No abstract available.
Diagnosis*

The elbow is the most frequent area of complaint in children and adolescent baseball players. The physical stresses associated with repetitive throwing create extra-ordinary forces, which may affect the normal osteochondral and soft tissue developmental process and are the important factors causing the decrease of competitive power and shortening of life as a baseball player in adolescents. We surveyed the 114 baseball players of middle & high school in Taegu in order to evaluate the prevalance of symptoms and radiologic findings of the elbow and correlation of these findings to career & position of the baseball game. The results were as follows. 1. Of 114 players, 83 were non-pitchers and 31 were pitchers. The mean career was 3.8 years (7 months to 6 years). 2. The 77 players (67.7%) had the pain on their elbow during or after daily exercise. Other clinical symptoms were locking (30.7%), limitation of motion (18.4%), swelling (16.6%) and clicks on motion (10.5%). 3. On the radiogram of the elbow, hypertrophy or separation of medial epicondyle were seen in 34% of players, loose bodies in 17%, hypertrophy of the humerus in 12% and cystic change of the capitellum in 11%. 4. The mean career of symptomatic players was 4.4 years but non-symptomatics was 2.7 years. The mean career of players who had abnormal radiologic findings was 5.1 years but 3.1 years in players who had no abnormal radiologic fingings. 5. Symptoms and pathologic changes were more common in the elbow of pitcher' s group due to throwing frequency & pitching style. 6. Among the 77 players who had any kinds of problem of the elbow, 49 players of them had no experience of visiting hospital. 7. To prevent these injuries of the elbow, the following recommendations were made. First, restrict the number of innings pitched per game. Second, avoid throwing the curve ball in this age group. Third, ensue an adequate warm up period before exercise or rest after games. Fourth, inform parents and coaches of possible harmful nature of excessive throwing.
Adolescent* ; Baseball* ; Child ; Daegu ; Elbow* ; Humans ; Humerus ; Hypertrophy ; Parents

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

We developed Extor pins for Extor external fixator, it made of stainless steel and applied it clinically to manage open fractures and chronic osteomyelitis from December, 1993 to January, 1995. The main aim of present study is to compare the mechanical strength and biocompatibillity between Extor pins and AO Schanz pins, and to determine the safety and possibility of clinical use. We performed the biomechanical test for bending, tension, and shearing of pin itself using universal testing machine (LR5OK) and pullout test in cadeveric cortical femur to determine the bone holding power. There was no significant difference between Extor and AO Schanz pin (p>0.05). Clinically, the incidence of pin site infection, pin lossening, radiological rarefaction, and pathological change were not different significantly (p>0.05). Although Extor pins are somewhat different from AO Shanz pins in material and design characteristics, we can find the safety and possibility of clinical use of Extor pins made in Korea.
External Fixators* ; Femur ; Fractures, Open ; Incidence ; Korea ; Osteomyelitis ; Stainless Steel

No abstract available.
Ligaments*

Followings are the results obtained from the observation on the microangiograms and Geon D11 Alatex molding casts in the rabbit, canine and Korean human Kidneys. 1. The findings of microangiograms in the rabbit and canine Kidneys are uniform interlobar arteries run toward lateral border of Kidney in radiating form without branching, divide the Kidney into similar sized segments and segmental distribution is evident. The arcuate arteries arising from the interlobar arteries run toward lateral border to form numerous interlobular arteries, make angle nearly horizontal with av. 152.8 degree in rabbit and with av. 151.6 degree in canine. In Korean human Kidney, it is difficult to confirm the interlobar arteries and arcuate arteries because of ununiform size and length of these. And the angle between arcuate arteries is sharp with av. 40.6 degree. 2. The findings of the molding casts in rabbit and canine Kidneys are that interlobar arteries running toward lateral border of Kidney with radiating form are evident, which are 6-9 branches from anterior division and 5-7 from posterior in rabbit and 7-9 from anterior and 5-7 from posterior in canine. The angle between arcuate arteries dividing from interlobar arteries with right angle is nearly horizontal with av. 162.3 degree in rabbit and with av. 159.8 degree in canine. The numerous interlobular arteries arise from arcuate artery with right angle. In Korean human Kidneys it is difficult to confirm interlobar arteries which are 2-4 branches originating from anterior because of ununiform size and length of these. And the angle between arcuate arteries in sharp degree with av. 43.7 degree. 3. The renal collecting system which has close relation to are pathway of interlobar arteries by molding casts shows that calyces are symmetrical, 2 rows and regular in rabbit and canine Kidneys while irregular in human. 4. Nephrotomy line, that is, junction of anterior and posterior division blood supply in the Kidney by molding casts is different between canine and human. Nephrotomy line in human is in posterior aspect of lateral border of Kidney almost 2/3 but there is no avascular area in the lateral borden of Kidney, the so called Brodels line as advocated by Brodel because interlobular arteries branching from arcuate arteries are interdigitated together as end arteries. 5. Gross anatomic differences of renal vasculature among rabbit, canine and human on the basis of microangiograms and molding casts suggest that rabbit and canine may not be suitable subjects for surgical experimentation.
Arteries* ; Fungi ; Humans* ; Kidney* ; Polyvinyl Chloride ; Renal Artery ; Running

The authors outline the method of orchiopexy and report the results of orchiopexy performed on 79 cases (113 testes) of cryptorchism. A. Method of orchiopexy 1) In inguinal oblique skin incision, while noting frequent keloid formation, no keloid formation was noted as the lower abdominal transverse incision. 2) It was easy to descend testes to the base of the scrotal sac by performing orchidofuniculolysis sufficiently. 3) Of the several methods of orchiopexy, dartos pouch method was most ideal. B. Operative results on the 79 cases (113 testes) of cryptorchism are as follows. 1) Of the 113 testes, there were noted sufficient descent to the scrotal base in 108 testes, and somewhat insufficient descent in 5 testes. 2) In the consideration that 5 case of unsufficient descent in the group of type IV which was not detectable on manual palpation, sufficient orchidofuniculolysis should be carried out preoperatively regarding difficulties in sufficient descent. C. While operation time of cryptorchism being 4-5 years old as a rule, 25% or so are performed at 1-5 years old in authors' cases. So more active instruction should be considered.
Cryptorchidism ; Keloid ; Male ; Orchiopexy* ; Palpation ; Skin ; Testis

Delayed cutaneous hypersensitivity test had been demonstrated to correlate inversely with stage of disease and predict prognosis of tumor. We evaluated the delayed cutaneous hypersensitivity(D.C.H.) with Multitest CMI between the tumor group and normal control group in Department of Urology, Kosin, Medical College Hospital during the period from October 1986 to August 1988. The result were as follows: 1. D.C.H. with Multitest CMI was compared between the normal control and tumor group: mean total score of positive antigens was markedly decreased in the tumor group(11.3mm for tumor, 15.9mm for control p<0.01) and average number of positive reaction was also decreased in the tumor group(2.6 for tumor, 4.2 for control p<0.01). 2. The percentages of energic response were 11.9% for tumor and 0% for control and the incidence of hypoenergy was also increased in the tumor group (34.2% for tumor, 9% for control). 3. The percentages of Warning score were 27.6% for tumor and 6.8% for control. 4. In comparison with each antigens, there were the strongest reaction and the highest reaction with tuberculin in both group (98.3% for control, 82.9% for tumor) while the weakest reaction with tetanus (16.3% for control, 3.9% for tumor). 5. In comparison of D.C.H. between male and female, low cell mediated immunity was observed in female for the average number of positive antigens in control(4.8 for male, 3.7 for female) and for the average store of in tumor (11.7 mm for male, 9.6 mm for female). 6. In D.C.H. between age groups in control, the youth (17-25 years old) showed the strongest reaction (mean total score 19.1 mm) and 26-65 years old group had relatively stable immunity.
Adolescent ; Female ; Humans ; Hypersensitivity* ; Immunity, Cellular* ; Incidence ; Male ; Prognosis ; Tetanus ; Tuberculin ; Urology

The repair of superficially damaged intestinal epithelium is initiated by restitution. Restitution is the covering of damaged area by the movement of neighboring epithelial cells without cell proliferation. Phenotypic switching of cells (epithelial-mesenchymal transition) is necessary for the cell movement and this process is controlled by complex intracellular signaling pathways conducting dynamic remodeling of actin cytoskeleton. Restitution is regulated by a variety of cytokines and growth factors, and is modulated by integrin-dependent interactions with the extracellular matrix. Understanding the restitution process suggests several possible therapeutic strategies to enhance gastrointestinal wound healing.
Cell Movement ; Humans ; Intestinal Mucosa/*physiology ; Regeneration/*physiology

The repair of superficially damaged intestinal epithelium is initiated by restitution. Restitution is the covering of damaged area by the movement of neighboring epithelial cells without cell proliferation. Phenotypic switching of cells (epithelial-mesenchymal transition) is necessary for the cell movement and this process is controlled by complex intracellular signaling pathways conducting dynamic remodeling of actin cytoskeleton. Restitution is regulated by a variety of cytokines and growth factors, and is modulated by integrin-dependent interactions with the extracellular matrix. Understanding the restitution process suggests several possible therapeutic strategies to enhance gastrointestinal wound healing.
Cell Movement ; Humans ; Intestinal Mucosa/*physiology ; Regeneration/*physiology