1.Alternative approaches to preserve MSC progenitor potency.
Blood Research 2017;52(1):1-2
No abstract available.
Family
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Mesenchymal Stem Cell Transplantation
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Mesenchymal Stromal Cells
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Preservation, Biological
2.The Clinical Study of Autotransfusion in the Orthopedic Surgical Field
Jeong Hwan SON ; Jang Seok CHOI ; Hyun Oh CHO ; Young Goo LEE
The Journal of the Korean Orthopaedic Association 1983;18(1):147-152
Requirement of blood transfusion has been progressively increased and supplements by volunteer donor are not sufficient to their requirements. Moreover homologous blood transfusion are not supplied without risks, espcially the transmission of the serum hepatitis. Twenty procedures, including two total hip replacement arthroplasty, were carried out with acute hemodilutional autotransfusion. The results of this study show that autotransfusion is a safe method without difficulty of blood replacement in elective orthopedic procedures.
Arthroplasty
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Arthroplasty, Replacement, Hip
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Blood Transfusion
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Blood Transfusion, Autologous
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Clinical Study
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Hepatitis
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Humans
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Methods
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Orthopedic Procedures
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Orthopedics
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Tissue Donors
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Volunteers
3.The Treatment of Femoral Head Fractures Associated with Posterior Hip Dislocations
Jae Do KIM ; Jang Seok CHOI ; Hyun Oh CHO ; Young Goo LEE
The Journal of the Korean Orthopaedic Association 1983;18(1):133-139
Femoral Head fracture associated with posterior dislocation of the hip was once considered a rare industrial injury. However, the advant of high-speed travel has contributed to its increased incidence. Ten cases of fractured femoral head with posterior dislocation of the hip were treated at the Busan Paik Hospital between June 1979 and June 1982. During the same period, a total of 38 posterior hip dislocations were treated. The patients were followed for the average of 19.3 months, the range being 6 months to 3 years. There were 9 men and 1 woman the age ranged from 25 to 56 years. The fractures were classified according to Pipkin and the results were evaluated by Epsteins criteria. 1. The incidence of femoral head fracture was 26.3%, 10 cases of 38 posterior hip dislocations. 2. The better result was noted in open method than in closed method. 3. The absolute surgical indications were considered as followings. a. inadequate closed reduction of head fragment especially the large one. b. the involvement of weight bearing portion of femoral head. c. the hip joint pain caused by impingement of small fragment between joint space. 4. Arthrogram was helpful to find the concealed small fragment when the hip joint pain persisted with negative findings in ordinary x-ray.
Busan
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Dislocations
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Female
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Head
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Hip Dislocation
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Hip Joint
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Hip
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Humans
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Incidence
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Joints
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Male
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Methods
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Weight-Bearing
4.The Treatment of the Pelvic Bone Fractures by Means of Hoffmann's External Skeletal Fixation Devices
Jang Seok CHOI ; Young Goo LEE ; Hyon Oh CHO ; Pan Suck KIM
The Journal of the Korean Orthopaedic Association 1983;18(1):67-73
We have exprierienced 10 cases of pelvic bone fractures that were treated by Hoffmann's external fixation devices from June, 1979 to June, 1982. As a result, following advantages were noted; 1. Rapid recuction of pain, prevention of serious early complication, and easiness of nursing care were possible. 2. Late complications such as lumbosacral pain and gait disturbance could be preventable in majority of the patients, as well as shortening the duration of the hospitalization.
External Fixators
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Fracture Fixation
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Gait
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Hospitalization
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Humans
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Nursing Care
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Pelvic Bones
5.The Treatment of Bilateral Congenital Dislocation of the Hip
Jae Do KIM ; Young Chang KIM ; Jang Seok CHOI ; Young Goo LEE ; Hyoun Oh CHO
The Journal of the Korean Orthopaedic Association 1983;18(3):501-506
There are few reports in the literature on how to care and manage bi!ateral congenital dislocation of the hip. Six patients have been encountered at this hospital from June 1979, of them four children had operative treat ment and the other two conservative. As a result of our experience about the management of bilateral congenital dislocation of the hip. The authors obtained the following conceptions; 1. The patient with bilateral dislocation was rather delayed in diagnosis. Therefore, in comp the treatment of bilateral cases was poorer than that of unilateral case. 2. In the case of the dislocated hip that might be easily reduced and maintained in the stab servative care was usually recommeded even in the older child. Unstable, unreduced hip,; hip in old children, the more definitive operation and internal & external rigid immobilization mandatory to get good result. 3. It might be beneficial to operate the more deformed and resistive hip first, and then to p with the same procedure 2 weeks after the first operation.
Child
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Diagnosis
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Dislocations
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Fertilization
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Hip
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Humans
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Immobilization
6.In Vitro Biomechanical Evaluation of Proper Position of Acetabular Cup and Femoral Stem for T.H.R.A.: by Using Mueller Apparatus
Hyun Oh CHO ; Young Chang KIM ; Jang Seok CHOI ; Young Goo LEE ; Pan Suck KIM
The Journal of the Korean Orthopaedic Association 1983;18(4):635-642
The Primary objectives of total hip replacement arthroplasty are not only to relieve pain, but to improve motion and function. The range of motion following total hip replacement arthroplasty depends on several factors, especially the position of acetabular cup and femoral stem. Also the oriental need more flexion and abduction in hip motion for squarting position as compared with the European who have different living activity. We studied in vitro biomechanical evaluation of proper position of acetabular cup and femoral stem for T.H.R.A. The following results were obtained: l. Effect of component orientation on R.O.M. 2. Acceptable position of prosthesis was as follows: Acetabular cup: inclination 40–50 degree, anteversion 20–30 degree, Femoral stem: anteversion 0–10 degree. 3. The sum of ideal anteversion of the two components was 30–35 degree 4. Oriental sitting position was performed normally in the ideal position of the prosthesis 5. Acetabular cup is likely insert in the position as far as post sup rim of acetabulum mightbe feasible to be full recovered.
Acetabulum
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Arthroplasty
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Arthroplasty, Replacement, Hip
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Hip
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In Vitro Techniques
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Prostheses and Implants
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Range of Motion, Articular
7.Distal Femoral Fracture
Hyun Oh CHO ; Jang Seok CHOI ; Young Goo LEE ; Joo Wan PARK ; Jeong Hwan SON
The Journal of the Korean Orthopaedic Association 1984;19(4):713-718
Fractures involving joints and about the joints provide complex problems with small comminuted fractures, surrounding soft tissue injuries and articular cartilage damage. Various problems are also encountered on the weight bearing surface, especially on the convex side of the distal Femur. Even though many auther had recommended kinds of management upto now, operative methods are more suggested in order to get good results regarding with the accurate anatomical reduction, rigid internal fixation and early joint motion. The clinical analysis of rnanagements of 20 cases of distai femoral fracture demonstrate that seperate dual incision-bilateral or right angle plane-to originate fracture site, and anatomical reduction & rigid internal fixation, early non-weight bearing ROM exercise of joint were sometimes mandatory to treat the displaced, comminuted fracture.
Cartilage, Articular
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Femoral Fractures
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Femur
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Fractures, Comminuted
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Joints
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Soft Tissue Injuries
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Weight-Bearing
8.Histiocytosis-X: A Case Report
Koo Hyun KIM ; Jae Gong PARK ; Jang Seok CHOI ; Hyoun Oh CHO ; Young Goo LEE
The Journal of the Korean Orthopaedic Association 1985;20(6):1212-1216
Histiocytosis-X has several mode of presentation, from the mildest solitary eosinophilic granuloma of bone to the most severe, with multiple granulomata in bones and soft tissues. This disease previously described as eosinophilic granuloma, Hand-Schuller-Christian disease and Letterer-Siwe disease. Lichtenstein (1953) used the term histiocytosis-x to encompass the above three names. We experienced a case of histiocytosis-x which had occured at multiple site of bones. The patient has good general condition with complete subsidance of specific symtoms and signs in our thirty-eight months follow up treatment.
Eosinophilic Granuloma
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Follow-Up Studies
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Histiocytosis, Langerhans-Cell
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Humans
9.Combined Procedure of Open Reduction and Shortening of the Femur in Treatment of C.D.H. in Older Children
Heon YANG ; Jae Gong PARK ; Jang Seok CHOI ; Hyoun Oh CHO ; Young Goo LEE
The Journal of the Korean Orthopaedic Association 1986;21(2):329-338
Older children with neglected ongenital dislocation of the hip is not easily reduced. Even if reduction is achieved, the overstretched muscle tends to resume its original length, provoking either a redilocation or a pressure necrosis with resultant stiffness of the hip joint and deformity. The authors treated 15 cases of the C.D.H. in older children by combined procedure of open reduction, Salter's innominate osteotomy, and femoral shortening with redirection of the femoral head. The results were obtained in 15 operated hips with follow-up from 1 to 5 and 3/12 years. l. We had good results in 11 among 15 cases(73%). 2. Femoral shortening was spontaneously correctd 1.3cm in 1 year, 2.1cm in 2 years follow-up. 3. The improvement of acetabular index following Salter's innominate osteotomy was about 12.4 degrees. 4. We had no serious complication such as avascular necrosis, stiffness, and redislocation, but 3 cases of mild limitation of hip joint motion were noted. 5. Two skin incision were more convenient in operative procedure and handling of instruments than one incision(Klisić).
Acetabulum
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Child
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Congenital Abnormalities
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Dislocations
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Femur
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Follow-Up Studies
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Head
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Hip
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Hip Joint
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Humans
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Necrosis
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Osteotomy
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Skin
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Surgical Procedures, Operative
10.Clinical Study of Supracondylar Fractures of the Humerus in Children
Woo Min JEONG ; Jae Gong PARK ; Jang Seok CHOI ; Hyoun Oh CHO ; Young Goo LEE
The Journal of the Korean Orthopaedic Association 1986;21(2):288-294
The most common fracture about the elbow joint in chilren is a supracondylar fracture. The displaced fracture is difficult to manage due to the potential danger of Volkmann's ischemia, nerve injury, and malunion, During the period of 6 years from June, 1979 to June, 1985, 63 children with supracondylar fractures of the humerus were treated at Pusan Paik Hospital, Inje Medical College, and analyzed. The results are summarized as follows: 1. The average age was 7.1 years, ranged from 1 year to 14 years, and the male and female ratio was 2.5: l. 2. In type of fracture, extension type was 92% and flexion type was 8%. In displacement of fracture, Grade I was only 2 cases, Grade III and IV were 87.3%. Posteromedial displacement was 42.8% (27 cases). 3. At the time of admission, 15cases(23.8%) accompanied nerve injury, of these median nerve injury (9 cases) was most common. All the patient with nerve injury were completely recovered within 14 months after reduction. 4. Severe cubitus varus was 14.2%, and severe limitation of elbow motion was 1.6%. 5. Of 61 displaced fractures, 37 patients were treated with closed reduction and percutaneous pin fixation. By Flynn's criteria, satisfactory results were obtained in 36 of the 37 patients(97.3%) treated with percutaneous pinning. 6. In the displaced fractures, closed reduction and percutaneous pinning is a satisfactory method for obtaining and maintaining reduction while preserving vascular function, if acute flexion is necessary for stable reduction.
Busan
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Child
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Clinical Study
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Elbow
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Elbow Joint
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Female
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Fractures, Closed
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Humans
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Humerus
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Ischemia
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Male
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Median Nerve
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Methods