No abstract available.
Maxillary Fractures

The incidence of trochanteric fracture of the femur is increasing, which is likely to continue for many years because of an increase in traffic accidents and the population of elderly people. The primary goal in the treatment of an elderly patient with an intertrochanteric hip fracture is to return the patient to his prefracture activity without any complication, as soon as possible. Rapid mobilization with stable internal fixation helps to prevent skin ulceration, pneumonia, urinary stasis, thromboembolic disease and other complications of confinement to bed in the elderly. Stable internal fixation depends mainly upon the fracture type and operative techniques. A clinical study of operative techniques was done in twenty three patients with trochanteric fracture of the femur who had been admitted and treated surgically at the Orthopaedic Department of W.M.B.H. during of two years from Mar. 1982 to Feb. 1984. The following are brief descriptions of the operative techniques. l. An L-shape incision and refiection of the vastus lateralis muscle provided wide exposure and facilitated anatomical reduction under direct vision. 2. The nail insertion site was selected at a slightly eccentric position anterior to rather than exactly midway from the opposite lateral cortex of the lesser trochanter. Therefore the nail could be laid rigidly between the thick anteromedial cortex and the posteromedial calcar portion. 3. The best stable position among the fracture line, the neck shaft angle and the nail plate could be obtained by the yoking procedure. It also allowed for later proximal migration of the shaft fragment and fracture impaction without impingement on the base of the barrel.
Accidents, Traffic ; Aged ; Clinical Study ; Femur ; Hip ; Humans ; Incidence ; Neck ; Pneumonia ; Quadriceps Muscle ; Skin Ulcer

In vitro culture of Toxoplasma gondii in HL-60 cells cnd cell-mediated immunity against Toxoplasma in dimethylsulfoxide(DMSO)-induced HL-60 cells, i.e., differentiation into granulocytes, were pursued. HL-60 cells were treated with various concentrations of DMSO, and 1.3%(v/v) for 3 day incubation was chosen as the optimal condition for differentiation into granulocytes. The degree of differentiation was assayed in physiological and functional aspects in addition to morphological point. When treated with 1.3% DMSO for 3 days, HL-60 cells did not synthesize DNA materials beyond background level, and showed active chemotactic response to chemotactic peptide, formyl-methionyl-leucyl-phenylalanine(FMLP). Morphologically promyelocytes of high nuclear/cytoplasmic(N/C) ratio changed to granulocytes of relatively low N/C ratio. The relationships between HL-60 cells or DMSO-induced HL-60 cells and Toxoplasma were examined after stain with Giemsa and fluorescent dye (acridine orange). HS-60 cells did not show any sign of toxoplasmacidal activity but showed intracellular proliferation of Toxoplasma to form rosette for 72 hr co-culture. In contrast, DMSO-induced HL-60 cells phagocytosed Toxoplasma within 1 hr, and performed a process of intracellular digestion of Toxoplasma thereafter. With the above results, it is suggested that phagosome-lysosome fusion is one of the critical events for the parasitism by Toxoplasma or for susceptibility of host cells. The in vitro culture system of this study has offered a defined condition to study the protozoan parasite-host cell interactions.
parasitology-protozoa ; Toxoplasma gondii ; HL-60 cells ; dimethylsulfoxide ; in vitro culture ; dimethylsulfoxide

No abstract available.
Dislocations* ; Joints*

Segmental wiring to treat the unstable fracture and fracture-dislocation of the thoraco-lumbar spine is more effective method than Harrington instrumentation as primary procedure which afforded immediate rigid internal fixation of the spine and permitted mobilization without external support and immediate rehabilitation. A clinical study was made of twenty seven patients who were hospitalized and treated at the Department of Orthopaedic Surgery, Wonju Christian Hospital from Feb. 1979 to Apr. 1983. The following results were obtained: l. Of twenty seven patients, nine(33.3%) had a flexion rotation, eight(29.6%) had a shearing, eight (29. 6%) had a flexion compression and two(7.5%) had a vertical compression by Holdsworths mechanism of injury and by Pauls classification of fracture, thirteen(48. 1%) had a flexion distraction fracture, twelve(44. 4%) had a translation fracture and two(7. 5%,) had a unstable burst fracture. 2. Fifteen(55. 6%) had a complete neural deficit and five(18. 5%,) had an incomplete neural deficit. Six(22.2%) of the fifteen patients with complete neural deficit and one(3. 7%.) of the five patients with incomplete neural deficit showed slight neurological recovery, but eight(29.6%) gained complete recovery. 3. Correction of kyphotic deformity was average 12. 4 degree in Harrington instrumentation and average 18. 0 degree in segmental wiring, and during the follow-up periods, there was a final loss of 6. 3 degrees of kyphotic correction in Harrington instrumentation and 3. 0 degrees in segmental wiring. 4. In external support, fourteen(51.9%) had body jacket cast and four(14.8%) had back brace in Harrington instrumentation, but all patients except one brace had no external support in segmental wiring. 5. In complication, two hook dislocations and two pseudoarthroses were occurred in Harrington instrumentation, but any complication except only one cases of wound infection was not occurred in segmental wiring.
Braces ; Classification ; Clinical Study ; Congenital Abnormalities ; Dislocations ; Follow-Up Studies ; Gangwon-do ; Humans ; Methods ; Pseudarthrosis ; Rehabilitation ; Spine ; Wound Infection

Soft tissue coverage of heel defects has long been a difficult problem. In 1982, Iron reported eight cases of heel defects in children using an ipsilateral posterior thigh flap with use of the Hoff-man's skeletal fixation apparatus for immobilization. We report three cases of heel defects treatment in children using ipsilateral posterior thigh flap and detach flap in an average 13 days with aid of single photon emission computed tomography(SPECT) for evaluation of circulation status of flap.
Child ; Fracture Fixation ; Heel ; Humans ; Immobilization ; Iron ; Thigh ; Tomography, Emission-Computed, Single-Photon

Total hip replacement arthroplasty is one of the excellent treatment modalities of adult hip joint disease. But those who have severe dysplasia of the hip usually require augmentation of acetabular bone stock in order to carry out the total hip replacement arthroplasty and technical difficulties are often encountered in estabilishing an adequate acetabular bed for the prosthesis. From July 1988 to January 1990, we attempted to treat patients of dysplastic hip by bipolar endoprosthesis with acetabular bone graft using femoral head autograft in 8 patients and then reviewed these cases. The mean follow up period was 3 years ranging from 1 year and 10 months to 3 years and 10 months. The results obtained were as follows : 1. All the bone grafts were united well(average bone union time : 5.3 months). 2. According to Gerber and Harris' classification, there was no evidence of resorption of the graft in 1 case, and there were minor resorption in 5 cases, moderate resorption in 1 case, and major resorption in 1 case. 3. The average preoperative Harris hip score was 47.5 points and the average Harris hip score at last follow up was 79.0 points. 4. Because of the high rate of graft resorption and component migration, bipolar endoprosthesis with acetabular bone graft was not to be recommended as a reconstructive procedure for the dysplastic hip which have segmental bony deficiency in the acetabulum.
Acetabulum ; Adult ; Arthroplasty ; Arthroplasty, Replacement, Hip ; Autografts ; Classification ; Follow-Up Studies ; Head ; Hip Joint ; Hip ; Humans ; Prostheses and Implants ; Transplants

In the case of a soft tissue defect which requires thin & pliable tissues, the choice of donor site is limited due to flap bulkiness and donor site morbidity. To overcome these problems, a variety of perforator-based flaps such as paraspinous and parasacral perforator flap, deep inferior epigastric perforator flap, gluteal perforator flap, and thoracodorsal artery perforator flap have recently been introduced. We experienced 8 cases of soft tissue defects from December 1996 to March 1999 using the thoracodorsal artery perforator flap for reconstruction. We could elevate the cutaneous flap with preservation of the latissimus dorsi muscle flap only when it was based on one cutaneous perforator. Defatting procedure was possible for further thinning of skin flap. In one case, axillary defect after release of postburn scar contracture was repaired with island perforator flap and the other seven cases were repaired with free flap. The results were satisfactory. We believe the thoracodorsal artery perforator flap is useful for reconstruction of soft tissue defects which are large or under conditions requiring thin flap.
Arteries* ; Cicatrix ; Contracture ; Free Tissue Flaps ; Humans ; Perforator Flap ; Skin* ; Superficial Back Muscles ; Tissue Donors

No abstract available.
Aneurysm*

No abstract available.
Lung Neoplasms* ; Lung*