The authors investigated LD activity and isoenzyme of total serum and joint fiuid in 18 cases of rheumatoid arthritis, 11 cases of degenerative arthritis, 6 cases of traumatic arthritis, and 10 cases of healthy control. The samples of serum examined were obtained from the anterior cubital vein and joint fluid from the knee joint except 2 cases of the rheumatoid arthritis, which were obtained from the wrist joint, in Busan National University Hospital from the April to July 1981. Total serum LD activity was measured by method of Caboud-Wroblewski and isoenzyme fractions were analysed by cellulose acetate electrophoresis. The results obtained were as follows: l. In the patients with joint diseases, total serum LD activity was significantly increased than that of healthy control. 2. The LD1 isoenzyme of joint fiuid was increased in degenerative arthritis than that in rheumatoid arthritis, and LD3 and LD5 isoenzymes were significantly increased in rheumatoid arthritis than that in degenerative arthritis. 3. In correlation between total LD and LD isoenzymes activities in joint fluid, total LD activity of rheumatoid arthritis was correlated with decrease of LD1 isoenzyme and increase of LD5 isoenzyme activity, and total LD activity of the degenerative arthritis was correlated with increase of LD1 isoenzyme activity. 4. In correlation between isoenzyme activity and gamma globulin of joint fluid, LD3 and LD5 isoenzyme activity in rheumatoid arthritis and LD4 in degenerative arthritis was correlated with increase of gamma globulin.
Arthritis ; Arthritis, Rheumatoid ; Busan ; Electrophoresis, Cellulose Acetate ; gamma-Globulins ; Humans ; Isoenzymes ; Joint Diseases ; Joints ; Knee Joint ; Methods ; Osteoarthritis ; Synovial Fluid ; Veins ; Wrist Joint

In order to study the effect of ascorbic acid on the growth of the fetal rat long bones in calcium free culture medium, fetal femurs from rat fetus on 19th day of gestation were cultured for 1, 3, 5, 7 and 9 days in medium described below. Culture media used were MEM, Ca++
Animals ; Ascorbic Acid ; Bone and Bones ; Bone Marrow ; Bone Matrix ; Calcium ; Cartilage ; Chondrocytes ; Collagen ; Culture Media ; Cytoplasm ; Diaphyses ; Epiphyses ; Femur ; Fetus ; Formaldehyde ; Glutaral ; Methods ; Micropore Filters ; Microscopy ; Microscopy, Electron ; Osmium ; Periosteum ; Pregnancy ; Rats ; Stainless Steel

After the stabilization using unreamed intramedullary interlocking nails for the management of fractures of the tibial shaft, a large percentage of patients whose fractures would proceed to delayed bony union may be subject to secondary surgical procedure. The purpose of this study is to determine whether ultrasound, through its potential early assessment of the presence or absence of callus at the fracture site, can be used to predict the need for secondary surgical procedure. Fourteen tibial fractures (5 open, 9 closed) were treated with unreamed interlocking intramedullary nailing. Radiographs were obtained to monitor the maintenance of reduction and fracture healing. The results of ultrasound studies were obtained at two-week intervals for 10 weeks postoperatively and read by a radiologist. In prospective study of 14 patients, tibial fractures treated with unreamed interlocking intramedullary nailing were analyzed from June 1995 to February 1997 and following results were obtained. 1. Ultrasound correctly predicted fracture healing in all 10 fractures that subsequently progressed to fracture union. 2. Of the 4 fractures that did not heal, ultrasound was able to predict delayed union before it was radiographically evident. 3. Ultrasound predicted fracture healing at an average of 42 days (range, 22-70 days). In comparison, the plain radiographs showed fracture healing at an average of 126 days (range, 70 - 180 days). In conclusion, the tibia was ideal for ultrasound study because of the thin overlying soft tissue. Furthermore, the presence of the intramedullary nail facilitated evaluation of the intervening tissue. And there were several advantages of ultrasound over other imaging modalities. It was noninvasive, easy to use, and painless method of evaluation that does not use ionizing radiation.
Bony Callus ; Fracture Fixation, Intramedullary ; Fracture Healing* ; Humans ; Prospective Studies ; Radiation, Ionizing ; Tibia* ; Tibial Fractures ; Ultrasonography*

No abstract available.

The conventional therapy for supracondylar fracture of the femur is open reduction and internal fixation with plate and screws. But, wide dissection of the thigh with the following devascularization of the distal femur caused a high incidence of complications like joint stiffness, delayed union, nonunion, infection and loosening or breakage of plate and screws. On the contrary, interlocking intramedullary nailing does not need the exposure of the fracture so that soft tissue dissection and devascularization can be minimized. Undoubtedly, rapid healing by abundant formation of callus is promoted, irrespective of the degree of comminution. We reviewed 9 cases of interlocking intramedullary nailing for supracondylar and intercondylar frtures of the distal part of the femur at Pusan National University Hospital from November 1993 to December 1995. The mean time to union was 14 weeks (range, 11-23weeks). According to Rating System of Neer et al., excellent was 7 cases, satisfactory in 1 case and unsatisfactory in 1 case. Interlocking intramedullary nailing was applied to Type A, C1 and C2 of the AO classification but considered difficult to apply to Type B and C3. For the firm fixation and the prevention of nail breakage, the nail should be inserted deepest in order to place two distal screws as distally as possible from the fracture site. If necessary the distal tip of nail was cut off for use. Interlocking intramedullary nailing does not need the exposure of fracture site. Satisfactory result could be obtained by reducing complications such as joint stiffness, delayed union, nonunion, infection and breakage of implants caused by wide dissection of the thigh with the following devascularization of the distal femur for the open reduction and internal fixation with plate and screws. It also could be obtained by performing early ROM exercise with firm, fixation.
Bony Callus ; Busan ; Classification ; Femur* ; Fracture Fixation, Intramedullary* ; Incidence ; Joints ; Thigh

No abstract available.
Dislocations* ; Joints*

No abstract available.
Dislocations* ; Spine*

The cement-free hip prosthesis coated with hydroxyapatite was developed to obtain primary firm fixation by an enhanced anatomic design and secondary biologic stable fixation by hydroxyapatite which is bioactive and has the same chemical and structural components with those of human bone tissue in total hip arthroplasty. Between January 1992 and June 1994, we used ABG cement free hip prosthesis (Anatomique Benoist Giraud, Howmedica Europe, Staines, England) in 28 hips (avascular necrosis of femoral head; 17, osteoarthritis; 6, posttraumatic arthritis; 3, rheumatoid arthritis; 2) of 25 patients in Pusan National University Hospital. Those cases had a minimum of two years and maximum of four years and five months (average three years and six months) of follow up, including analysis of the clinical and radiological data. The results were obtained as follows: 1. The average Modified Harris Hip Score increased from 51 points preoperatively to 96 points at last follow up. Almost all cases (97%) were excellent or good results in Modified Harris Hip Score. 2. In radiologic results, no migration of the cup, no change in the inclination of the cup, ar.d no oste-olysis around the cup and the stem were observed. Endosteal bone apposition around the cup was found in 54% of the cases and subcortical cancellous densification around the stem was found in 89%. This results indicate that we obtained direct and biologic firm fixation without fibrous tissue interposition between bone and metallic component by inducing on-growth of bone. 3. In the radiologic follow up according to the initial bone quality, it was demonstrated that the incidences of cortical hypertrophy, calcar resorption, and radiolucent line in type B and type C were higher than those in type A. The early clinical and radiological results of the cement-free hip prosthesis coated with hydroxyapatite are encouraging, although a longer follow up period is necessary.
Arthritis ; Arthritis, Rheumatoid ; Arthroplasty, Replacement, Hip* ; Bone and Bones ; Busan ; Durapatite* ; Europe ; Follow-Up Studies ; Head ; Hip ; Hip Prosthesis ; Humans ; Hypertrophy ; Incidence ; Necrosis ; Osteoarthritis

No abstract available.
Dislocations*

PURPOSE: The proximal femoral morphology of normal Koreans was studied by radiographs. MATERIALS AND METHODS: Proximal femoral morphology and ratio of lever arm in abductor muscle in 101 normal adults were measured and their correlations were comparatively analyzed. RESULTS: The femoral head diameter was 48.7+/-4.0 mm. The femoral neck shaft angle was 127.8+/-5.2 degree. The medial trabeculae angle was 20.0+/-1.2 degree. The femoral offset was 36.5+/-3.9 mm. Also, the tip of the greater trochanter relative to the level of femoral head center lay higher in 91 of 101 subjects (90.1%), upon examination and in average, located 3.8+/-3.4 mm higher. The ratio of the abductor lever arm to the distance between the femoral head center and the body midline was 1: 2.1+/-0.2. CONCLUSIONS: The relationship between the tip of the greater trochanter of femur and the center of femoral head appeared to have wide individual differences with 0.89 coefficient of variation. Therefore, the tip of the greater trochanter was an unreliable anatomical indicator of femoral head center. The femoral neck shaft angle and the length of the medial trabeculae showed a significant correlation (P=0.001). However, a significant negative correlation existed between the femoral neck shaft angle and the femoral offset (P=0.024)
Adult* ; Arm ; Femur ; Femur Neck ; Head ; Humans ; Individuality