ; Brachial Plexus ; Causalgia ; Conus Snail ; Extremities ; Facial Pain ; Humans ; Lower Extremity ; Muscle Spasticity* ; Neurosurgery ; Pain, Intractable* ; Paraneoplastic Syndromes ; Posture ; Spinal Cord Injuries ; Spinal Cord Neoplasms ; Spinal Nerve Roots ; Substantia Gelatinosa ; Walking ; Wheelchairs

To identify the corresponding cord segment for each root at the level of conus medullaris, a dissecting microscopic study was carried out on the spinal cord of 14 adult cadavers. We measured following contents:1) the longitudinal extent of the medullary segment of origin of each root:2) the distance from the lowest rootlet of the conus to the highest portion of the medullary segment of each root:3) the distance from the conus tip to the lowest portion of the medullary segment of each root:4) the morphological features of root-spinal cord juncton, intrathecal anastomoses, and others. We measured on the basis of the last rootlet ecause of no clear distinction between the conus and filum terminale. Our values showed considerable variation from one case to another. The average length of the whole lumbar and sacral segment was 50 mm and 30 mm, respectively. The S-1 root was the largest. Intrathecal intersegmental anastomoses were found in all cases examined, and usually consisted of small caliber rootlets connecting the spinal roots of adjacent segments. We emphasize the importance of microsurgical structure of conus medullaris when performing an operation of dorsal root entry zone or myelotomy for the relief or spasticity or intractable pain of lower extremities.
Adult ; Cadaver ; Cauda Equina ; Conus Snail* ; Humans ; Lower Extremity ; Muscle Spasticity ; Pain, Intractable ; Spinal Cord ; Spinal Nerve Roots