2.Nightstick Fracture
Kwon Ick HA ; Sung Ho HAHN ; Min Young CHUNG ; Yeo Chul YOON
The Journal of the Korean Orthopaedic Association 1987;22(3):756-760
Forearm has a unique function of supination and pronation and for the performance of such movements, normal relationship between radius and ulna is indispensable. In ulnar shaft fracture, injuries are resulted mostly from .the external forces such as direct blows or indirect forces in some cases. There are many procedures for treatment of isolated ulnar fracture, but there are still controversies concerning the best management of these fractures. The authors treated fifteen cases surgically of ulnar shaft fracture from January 1982 to December 1986 in the Deparment of Orthopedic Surgery, National-Police Hospital. The results were as follows: 1. The most common age group was twenties with twelve cases(80.0%). 2. The most common cause of injuries were direct blow(80.0%). 3, Location of fracture were middle one third with nine cases(60.6%), while proximal one third accounts for four cases (26.7%) and distal ond third for two cases(13.3%). 4. Transverse fracture were the most common type (53.3%). 5. Displacement of fractures, out of fifteen cases, were witnessed in twelve cases (80.0%) and angulation were in eleven cases(73.3%). 6. In all cases we used operative method and had good functional results.
Forearm
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Humans
;
Methods
;
Orthopedics
;
Pronation
;
Radius
;
Supination
;
Ulna
3.A Clinical Study on the Fractures of the Hand: Factors influencing the results
Hyoun Oh CHO ; Kyung Duk KWAK ; Sung Do CHO ; Yeo Chung YOON
The Journal of the Korean Orthopaedic Association 1989;24(2):453-461
The author reviewed 148 cases of phalangeal and metacarpal fractures of the hand, excluding distal phalangeal and carpal bones, in 75 patients treated at the Department of Orthopaedic Surgery, Dong-Kang Hospital, from January, 1984 to December, 1987. We obtained the following results ; 1. Better results were obtained in younger patients, transveres or spiral fractures, and cases immobilized in MP joint flexion. 2. Factors that led to worse results included older age, comminuted fracture, wide displacement, intra articular fracture, associated tendon injury, intraarticular pin placement. 3.In case of K-wire fixation, dorsal placement of the wire revealed better result than volar one.
Carpal Bones
;
Clinical Study
;
Fractures, Comminuted
;
Hand
;
Humans
;
Joints
;
Tendon Injuries
4.The Study of Patellar Movement During the Knee Motion
Kwon Ick HA ; Sung Ho HAHN ; Min Young CHUNG ; Hee Joong KIM ; Yeo Chul YOON
The Journal of the Korean Orthopaedic Association 1989;24(2):361-364
Moving on the femoral srticular surface, the patella is doing a significant role in the patellofemoral mechanism as one of the most important components of the knee. The knowledge of patellar movement would be very helpful to understand the functional mechanism of the knee We studied the distance of patellar movement during the knee motion on the lateral X-ray view of 100 normal adult knees. The results were as follows :1. The average distance of patellar movement from full extension to full flexion of the knee was 8.4cm. 2. Patella moves average 1.7cm(20.2%) form 0° to 30° flexion, 2.6cm(31.0%) from 30° to 60° flexion, 1.7cm(20.2%) from 60° to 90° flexion, 1.3cm(15.5%) from 90° to 120° flexion and l.lcm(13.1%) from 120° to full flexion.
Adult
;
Humans
;
Knee
;
Patella
5.Clinical analysis of Peripheral Nerve Injury
Moon Sang CHUNG ; Choong Hee WON ; Kang Sup YOON ; Bong Goo YEO ; Sung Soo CHUNG
The Journal of the Korean Orthopaedic Association 1990;25(2):347-352
Peripheral nerve injury occurs mostly in company with tendon and muscle injuries, fractures, or dislocations. Because of the disabilities and socioeconomic loss caused by such injuries, much attention must be paid to the initial treatment, and later to the reconstruction and rehabilitation. At department of Orthopedic Surgery, Seoul National University Hospital, 336 patients of nerve lesion were treated from Jan, 1980 to Dec, 1988. Among them 128 patients were nerve compression syndrome (carpal tunnel 52 patients, cubital tunnel 40 patients, thoracic outlet 16 patients, others 20 patients), and 50 patients were brachial plexus injury, and 168 cases were peripheral nerve injury. 50 patients of the peripheral nerve injury were treated with reconstruction and 118 patients were treatred with neurorrhaphy, nerve graft, and neurolysis. Of the 118 patients, 94 patients were followed up for more than one year, and the results of neurorrhaphy, nerve graft and neurolysis were analyzed. In 46 patients (73.0%) of the patients treated with neurorrhaphy, 7 patients (58.3%) with nerve graft, and 15 patients (78.9%) with neurolysis, good or excellent results were obtained.
Brachial Plexus
;
Dislocations
;
Humans
;
Nerve Compression Syndromes
;
Orthopedics
;
Peripheral Nerve Injuries
;
Peripheral Nerves
;
Rehabilitation
;
Seoul
;
Tendons
;
Transplants
6.Morphological structure of accessory spleen in Chinese hamsters.
Yeo Sung YOON ; Jae Won SHIN ; Cheol Beom PARK ; Yang Seok OH ; In Se LEE ; Heungshik S LEE ; Joon Sup LEE
Journal of Veterinary Science 2000;1(2):73-75
To attempt a rigorous definition of the structure of the accessory spleen (AS) in the Chinese hamster, we examined twenty-one animals, and found AS in 5 animals (23.8%), which were over 7-month-old. The AS had no connection with the main spleen and was seen as a dark red oval organ (0.7 mm x 1.5 mm), which was embedded in the adipose tissue near the tail of the pancreas. It was demarcated from the adipose tissue and some pancreatic tissue. The organ was encapsulated by thin collagenous connective tissue and smooth muscle fibers, and contained lymphatic nodules, reticular fibers, nodular central arterioles, macrophages and megakaryocytes. Notably the incidence of AS appeared to increase with age in the Chinese hamsters.
Adipose Tissue/anatomy & histology
;
Age Factors
;
Animals
;
Connective Tissue/anatomy & histology
;
Cricetinae
;
Cricetulus/*anatomy & histology
;
Erythrocytes/cytology
;
Lymphocytes/cytology
;
Muscle, Smooth/anatomy & histology
;
Pancreas
;
Spleen/*anatomy & histology/cytology
7.Alveolar Soft
Hyoun Oh CHO ; Kyung Duk KWAK ; Sung Do CHO ; Yeo Chung YOON ; Giu Ran KIM ; Young Ae HONG
The Journal of the Korean Orthopaedic Association 1989;24(3):997-1000
Alveolar soft-part sarcoma is a rare malignant neoplasm. It occurs most commonly in the deep tissue of the extremity, particularly in the anterior aspect of the thigh. It usually presents as a slow-growing, painless mass with little functional impairment. Because of the relative lack of symptoms, it may be easily overlooked. The course of the disease tends to be long but unrelenting, and local recurrences are frequent. There were no lifetime cures in the reported cases. This tumor is relatively unknown to orthopaedic surgeons, and a wider knowledge of its characteristics may lead to its more frequent recognization, Recently, two cases of alveolar soft-part sarcoma were encountered on the orthopaedic department of Dong-kang Hospital, Ulsan. In case 1, the tumor was found in the vastus lateralis muscle; and in case 2, vastus intermedius muscle. The authors will present these cases in detail to provide a glance at this very rare but more frequently recognizable tumor, the alveolar soft-part sarcorna.
Extremities
;
Quadriceps Muscle
;
Recurrence
;
Sarcoma
;
Sarcoma, Alveolar Soft Part
;
Surgeons
;
Thigh
;
Ulsan
8.Percutaneous Antegrade Transluminal Ureteral Dilatation of Ureteral Stricture in Renal Transplant Patient.
Tae Gyun KWON ; Yeo Deuk YOON ; Sung Kwang CHUNG ; Yoon Kyu PARK ; Sae Kook CHANG
Korean Journal of Urology 1990;31(5):781-785
The development of balloon catheters and advances in percutaneous endourology have made transluminal dilatation a safe and effective procedure for the treatment of benign ureteral strictures. Herein we introduce a case of our successful experience of percutaneous antegrade balloon dilatation of the allograft ureteral stenosis.
Allografts
;
Catheters
;
Constriction, Pathologic*
;
Dilatation*
;
Humans
;
Ureter*
9.Preventive management of uric acid nephrolithiasis with potassium citrate.
Byung Woo] SON ; Yeo Deuk YOON ; Sung Kwang CHUNG ; Yoon Kyu PARK ; Dong Kyu CHO
Korean Journal of Urology 1991;32(6):937-940
Eleven patients with uric acid nephrolithiasis(Five with uric acid stones alone and six with both uric acid and calcium stone) underwent long-term treatment(0.5 to 3.75 years, mean of 2.33 years) with potassium citrate(30 to 80 mEq/day. usually 60mEq/day). Urinary pH increased from low(5.0-6.0) to normal(6.5-7.0) during treatment. Urinary content of uric acid which was 584+/-150 mg, day. slightly increased to 595+/-163 mg/day following treatment. Serum content of uric acid which was 6.45+/-0.9 mg%, slightly decreased to 6.1+/-0.8 mg%. The protein matrix was round in all 11 cases. And 4 types of nucleus were found. which were ca. oxalate, ca. phosphate, dried blood and suture material During the period' (Jan. 1987-Mar. 1990) of preventive management(enough fluid intake. restiction of animal protein and Polycitra-K), no new stones were found.
Animals
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Calcium
;
Humans
;
Hydrogen-Ion Concentration
;
Nephrolithiasis*
;
Potassium Citrate*
;
Potassium*
;
Sutures
;
Uric Acid*
10.Comparative Analysis of CT, Ultrasonography and Angiography in Staging Renal Cell Carcinoma.
Yeo Deuk YOON ; Sung Kwang CHUNG ; Yoon Kyu PARK ; Sae Kook CHANG
Korean Journal of Urology 1989;30(4):492-495
In the 1980s ultrasound and CT gradually replaced angiography as the primary diagnostic modalities for renal masses. From 1983 to 1988, a comparative diagnostic study was carried out on 24 patients with pathologically proven renal cell carcinoma which were staged by various methods. Staging was correct with computerized tomography in 75 per cent of the lesions (15 of 20), with ultrasound in 68.2 per cent (15 of 22) and angiography in 53.8 per cent (7 of 13). We conclude that at the present time CT is the optimal technique to stage renal cell carcinoma. Angiography should be used selected cases not adequately evaluated by CT or ultrasound.
Angiography*
;
Carcinoma, Renal Cell*
;
Humans
;
Ultrasonography*