PURPOSE: To evaluate the effectiveness and safety of postoperative radiotherapy for the treatment of keloid scars administered immediately after Cesarean section. MATERIALS AND METHODS: A total of 26 postpartum patients with confirmed keloids resulting from previous Cesarean sections received either 12 or 15 Gy radiotherapy. The radiotherapy was divided into three 6 MeV electron beam fractions administered during the postpartum period immediately following the final Cesarean section. To evaluate ovarian safety, designated doses of radiation were estimated at the calculated depth of the ovaries using a solid plate phantom and an ionization chamber with the same lead cutout as was used for the treatment of Cesarean section operative scars and a tissue equivalent bolus. RESULTS: In total, the control rate was 77% (20 patients), while six (23%) developed focally elevated keloids (ranging from 0.5 to 2 cm in length) in the middle of the primary abdominal scar. Five patients experienced mild hyperpigmentation. Nonetheless, most patients (96%) were satisfied with the treatment results. The estimated percentage of the applied radiation doses that reached the calculated depth of the ovaries ranged from 0.0033% to 0.0062%. CONCLUSION: When administered during the immediate postpartum period, postoperative electron beam radiotherapy for repeated Cesarean section scars is generally safe and produces good cosmetic results with minimal toxicity.
Cesarean Section ; Cicatrix ; Cosmetics ; Electrons ; Female ; Humans ; Hyperpigmentation ; Keloid ; Ovary ; Postpartum Period ; Pregnancy

No abstract available.
Hernia, Inguinal*

No abstract available.

No abstract available.
Surveys and Questionnaires*

Simple bone cyst was first described by Virchow over a century ago and has been the subject of numerous articles. Nevertheless considerable confusion still exists regarding its etiology. clinical behavior and optimal management. Eighteen cases of pathologically proven simple bone cyst were treated in the Department of Orthopedic Surgery, Seoul National University Hospital during the thirteen year period from June 1966 to May 1979, and following results were obtained. 1. Age distributions were between five and forty-three years (Average ; seventeen years), and 72.2% (thirteen cases) were during first two decades of life. 2. Male to female ratio was 2.6 to 1 3. The most frequently involved location was proximal humerus followed by proximal femur. 4. Pathologic fracture, pain, incidental roentgenography and swelling were the first clues of diagnosis in our series. 5. In twelve cases curettage and fresh autogenous iliac bone graft was performed and good results were obtained in all of them. Of five cases only curettage had been done, no case recurred, another case showed residual cystic area, and the rest healed without further event. In one case with huge cyst curettage, iliac and fibular bone graft and bone cementing was performed with satisfactory result. 6. Bone shortening was noticed in two cases of active bone cysts in proximal humerus 2cm and 3cm, respectively.
Age Distribution ; Bone Cysts ; Curettage ; Diagnosis ; Female ; Femur ; Fractures, Spontaneous ; Humans ; Humerus ; Male ; Orthopedics ; Radiography ; Seoul ; Transplants

The concept of surface replacement arthroplasty of the hip is to replace the diseased joint surface with artificial plastic and metal cup in the acetabular and femoral head respectively, and to restore the normal anatomy and gain biomechanical function. Ten cases of Wagner type's surface replacement arthroplasty performed in Department of Orthopedic Surgery, Seoul National University Hospital since July 1979 are reviewed, and their minimum follow up is two months. In terms of the Pain control and improvement of range of motion in the hip, surface replacement arthroplasty showed about the same result compared with conventional total hip. In our cases there was no one complicatian, even though it is too short to evaluate the result of this operation. Wagner recommends surface replacement arthroplasty to perform through anterior approach, but 2 cases of our ten patients that have relatively good range of motion of the hip could be operated on this surgery by anterolateral approach (oblique skin incision) without trochanteric osteotomy, because of high incedence of myositis ossification with anterior approach. It is our conclusion that surface replacement arthroplasty of the hip may be used as an interim procedure to gain time in young patient who needs conventional total hip replacement which reveals increasing complication with the lapse of time.
Acetabulum ; Arthroplasty, Replacement ; Arthroplasty, Replacement, Hip ; Femur ; Follow-Up Studies ; Head ; Hip ; Humans ; Joints ; Myositis ; Orthopedics ; Osteotomy ; Plastics ; Range of Motion, Articular ; Seoul ; Skin

Twelve neglected congenital dislocations of the hip in ten patients over the age of eight years were treated by open reduction and chiari osteotomy. Reduction was aided by preoperative traction only in two hips, by femoral shortening with preoperative traction in three and by femoral shortening only in seven. The average follow up period in our series is 3 years, ranging from 1 year and 2 moths to 4 years and 5 months. The overall results were good but one case of avascular necrcsis and one case of redislocation were seen. By our experience it is thought that all old and congenitally dislocated hip in the growing age can be reduced by femoral shortening with soft tissue release, and preoperative traction for its reduction is not undispensable. The most problem in the treatment of the old congenital dislocation of the hip is the postoperative partial ankylosis in the affected hip and this problem would be overcome by delicate operative technique and meticulous hemostasis.
Ankylosis ; Dislocations ; Follow-Up Studies ; Hemostasis ; Hip ; Humans ; Moths ; Osteotomy ; Traction

The experience of a replacement surgery of ankylosed elbow joint by the Shiers chrome-cobalt hinge prosthesis is introduced with a brief review of literatures.
Arthroplasty ; Elbow Joint ; Elbow ; Prostheses and Implants

Congenital pseudarthroses and non-unions have been recognized as some of the most challenging problems in orthopaedic surgery. with a standard surgical procedure, such as bone grafting, nailing, plating or a combination of these, it was frequently failed to unit. After repeated surgical failures, amputation has been the main course. With the advent of an electrical control of osteogenesis, however, this dismal outlook is brightening. The earliest report of the use of electrical energy to directly stimulate bone healing seems to be in 19th century, but it was not reliable. In this century, the electrical properties of bone were first described by Yasuda et al in 1953. After then, several investigators have shown that the application of small amounts of the electrical current to bone stimulates osteogenesis at the site of the cathode. Clinical trials using various froms in the treatment of delayed union, non-union, and congenital-pseudarthrosis began early in the 1970's. Constant direct current, pulsed current, and electromagnetically induced current have all been used clinically to heal bone defects with varying degrees of success. But, to-this date it is unknown what is the mechanism of stimulating bone healiag with electricity, and which from of electricity is most efficient in stimulating osteogenesis. We have experienced direct current stimulation to promote osteogenesis in 9 cases of non-union and 4 cases of congenital pseudarthses of the tibia from august, 1978 to december, 1980. Of 9 non-unions, 7 (77.8%) achieved solid bony union. We had obtained bony union in 4cases of non-union only with the electrical stimulation. In 4 cases of congenital pseudarthses of the tibia, all cases achieved solid bony union with the electrical stimulation and bone graft, but in 3 cases, refractures were occurred. At this moment, our conclusions from this study are as followa. I. Direct current stimulation is one of the reliable methods inducing ostengenesis. 2. Regular follows-up and determination of the stimulator integrity are essential steps in the electrical stimulation. 3. Combined treatment with the electrical stimulation and bone graft have markedly improved the success rate. 4. In direct current stimulation of congenital pseudarthsis, the mechanically sound bony alignment, massive bone graft and protection using long leg brace seem to be mandatory procedures.
Amputation ; Bone Transplantation ; Braces ; Electric Stimulation ; Electricity ; Electrodes ; Humans ; Leg ; Magnets ; Osteogenesis ; Pseudarthrosis ; Research Personnel ; Tibia ; Transplants

The purpose of this study was to analyze the physical fitness and performance level depending on play style in female table tennis players. Thirty-one female players participated in this study. The measurement factors for physical fitness were body composition, cardiopulmonary function and fitness, balance, power, flexibility, agility, isotonic and isokinetic strength, muscle endurance and anaerobic. Kruskal-Wallis test, Mann-Whitney test, and Spearman correlation were used to analyze the data. The results were as follows; in cardiopulmonary function and fitness, FEV1/FVC was significantly higher in defensive style than drive style. Also, Harvard step test was significantly higher in drive style than attack style. In agility, cross run was significantly slower in attack style than the other styles. In isokinetic strength, left flexion strength of knee was significantly higher in driver style than defensive style. Also, in correlations, performance level had association with Harvard step test in defensive and attack style, 20 m run in attack style, cross run in defensive and drive style, push-ups in drive style. As different physical fitness factors were correlated on performance and scientific training program should be applied according to the play styles.
Body Composition ; Education ; Exercise Test ; Female* ; Humans ; Knee ; Muscle Strength ; Physical Fitness* ; Pliability ; Racquet Sports ; Sports ; Tennis*