No abstract available.
Cell Adhesion* ; Ischemia* ; Microscopy, Video* ; Reperfusion*

No abstract available.
Splenectomy*

Calcaneus is the largest tarsal bone and serves weight bearing of the body. The calcaneus has a pattern of cancellous bone enclosed with a very thin cortical shell. It is difficult to reduce the bony fragments accurately when there are comminution and displacement on the calcaneal fractures. Retrospective study was carried out of 18 patients(21 feet) of calcaneus fractures after axial fixation in Soonchunhyang University Hospital from July, 1982 to July, 1988. Minimum follow up period was 8 months(average 2 years 6 months). The clinical analysis of them are reported with a review of the literature and the results are follows:l. According to the Rowe's unit system, the results of treatment were excellent or good in 9 cases of 13 tongue types and 5 cases of 8 joint depression types. 2. The results were satisfactory in the calcaneal fractures of well reestablished Bohler angle to 21-30 degrees. 3. The results were excellent or good in 5 cases operated within post-trauma 1 week and in 9 cases operated from 1 week to 2 weeks. 4. The results were poor in the 2 joint depression type with severe comminution. And subtalar joint fusion was performed on the previous 2 cases. Then pain on the lateral malleolar area was subsided.
Calcaneus ; Depression ; Follow-Up Studies ; Joints ; Retrospective Studies ; Subtalar Joint ; Tarsal Bones ; Tongue ; Weight-Bearing

Malignant neuroepithelioma is a rare neoplasm arising within the peripheral nervous system and usually occurs in the lower extremities. It may involve patients in any age group and have no gender predisposition. In adolescents and adults the tumor must be distinguished from other malignant round-cell tumors. The poor prognosis and the need for aggressive, combined surgical and chemotherapeutic modalities in treating this tumor necessitate a prompt and accurate diagnosis. Authors have experienced a case of malignant neuroepithelioma developed in left sciatic nerve. The diagnosis was confirmed by CT scan, M.R.I., light and electron microscopic findings.
Adolescent ; Adult ; Diagnosis ; Humans ; Lower Extremity ; Neuroectodermal Tumors, Primitive, Peripheral ; Peripheral Nervous System ; Prognosis ; Sciatic Nerve ; Tomography, X-Ray Computed

The management of supracondylar fractures of the femur remains controversial. Most studies over the past twenty years have attempted to compare the results of non-surgical with those of surgical methods. Until a few years ago, conservative treatment was considered superior to internal fixation of supracondylar fractures of the femur. However, the development of new fixation devices and techniques have, according to several investigations, improved the results of the treatment of these fractures. The following clinical results were shown by analysis of 96 cases of supracondylar fractures of the femur treated in the Department of Orthopedic Surgery, Yonsei University, College of Medicine during the past 10 years from Jan. 1971 to Dec. 1980. 1. The prevalent age distribution was between 21 and 50 years of age (79.1%), and the ratio between males and females was 3.4:1. The most common cause of injury was car accidents (51.0%). 2. A classification of supracondylar fractures was unicondylar, simple supracondylar and intercondylar. Intercondylar which was subdivided into Type I, II-A, II-B, III according to Neer's classification. 3. Fifty nine patients (61.4%) were associated with injuries of other parts and the most frequent associated fracture was tibial fracture and the most common associated soft tissue injury was cerebral concussion or contusion. 4. The methods of treatment: conservative management by using skeletal traction for 34 cases, surgical treatment by open reduction and internal fixation for 58 cases and A-K amputation for 4 cases due to populiteral artery injury. 5. Fifty nine cases were suitable for result analysis. The satisfactory result of surgical treatment was 63.4% and conservative treatment was 50.0% respectively. The factors affecting the final results were Type of fracture, severity of injury, and rigid internal fixation. 6. The main complications of the supracondylar fractures of the femur were delayed union (10.2%), infection (10.2%), and traumatic arthritis (13.3%). 7. Finally, the results of treatment depend largely on anatomical reduction, rigid fixation, early joint motion.
Age Distribution ; Amputation ; Arteries ; Arthritis ; Brain Concussion ; Classification ; Clinical Study ; Contusions ; Female ; Femur ; Humans ; Joints ; Male ; Orthopedics ; Soft Tissue Injuries ; Tibial Fractures ; Traction

No abstract available.
Diabetic Neuropathies*

No abstract available.
Vaccination*

Achilles tendon is the most powerful and the biggest tendon of the body and its rupture is frequently sports-related. Many authors reported the effects of mobilization, electricity, ultrasound and various drugs as factors influencing the injured tendon. We studied the effects of early passive mobilization after firm suture using plantaris tendon as tension suture material and reinforcing membrane on the repair of a ruptured Achilles tendon. From March 1992 to December 1995, twenty-two operations on the Achilles tendon were carried out in our hospital. 1. Fourteen patients were male and eight patients were female. The mean patient age was 38 years, ranging from 13 to 68 years. Average follow-up periods was 2 years and 7 months, ranging from 12 months to 3 years and 8 months. 2. The rupture site was 4.7cm proximal to the tendon insertion into the calcaneus on average. 3. We performed the operations with end to end suture technique. After approximation of the ruptured ends of the tendon with a No. 5 Ethibond tension suture using a modified Kessler stitch, placed plantaris tendon in a fascial needle and pass it circumferentially and distal plantaris tendon is fanned out and tacked over the repair. 4. Postoperative treatment was done as following protocol Short leg cast was done with equinus position for initial 3 weeks, and then cast was removed, hydrotherapy and passive exercises was employed. About 6 weeks after operation when the foot can be brought to right angle, a reverse 90degrees ankle stop short leg brace was applied for additional 6 weeks and partial weight bearing was aUowed. 5. Follow-up results were classified according to the Arner-Lindholm scale. We had 16 excellent results and 6 satisfactory results. After rigid suture it may be possible to introduce a regimen of progressive isometric stimulation and protected loading and streching combined with removable orthosis. Such early exercises are likely to improve the rate of rehabilitation over plaster immobilization.
Achilles Tendon* ; Ankle ; Braces ; Calcaneus ; Electricity ; Exercise ; Female ; Follow-Up Studies ; Foot ; Humans ; Hydrotherapy ; Immobilization ; Leg ; Male ; Membranes ; Needles ; Orthotic Devices ; Rehabilitation ; Rupture* ; Suture Techniques ; Sutures ; Tendons ; Ultrasonography ; Weight-Bearing

Vertebral pedicle screws have been widely used for secure posterior spinal fixation. When postoperative CT scan films were made, the blurring of pedicle screws were observed and we could not figure nut the exact diameter of screw and canal encroachment. There is no information in the difference hetween actual diameter and measured diameter of pedcile screws in CT yet. In this study, we try to find out partial voiume averaging artifact of pedicle screws made of stainless steel and titanium. Partial volume averaging artifact occurs when the shape of an object changes within the thickness of the CT slice or when a relatively small object is only partially included within the slice. Four pig cadaveric spinal column including 6 vertebrae each were prepared and CT scans were performed after insertion of C-D screws(stainless steel) to the left and TSRH screws(titanium) to the right pedicle. Another CT scans were performed after insertion of C-D screws to the right and TSRH screws to the left pedicle. The third CT scans were made after removal of all the pedicle screws. Actual C-D screw diameter was 6mm and CT scanned diameter was 8. I 6+/-0.66mm. Actual TSRH diameter was 6.5 mm and CT scanned diameter was 6.59+/-0.34mm. In conclusion, stainless steel has more partial volume averaging artifact than titanium. Safety margin of pedicle screw made of stainless steel is about 2mm and that of titanium is about 1 mm.
Artifacts ; Cadaver ; Nuts ; Spine ; Stainless Steel* ; Titanium* ; Tomography, X-Ray Computed*

No abstract available.
Pregnancy*