1.Epidermolysis Bullosa Acquisita: A Complete Remissions versus Patients with Long-term Persistent Activities.
Dong Kyu HWANG ; Chang Woo LEE
Korean Journal of Dermatology 1999;37(6):715-718
BACKGROUND: In epidermolysis bullosa acquisita, it has been recognized that there exists heterogeneity in the clinical and serologic/immunopathologic features. OBJECTIVE: We examined patients with epidermolysis bullosa acquisita to see if there were any associated clinical and serological features which may predict disease activity or prognosis in the disease. METHODS: Clinical and some serologic features were compared. between 2 groups of patients with epidermolysis bullosa acquisita; one with complete remission of the symptoms and signs of the disease for more than 2 years and the other group with persistent disease activities of longer than 5 years.
Epidermolysis Bullosa Acquisita*
;
Epidermolysis Bullosa*
;
Humans
;
Population Characteristics
;
Prognosis
2.Avascular Necrosis of the Femoral Head following Treatment of Congenital Dislocation of the Hip
The Journal of the Korean Orthopaedic Association 1985;20(5):769-784
Avascular necrosis of the femoral head has been recognized as one of the most serious and frequent complications following the initial treatment of congenital dislocation of the hip. It is now well accepted that this particular complication is iatrogenic and may be avoided by careful and adequate treatment. The reported incidence of avascular necrosis is variable because of various methods of treatment and different diagnostic criteria. We retrospectively reviewed 130 patients(144 hips) with congenital dislocation of the hip, who were treated at Seoul National University Hospital during 10 year-period from January 1974 to December 1983, and found 13 patients (13 hips) with avascular necrosis of the femoral head. We analyed avascular necrosis following treatment of congenital dislocation of the with respect to various methods of treatment, possible causes, types of avascular necrosis, to radiological findings, and to functional results. 1. The incidence of avascular necrosis following treatment of congenital dislocation of the hip in our series was 9.0%(13/144 hips). 2. The average age of the patients with avascular necrosis was 3 years, the youngest being 4 months and the oldest being 10 years. The average follow-up period was 2 year and 2 months. 3. The incidence of avascular necrosis in the closed reduction series was higher in those between 6 months to 18 months with 10.5%, as compared to 7.1% in those 6 months and under 6.7% in those 18 months and over. In the open reduction series, the incidence increased as the age increased, being 5.9%, 12.4%, 15% in the groups 18 months to 3 years, 3 to 6 years, and 6 years and over, respectively. 4. The incidence of avascular necrosis in those who had priliminary traction was 8.3%, where as that in those who had not was 16.6%, being twice as much. 5. The incidence of avascular necrosis decreased as the traction time prolonged, being 9.0% in 7 days or less, 7.7% in 8 to 14 days, 7.1% in 15 to 21 days and nil in 22 days or more. 6. The incidence of avascular necrosis in the skin traction group was 5 times as much with 11.5%, as in the skeletal traction group with 2.2%, despite older age in the latter. 7. The incidence of avascular necrosis in the open reduction group was slightly higher with 9.5%, than in the closed reduction group with 8.6%. 8. All 6 cases of avascular necrosis following closed reduction occurred when Lorenz or frog-leg cast was applied initially after reduction despite attention to avoid extreme abduction. Avascular necrosis were not encountered in those who had Lange or human position cast as the initial form of immobilization. 9. In the closed reduction, avascular necrosis occurred 8.1% in those who had adductor tenotomy and 10.0% in those who had not. In the open reduction, avascular necrosis occurred 7.9% in those who had adductor tenotomy and 18.1% in those who had not, suggesting significant role of adductor tenotomy in the prevention of avascular necrosis. 10. Avascular necrosis was attributable to excessive abduction in 7 hips, to undue pressure of femoral head in one hip, to open reduction in 3 hips, to post-operative infection in one hip, and to non-union of subtrochanteric osteotomy in one hip. 11. Of the 13 hips, following roentgenograms were available in 11. According to the classification of Bucholz and Ogden, type I, II, III, IV were 7, 0, 3, and 1 hips, respectively. 12. Functional results of the 13 hips of avascular necrosis, according to Kalamchi and MacEwen's criteria, were Good, Fair, Poor in 9, 3, and 1 hips, respectively.
Classification
;
Dislocations
;
Follow-Up Studies
;
Head
;
Hip
;
Humans
;
Immobilization
;
Incidence
;
Necrosis
;
Osteotomy
;
Retrospective Studies
;
Seoul
;
Skin
;
Tenotomy
;
Traction
3.Monoclonal Antibodies Specific for Treponema Pallidum , Nichols Strain.
Min Geol LEE ; Kyu Kwang HWANG ; Jung Bock LEE
Korean Journal of Dermatology 1990;28(6):686-701
No abstract available.
Antibodies, Monoclonal*
;
Treponema pallidum*
;
Treponema*
4.Effect of the Orthopedic Immobilization on Ca, P and Blood Pressure
Han Koo LEE ; Woo Chun LEE ; Kyu Chun HWANG
The Journal of the Korean Orthopaedic Association 1983;18(5):843-849
No abstract available in English.
Blood Pressure
;
Immobilization
;
Orthopedics
5.A Case of Conjoined Twins.
Kyu Gap HWANG ; Myung Hyun LEE ; Choung Ku YUN
Journal of the Korean Pediatric Society 1983;26(7):696-701
No abstract available.
Twins, Conjoined*
6.Isolated Dorsal Dislocation of the Trapezoid.
Dong Ju CHAE ; Kyu Hwang UM ; Jong Moon LEE
The Journal of the Korean Orthopaedic Association 1998;33(3):929-933
Isolated dorsal dislocation of the trapezoid is an unusual injury. In 1990 Ostroski found only 15 cases of dorsal dislocation of the trapezoid in the world literature. The trapezoid is a wedge-shaped bone with the larger dorsal and smaller volar surface area, and stabilized by strong palmar ligaments. Therefore the dislocation of the trapezoid is produced hy a violent force against the dorsum of the hand on a rigid object and often associated with other injuries of the hand. The diagnosis is often missed or delayed perhaps secondary to the difficulty in interpreting the X-ray if you have not kept in mind. Several therapeutic modalities are performed from the collected experience of the authors reporting this injury. A rare example of an isolated dorsal dislocation of the trapezoid bone is described.
Diagnosis
;
Dislocations*
;
Hand
;
Ligaments
;
Trapezoid Bone
7.Slipped Femoral Capital Epiphysis: Report of Two Cases
Won Sik CHOI ; Duk Yong LEE ; Kyu Chun HWANG
The Journal of the Korean Orthopaedic Association 1982;17(5):983-987
Slipped femoral capital epiphysis is a rare entity in Korea and only three cases have been reported so far1,2,3). One of our cases was a unilateral mild chronic slip in a 14 year old boy with Frohlich body type. It was treated by gentle closed reduction followed by knowles' pin fixation. The other case, a 20 year old female, presented chondrolysis of the left hip. Scrutinization of roentgenograms revealed typical features of an unrecognized slipped femoral capital epiphysis. It was treated by Wagner resurfacing replacement arthroplasty.
Arthroplasty, Replacement
;
Epiphyses
;
Female
;
Hip
;
Humans
;
Korea
;
Male
;
Somatotypes
8.Leg Length Equalization by Correction of Pelvic Obliquity and Acetabular Dysplasia
Duk Yong LEE ; Yong Hoon KIM ; Kyu Chun HWANG
The Journal of the Korean Orthopaedic Association 1982;17(6):1137-1148
Fixed pelvic obliquity refers to a composite deformity induced by contractures both above and below the pelvis and the elements of this deformity are frequently interrelated during the period of growth. From the functional standpoint, leg length discrepancy is caused by deformities of the pelvis and lower extremities, such as pelvic obliquity and acetabular dysplasia, as well as by inequality of true limb bone length, and these deformities either aggravate or compensate functional discrepancy. During fhe fourteen years period, from August 1968 to August 1982, at the Department of Orthopaedic Surgery, Seoul National University Hospital, we treated 35 cases of fixed pelvic obliquity and acetabular dysplasia associated with true or functional limb length discrepancy by means of lumbodorsal fasciotomy or pelvic osteotomies such as Salters innominate osteotomy or Steels triple osteotomy, combined, if necessary, with contralateral abductor fasciotomy to gain functional limb length as well as to improve posture and balance. In many cases of residual poliomyelitis, epiphysiodesis was also performed when indicated. These cases were reviewed and following observations were made: 1. Of the 35 cases, residual poliomyelitis with 29 cases (83%) was by far the main cause of leg length discrepancy. Cerebral palsy (2cases), Legg-Perthes disease (2 cases), and fibrous ankylosis secondary to septic hip (2 cases) comprised the remainder. 2. The male-to-female ratio was about equal, being 17 to 18. 3. The average age at the time of operation was 17.9 years, the youngest being 7 years and the oldest being 30 years. The average age at the time of current follow-up was 18.8 years. 67% of those followed was skeletally mature. 4. An average of 1.35cm of bone length was gained radiographically by pelvic osteotomies. Steels triple osteotomy was more effective in gain than Salters innominate osteotomy. 5. An average of 2.43cm of functional length when standing was gained radiographically by lumbodorsal fasciotomy alone. 6. An average of 2.61cm of functional length when standing was gained radiographically by lumbodorsal fasciotomy and combined contralateral Soutters or Campbells fasciotomy. 7. An average of 3.57cm of functional length when standing was gained radiographically by lumbodorsal fasciotomy and combined ipsilateral Steel's triple osteotomy. 8. An average of 1.73cm of functional lengthening when standing was corrected radiographically by ipsilateral Soutter's fasciotomy. 9. When lumbodorsal fasciotomy and Steel's triple osteotomy were combined with contralateral Soutter's or Campbell's fasciotomy, the average radiographic gain in standing length was 3.77cm. 10. Leg length discrepancy in terms of true bone length is conventionally corrected either by epiphysiodesis or bone shortening on the longer limb, or by bone lengthening on the shorter limb. We believe that when leg length discrepancy is associated with fixed pelvic obliquity, frequently aggravating the disability functionally, lumbodorsal fasciotomy and/or pelvic osteotomies on the shorter side and, combined if necessary, Soutters or Campbells fasciotomy on the longer side, can, in many instances, successfully correct or reduce functional limb discrepancy and improve balance, posture and function. Any residual discrepancy, true or functional, may then be corrected by conventional methods.
Acetabulum
;
Ankylosis
;
Bone Lengthening
;
Cerebral Palsy
;
Congenital Abnormalities
;
Contracture
;
Extremities
;
Follow-Up Studies
;
Hip
;
Leg
;
Legg-Calve-Perthes Disease
;
Lower Extremity
;
Osteotomy
;
Pelvis
;
Poliomyelitis
;
Posture
;
Seoul
;
Socioeconomic Factors
;
Steel
9.Revision for Loosened Total Hip Replacement Arthroplasty
Young Min KIM ; Soo Yong LEE ; Kyu Yub HWANG
The Journal of the Korean Orthopaedic Association 1984;19(5):909-924
Concomitant with progressive rise in incidence of loosening of conventional total hip replacement arthroplasty which is mainly due to improper surgical technique and cement fixation, has been increased the incidence of revision. In addition to technical failure, there are many risk factors that effect the loosening, such as young active person, obesity, men, osteopomsis, those with bone stock deficiencies as congenital dysplasia of the hip, and those with previous hemiarthroplasties, etc.. Many experimental and clinical studies have been tried to decrease the incidence of loosening in conventional total hip replacement arthroplasty. One of these trials is the cementless total hip replacement arthroplasty with its simplicity of the surgical procedure. We have experienced 426 hips of the total hip replacement arthmplasty in 396 patients from January 1973 to December 1982, among whom 21 hips in 20 patients who had been undertaken revisional arthroplasty were followed up. The longest follow-up was 7 years and 3 months and the shortest was 2 years, the average being 2 years and 4 months. 1. Ankylosis of the hip and sequeale of the infected hip were most common in primary diseases of our revision cases. 2. Revision with cementless total hip replacement arthroplasty of a loosened conventional total hip replacement arthroplasty appears to be available as an effective alternative. 3. Initial attempt with cementlass total hip replacement arthroplasty to prevent loosening after conventional total hip replacement arthroplasty seems to be preferable for patients with ankylosis of the hip or sequeale of the infected hip, especially who are active and young.
Ankylosis
;
Arthroplasty
;
Arthroplasty, Replacement, Hip
;
Follow-Up Studies
;
Hemiarthroplasty
;
Hip
;
Hip Dislocation, Congenital
;
Humans
;
Incidence
;
Male
;
Obesity
;
Risk Factors
10.Congenital Coxa Vara, Acquired Coxa Vara and Valga
Duk Yong LEE ; Goo Hyun BAEK ; Kyu Chun HWANG
The Journal of the Korean Orthopaedic Association 1984;19(6):1133-1140
In 5 cases of congenital coxa vara, 7 cases of acquired coxa vara and 4 hips in 3 cases of acquired coxa valga, we performed subtrochanteric osteotomies at Department of Orthopedic Surgery, SeoulNational University Hospital, from December 1980 to February 1984. At a relatively short interim follow-up, following observations were made on the correction of the femoral neck-shaft angle deformities. l. In the congenital coxa vara group, at an average follow-up of 1 year and 3 months, 97.9% of the correction obtained by osteotomy was maintained, based on the roentgenographic measurements of femoral neck-shaft angle. In the acquired coxa vara group, at an average follow-up of 1 year and 2 months, 93.3 % of the correction obtained by osteotomy was maintained. In the acquired coxa valga group, at an average follow-up of 1 year and 5 months, 92.9% of the correction obtained by osteotomy was maintained. 2. At final follow-up, leg length gain averaged 1.26cm in the congenital coxa vara group and 2.23cm in the acquired coxa vara group. An average 0.70cm decrease in leg length was noted in the acquired coxa valga group. 3. Trendelenburg sign, which was positive in all the cases of the congenital and acquired coxa vara group, reverted to negative in all. 4. Slight overcorrection in cases of the acquired coxa vara and undercorrection in cases of the acquired coxa valga, is recommended for later loss of surgically corrected femoral neck-shaft angle. In the congenital coxa vara, it appeared that loss of correction was relatively minor.
Congenital Abnormalities
;
Coxa Valga
;
Coxa Vara
;
Follow-Up Studies
;
Hip
;
Leg
;
Orthopedics
;
Osteotomy