No effect of drains on the postoperative hematoma volume in hip replacement surgery: a randomized study using scintigraphy.

In a prospective randomized study we used erythrocyte scintigraphy to evaluate whether drainage reduced the hematoma volume after total hip arthroplasty. 12 patients were left without drains and 10 patients had two drains inserted, one below the fascia and one subcutaneously. We used tomographic registration (SPECT) to calculate the volume of the hematoma (erythrocytes) about 22 hours after surgery and found that drainage did not reduce the volume, but increased the need for blood transfusion.

Primary bone grafting does not improve the results in severely displaced distal radius fractures.

We prospectively randomised 45 patients ages 20-70 years with distal radius fractures of Older type III and IV to one of two treatment groups. One group was treated with closed reduction, primary bone grafting, and external fixation for 3 weeks, followed by a plaster cast that allowed volar flexion, for an additional 3 weeks. The other group was treated with closed reduction and external fixation for 6 weeks.

Lateral position reduces blood loss in hip replacement surgery: a prospective randomized study of 74 patients.

We performed a prospective randomized study of 74 patients undergoing hip replacement surgery and compared the perioperative blood loss in the lateral position with that in the supine position. The surgeons and surgical technique were the same in the two groups. The patients operated on in the lateral position had a significantly lower total blood loss, on average 201 ml less.

The Wagner revision prosthesis consistently restores femoral bone structure.

The short-term results are reported for 43 hip revision operations with the long-stemmed Wagner prosthesis. The patients were followed-up for an average of 25 months. The Charnley scores were; pain 5.

Surgical hemostasis after tourniquet release does not reduce blood loss in knee replacement. A prospective randomized study of 81 patients.

We studied the effect of timing of tourniquet release on blood loss in 81 patients (85 knees) who were operated on for total knee replacement. The patients were randomly allocated to one of two groups. In one group, the tourniquet was released for hemostasis before wound closure and in the other group, the tourniquet was not released until the wound was closed and a compressive dressing applied.

Diathermy knife does not reduce bleeding in surgery for primary hip arthroplasty. A prospective randomized study of 67 patients.

We evaluated bleeding in a prospective randomized study of 67 patients undergoing primary hip arthroplasty. In group A, all dissections were made with the diathermy knife and in group B, we used the scalpel. In both groups, bleeding points were coagulated with diathermy.

Acquisition of IgG serum antibodies against two Bordetella antigens (filamentous hemagglutinin and pertactin) in children with no symptoms of pertussis.

To study the specificity of serum antibodies against filamentous hemagglutinin (FHA) and pertactin for infection with Bordetella pertussis, we followed the acquisition of IgG serum antibodies against these 2 surface proteins of the organism in children who had been vaccinated with a monocomponent pertussis toxoid vaccine and who had experienced no symptoms of pertussis. Antibodies were estimated with enzyme-linked immunosorbent assay. In Part 1 of our study 5 consecutive samples obtained between 3 and 36 months of age from 71 children were available.

Response and decline of serum IgG antibodies to pertussis toxin, filamentous hemagglutinin and pertactin in children with pertussis.

The serum IgG antibody response and decrease to 3 Bordetella pertussis antigens was compared in children with pertussis. Sera were obtained at the first clinical visit and 1, 3 and 12 months later from 89 children with > or = 3 weeks of paroxysmal cough. IgG antibodies to pertussis toxin (PT), to filamentous hemagglutinin (FHA) and to pertactin were determined with ELISA.

Comparison of contrast-enhanced computed tomography and gadolinium-enhanced magnetic resonance imaging one year after lumbar discectomy.

Computed tomography (CT) and magnetic resonance imaging (MRI) with intravenous contrast were performed on a prospective group of 35 consecutive patients 1 year after surgery for disc herniation. The aim of the study was to compare the two methods in the analysis of postoperative changes. Computed tomography showed, compared with MRI, more extensive scar tissue in 12 patients and increased deformation of the dural sac in 5 patients.

Gadolinium-enhanced magnetic resonance imaging of 36 patients one year after lumbar disc resection.

A prospective study of 36 patients with radicular leg pain and lumbar herniation who underwent single-level disc resection is presented. Clinical follow-up was combined with a gadolinium-DPTA MRI examination, 1 year after surgery. Disc herniation was still present in eight patients and four of these did not have any significant radicular pain.

Safety, immunogenicity and an open, retrospective study of efficacy of a monocomponent pertussis toxoid vaccine in infants.

One hundred forty-five infants were vaccinated with 25 micrograms of pertussis toxoid (NICHD-Ptxd) at 3, 5 and 7 or at 3, 5 and 12 months of age. One month after the third vaccination all had high serum IgG and neutralizing antibodies (antitoxin) against pertussis toxin. Vaccination at 3, 5 and 12 months resulted in higher antibody titers than vaccination at 3, 5 and 7 months.

How common is whooping cough in a nonvaccinating country?

In Sweden general vaccination with a whole cell pertussis vaccine was recommended from 1953. In 1979 the recommendation was withdrawn because the Swedish-made vaccine had become ineffective. In order to determine the incidence of the disease in a nonvaccinating country, 400 children born in 1980 were randomly selected from the population register of Göteborg, Sweden.

Does microscopic removal of lumbar disc herniation lead to better results than the standard procedure? Results of a one-year randomized study.

Sixty patients with single-level lumbar disc herniation confirmed by computerized tomography were studied in a randomized prospective study. The aim was to see if there was any difference between the microscopic removal of a disc herniation and the standard procedure. All patients were operated on by the same surgeon by either method.

Cauda equina syndrome with normal lumbar myelography.

The consequences of signs of emergency compression of cauda equina in combination with a normal lumbar myelography are reported in 19 patients. Two of them had a tumor and a herniated disc, respectively, in the thoracic spine discovered by a second myelography. One patient was considered to have a hysterical paresis.

Scintigraphic findings in the rheumatoid knee joint.

An increased uptake of 99m-technetium methylenediphosphonate was found in 42 knees of 24 patients afflicted with rheumatoid arthritis. All the 23 knees which were painful and the 21 knees which had synovitis showed an increased concentration of isotope. Articular space narrowing was observed in 26 joints, all but one of which were subjected to increased isotopic accumulation and synovitis.

17-year follow-up of symptoms and signs in the knee joint in rheumatoid arthritis.

A population survey was carried out in Stockholm, Sweden, in 1967. In a sample of 15,268 individuals, 239 were found to have rheumatoid arthritis according to the New York diagnostic criteria. In 1983, i.

Gait in rheumatoid arthritis: an electrogoniometric investigation.

For the purpose of detecting early aberrations of gait in rheumatoid arthritis 17 women suffering from that disease were examined. They were all under 50 years of age and had an essentially normal range of motility in the hips, knees and ankles. Eleven healthy women walking at voluntary speed and 6 healthy women walking at the same slow speed as the RA patients were included as controls.

Radiological findings in the rheumatoid knee joint in a seventeen-year follow-up.

In 1967 a population survey of rheumatoid arthritis (RA) was carried out in Stockholm. In a sample of 15,268 subjects, 239 were found to have RA. In 1983, i.

A seventeen-year follow-up of a population survey of rheumatoid arthritis.

A population survey was carried out in Stockholm during the period 1965-67 for the purpose of determining the prevalence of rheumatoid arthritis (RA). 239 subjects with RA were found in a random sample of 15,268. In 1983, 17 years later, all the 127 persons still living could be traced, 109 of whom were re-examined.

Three-dimensional electrogoniometric gait recording.

Gait recordings of twenty healthy subjects were made on a treadmill and on level ground by means of a light-weight computerised electrogoniometer. The angular excursions in three planes were recorded simultaneously with regard to hip, knee and ankle joints in both legs. Determinations of the mean values and dispersions were then made.

Renal impairment after high doses of dicloxacillin-prophylaxis in joint replacement surgery.

The frequency of postoperative renal impairment after total hip and knee replacement was studied prospectively in 350 patients without signs of pre-existing renal disease. The first 278 patients were given dicloxacillin as prophylaxis against infection. In the remaining 72 patients dicloxacillin was excluded and gentamicin-impregnated cement was used as the only infection prophylaxis.