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Biomedical subjects

D Keret

Publications and source records attributed to D Keret.

At least 37 records · Page 2Linked to original sources
PubMed1990

Heterotopic ossification in central nervous system-injured patients following closed nailing of femoral fractures.

Heterotopic ossification at the site of insertion of an intramedullary nail was observed in five central nervous system-injured patients with femoral fractures. Three of these patients experienced a reduction in the range of motion of the ipsilateral hip joint, which in two improved with physical therapy. Patients with central nervous system injury who have closed interlocking intramedullary nail fixation may be at increased risk of heterotopic ossification at the surgical site.

Adolescent↗
PubMed1989

Multiple osteoid osteomas of the fifth lumbar vertebra. A case report.

Two distinct osteoid osteomas occurred near each other in the same lumbar vertebra of an 18-year-old man. The tumors exhibited different levels of maturation in roentgenographic appearance and scintigraphic activity. Two surgical procedures were required to resect the lesions.

Adolescent↗
PubMed1988

Treatment of patellofemoral instability in Down's syndrome.

In a retrospective review, 16 patients with Down's syndrome with the chief complaint of patellofemoral joint dislocations or subluxations were studied. Twenty-six dislocatable or dislocated patellae were seen in these 16 patients. The degree of patellofemoral instability was not correlated with either the ambulatory status or the form of treatment (operative/nonoperative). An increasing degree of patellofemoral instability was correlated strongly with the presence of deformities. Nonoperative treatment either maintained or improved the ambulatory status in 67% of these knees with either fair or good ambulation, whereas 80% of the knees with poor ambulation did not improve. Operative treatment resulted in good ambulatory ability in 86% of the knees with fair or poor preoperative ambulatory status, but did not effectively correct deformities that subsequently resulted in degenerative arthritis.

Adolescent↗
PubMed1988

Pediatric update #4. Familial congenital short femur: intrauterine detection and follow-up by ultrasound. A case report.

A case of familial congenital simple short femur is described in an 8-year-old brother and an 8-month-old sister, associated with other congenital defects in the lower extremities. In the case of the sister, early intrauterine detection and follow-up were possible. This early intrauterine detection by means of ultrasound may enable us to calculate the ratio between the length of the short femur and that of the normal one and to plan for corrective surgery at a later date.

Child↗
PubMed1987

Evaluation of a uniform operative technique to treat syndactyly.

Twenty-two patients with upper extremity syndactyly (58 webs) have been treated in the last decade (1976 to 1985) by one hand surgeon using one technique. Nineteen patients had syndrome complexes or other associated anomalies that made treatment more difficult. The postoperative follow-up averaged 4 years. The rate of complications that necessitated repeat operations (5% of the treated webs) was relatively low in comparison with those in other series. We attribute this to better timing of the procedure and progressive experience gained by one surgeon using the same procedure.

Child↗
PubMed1987

Double fingernails on the small fingers.

This report describes the unusual presence of dorsal skin and a fingernail on the palmar surface of both small fingers, with a normal nail on the dorsal surface. This child has a normal karyotype. There has been one previous report in the literature of a similar anomaly associated with a chromosome 6 abnormality.

Chromosomes, Human, Pair 6↗
PubMed1986

Effects of mechanical and osmotic pressure on the rate of glycosaminoglycan synthesis in the human adult femoral head cartilage: an in vitro study.

We studied the effects of mechanical and osmotic compression on sulphate incorporation into glycosaminoglycans of human femoral head cartilage. We found that both mechanical and osmotic compression produce the same lowering of sulphate uptake relative to uncompressed controls. It appears that this effect is not associated with changes in solute transport or changes in solute concentration in the matrix, but is due, in part at least, to an increased osmotic pressure acting on the chondrocytes. A second mechanism of action might be involved directly through the increased proteoglycan concentration in the pericellular environment, resulting from a reduction in the water content. We also found that glycosaminoglycan synthesis returned to its control level when the conditions prevailing in the matrix, in the absence of pressure or added solute, were restored.

Adult↗
PubMed1985

Fracture of the transverse process of the fifth lumbar vertebra.

Fracture of the transverse process of the fifth lumbar vertebra is caused by traction through the iliolumbar ligament by the vertically and proximally or medially dislocated hemipelvis. This fracture is therefore associated with the vertical shearing force of Malgaigne's fracture-dislocation of the pelvis or the lateral crush fracture-dislocation of the pelvis. In the absence of evidence on a radiograph of a fracture through the sacroiliac area or dislocation or subluxation of the sacroiliac joint, the fracture of the transverse process of the fifth lumbar vertebra may be the only radiological evidence for posterior instability of the ipsilateral hemipelvis.

Adult↗
PubMed1984

The Ale-Calo syndrome in monozygotic twins associated with bilateral cryptorchidism--case report.

A case report of identical male twins with the clinical and radiological features of the rare Ale - Calo or M.E.M.R. (Multiple Exostoses - Mental Retardation) or Langer-Giedion's syndrome - is presented. The additional finding of bilateral cryptorchidism in our case is also very rare in twins, and has hitherto not been described in association with the Ale - Calo syndrome. Differential diagnosis is reviewed briefly.

Child↗
PubMed1984

Coxa plana--the fate of the physis.

Eighty patients who had unilateral coxa plana and who had been treated conservatively were followed to a mean age of sixteen and one-quarter years, and their cases were reviewed for radiographic evidence of a disturbance of the femoral capital growth plate. This physeal involvement was inferred by the presence of one or more of five findings: premature physeal closure, overgrowth of the greater trochanter, change in physeal shape, lateral protrusion of the capital nucleus, and medial bowing of the femoral neck. Premature physeal closure, which was more common in the girls than in the boys, occurred in 25 per cent of the affected femoral heads, and 90 per cent of the patients showed some interference with normal physeal growth in the affected femoral head. A direct correlation was found between the severity of the physeal involvement and the ultimate deformity of the femoral head. The possible causes of interference with physeal growth and damage are discussed.

Bone Diseases, Developmental↗