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Biomedical subjects

S Kontos

Publications and source records attributed to S Kontos.

6 recordsLinked to original sources
PubMed1998

The nature of teacher talk in early childhood classrooms and its relationship to children's play with objects and peers.

The nature of teacher talk in early childhood classrooms as well as how such talk is related to children's level of play with objects and peers during free play was examined. The purpose of the study was to determine what levels of teacher talk were related to child functioning. Eighty-nine children (42 girls, 47 boys; age range = 31 through 63 months) enrolled in three early childhood programs participated in the study. Results demonstrated that when teachers are within 3 ft of a child, they do not talk to that child 81% of the time and they talk at high levels 18% of the time. Although previous research suggests that high-level teacher talk should be related to high-level play with objects, the results indicated that high-level teacher talk was related to lower levels of play with objects and unrelated to play with peers on the part of the children.

Analysis of Variance↗
PubMed1996

Treatment of high-energy tibial plateau fractures by the Ilizarov circular fixator.

We treated 24 patients with high-energy fractures of the tibial plateau by the Ilizarov fixator and transfixion wires. Eleven fractures were open, and 20 patients had complex injuries. Twelve were treated by ligamentotaxis and percutaneous fixation, seven by limited open reduction and five by extensive open reduction. All were followed for at least 24 months. All the fractures united, with an average time to healing of 14.4 weeks. Thirteen patients achieved full extension and 13 more than 110 degrees of flexion. Twenty-two knees were stable. Fifteen patients walked normally and the rest with only a slight limp. All but two knees had an articular step-off of less than 4 mm and all had normal axial alignment except two. There were no cases of postoperative skin infection, osteomyelitis or septic arthritis. Ilizarov circular fixation is an ideal method of treatment for these fractures when extensive dissection and internal fixation are contraindicated due to trauma to the soft tissue, deficiency of bone stock, and bony comminution.

Accidental Falls↗
PubMed1995

Use of the Ilizarov technique for treatment of non-union of the tibia associated with infection.

Non-union of the tibia associated with infection was treated with radical resection of the necrotic bone and distraction osteogenesis in twenty-eight patients who were eighteen to seventy-four years old. Non-union, infection, shortening, deformity, and osteoporosis were all addressed simultaneously. All patients had either one-segment or two-segment lengthening of bone with a technique of bone transport in which a bone fragment is moved toward the site of non-union, leaving a defect that is bridged by distraction osteogenesis. The size of the bone defect that was bridged averaged six centimeters (range, two to thirteen centimeters). The infection was eradicated in all patients before the fixator was removed. The mean duration of treatment was ten months. The mean time to union, calculated from the day that the intercalary segment came into contact with the target segment, was six months. The mean duration of follow-up was thirty-nine months. The deformity and the inequality of the lengths of the legs were corrected successfully--to less than 7 degrees and to less than 2.5 centimeters, respectively--in fourteen of the twenty-eight patients. In these fourteen patients, the bone result--determined according to the criteria of union, healing of the infection, status of the deformity, and amount of residual shortening--was considered excellent. Of the fourteen remaining patients, eight had a good bone result; one, a fair result; and five, a poor result. The functional result was excellent in seven patients, good in eleven, fair in four, and poor in five. One patient had an amputation. Three patients (11 per cent) had a problem with union that was treated with augmentation with a bone graft. One patient, who had sustained a refracture, had an amputation. Twenty-five patients (89 per cent) had a total of seventy-one minor or major complications, a rate of 2.5 complications per patient.

Adolescent↗