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S Anda

Publications and source records attributed to S Anda.

At least 19 recordsLinked to original sources
PubMed1991

[Atlanto-axial rotatory fixation. Current diagnosis in torticollis].

Atlantoaxial rotatory fixation is a disorder which must be considered in persistent torticollis. The disorder occurs mainly in children and young adults. The usual etiological factors are traumas or infections of the upper respiratory tract, but the onset may also be spontaneous. The pathogenesis of the fixation is poorly understood. We describe three patients with atlantoaxial rotatory fixation and demonstrate the usefulness of computerized tomography in the diagnosis of this condition. We recommend a posterior atlantoaxial fusion if conservative treatment fails to reduce the rotatory fixation.

Adult↗
PubMed1991

Computed tomography measurements of the acetabulum in adult dysplastic hips: which level is appropriate?

A study has been performed to evaluate whether one or several levels are needed with computed tomography (CT) study to provide sufficient information regarding anteversion and acetabular support to the femoral head. A total of 23 hips in 14 adults with uni- or bilateral congenital hip dysplasia (center-edge angle less than 20 degrees) were assessed by obtaining 5-mm contiguous CT slices and performing acetabular measurements at four levels. Both anterior and posterior acetabular supports as quantified by the anterior and posterior acetabular sector angles were significantly lower than normal at all levels. The sector angles increased in the proximal cuts, whereas the acetabular anteversion increased caudally. Because no important additional information was gained by measuring at different levels, we conclude that CT study at one level is sufficient for acetabular measurements and suggest that the slice through the center of the femoral head is the most appropriate one.

Acetabulum↗
PubMed1991

Vascular complications of lumbar disc surgery. Case report.

Four patients were successfully treated for vascular complications associated with lumbar disc surgery, one as an emergency case and three from 1 to 3 months postoperatively. Acute complications are often identified by severe bleeding. Knowledge of the anatomy is essential for appropriate surgical repair, which may consist of patch-graft angioplasty or graft interposition. Treatment of late complications (usually arteriovenous fistula or false aneurysm) is often impeded by adhesions. Fistula repair is performed from inside the artery. Precautions against vascular complications during lumbar disc surgery are discussed.

Acute Disease↗
PubMed1991

Anterior perforations in lumbar discectomies. A report of four cases of vascular complications and a CT study of the prevertebral lumbar anatomy.

Four cases of vascular complications to anterior perforations during discectomy prompted a CT study to measure lumbar disc diameters and to evaluate the prevertebral anatomy. Fifty young adults who had been referred for low-back pain and/or sciatica but had not undergone operation were included. In five additional patients, prone versus supine CT examinations were compared. Six typical configurations of the vascular anatomy could be classified to explain the type of vascular complications occurring at the L3-4 and L4-L5 disc levels. The sagittal diameter of the three lowest lumbar discs varied from 33 to 56 mm, indicating the importance of this parameter as an intraoperative guideline for the spine surgeon. Air-filled intestines were observed anterior to the L5-S1 disc predominantly in the prone position. The possible relationship between this finding and postoperative discitis is discussed.

Adult↗
PubMed1990

[Outpatient angiography].

During the last few years it has been generally accepted that angiography can be performed on an outpatient basis. In 1988 and 1989, 130 angiographies were done in this manner at the Regional Hospital in Trondheim. All the examinations were carried out by conventional transfemoral technique. After the procedure the patients were observed for six hours in the surgical ward of the hospital before going home. 25 patients had to be hospitalized after examination. Only in two cases this was due to minor complications of the angiography. None of the patients experienced complications after discharge from hospital. The conclusion is that outpatient angiography must be considered a safe and cost-effective procedure.

Adult↗
PubMed1990

Orbital CT in the management of blow-out fractures of the orbital floor.

The CT-examinations of 15 patients with blow-out fractures of the orbital floor were reviewed. All patients were examined with coronal/semicoronal CT-imaging, and 7 patients also were evaluated with semisagittal projections. Only in one case the semisagittal images gave more information than coronal sections when using the classification of Gilbard et al. (1985) of the inferior rectus muscle/fracture relationship. The anterior and posterior fracture margins were better delineated with semisagittal imaging. Two patients exhibiting positive traction tests with hooked, and not entrapped muscles on CT still had diplopia 5 1/2 and 12 weeks after the trauma.

Adolescent↗
PubMed1990

Osteotomy for femoral anteversion. A prospective 9-year study of 52 children.

Fifty-two children with increased femoral anteversion had bilateral derotational subtrochanteric osteotomies at a mean age of 7 years. They were followed prospectively until at least 15 years of age; the mean observation time was 9 years. They were a subset of 95 children whose 2-year results were reported in 1989. The mean increase of femoral anteversion after the osteotomy was 6 degrees (0.7 degrees per year) and of the neck-shaft angle 5 degrees. The CE angle did not increase. Although we at present practice a more restrictive attitude towards operation of increased femoral anteversion, our study showed that a derotational osteotomy is effective in eliminating the intoeing gait and associated complaints, and the hip angles change only moderately during the remaining period of growth.

Adolescent↗
PubMed1990

Femoral anteversion in adolescents and adults measured by ultrasound.

Femoral anteversion (AV) was determined by ultrasound in 40 adolescent and adult patients with rotational disorders of the femur, and the results were compared with AV measurements by biplanar roentgenography. With the patients supine, their knees flexed 90 degrees, and their lower legs strapped in the vertical position, one scan only of the proximal femur was needed to measure the anteversion by ultrasound. The transducer was tilted until the desired measuring line appeared horizontal on the monitor screen. The angle of tilt of the transducer, which represented the AV angle, was measured with an attached clinometer. The correlation between ultrasound and roentgenographic AV angles was high, indicating that reliable results were obtained by ultrasound. The preferred reference line was the head-trochanter tangent, which is recommended for clinical use. Consistently greater AV values were measured by ultrasound than by roentgenography. Thus, 10 degrees should be subtracted from the ultrasound values in order to obtain the real AV angles. One of the benefits of ultrasound is the elimination of radiation hazards to the patients. Ultrasound is recommended as a screening technique for patients with rotational disorders of the femur.

Adolescent↗
PubMed1990

Pelvic inclination and spatial orientation of the acetabulum. A radiographic, computed tomographic and clinical investigation.

In a study of 40 young adults the pelvic inclination measured by a specially constructed inclinometer was found to be the same in the supine and standing positions when related to the horizontal and frontal planes, respectively. Consequently supine CT measurements of the hip are also representative of corresponding standing angles. The variations of the acetabular anterversion and the sector angles on CT of the hips in 5 adult corpses were measured by angulating the gantry in increments of 5 degrees to +/- 20 degrees. An approximate linear relationship was found for all parameters, the acetabular anteversion varied 0.5 degree with 1 degree pelvic rotation, and the sector angles 0.7 degree. A theoretic mathematical model for the variation of the acetabular anteversion outside the measured range employing a sine curve is introduced.

Acetabulum↗
PubMed1989

[Surgical treatment of renal artery stenosis].

Renal artery stenosis may be the cause of hypertension and reduced renal function. The aim of surgical treatment is to eliminate or reduce the hypertension and to preserve or improve kidney function. At our hospital the standard surgical procedure is aortorenal bypass. We present the results of this procedure in the treatment of 23 patients (27 bypasses) during a five-year period. During the same periode nine patients were treated with percutaneous transluminal renal angioplasty. Arterial reconstruction of the renal artery is a relatively simple and cost-effective treatment. Furthermore, the rate of postoperative complications is low.

Aged↗
PubMed1989

[Orbital blow-out fractures. Therapeutic results].

37 patients treated surgically for orbital blow-out fractures were reviewed retrospectively. 29 had diplopia before and four after operation. The diplopia was present only in extreme gaze positions and was not troublesome to the patients. Enophthalmus was present in 19 patients preoperatively and in six postoperatively. Of six patients treated conservatively one developed a moderate enophthalmus. There were no significant postoperative complications.

Adolescent↗
PubMed1989

[Idiopathic benign non-infectious segmental vertebral sclerosis].

Idiopathic, benign, non-infectious, segmental, vertebral sclerosis is a self-limiting condition, which must be differentiated primarily from infectious spondylo-discitis and sclerosing vertebral metastases. The typical patient is a middle-aged, parous women with pain in the lower back region. Radiologically there is a characteristic half-dome shaped supradiscal sclerosis in the anterior and middle part of the affected vertebral body, which is always of normal height and there is never an abnormal paravertebral soft tissue mass. The erythrocyte sedimentation rate is normal. It is important to recognize this condition in order to avoid unnecessary examinations.

Adult↗
PubMed1989

Dental and jaw changes in primary hyperoxaluria.

A case of teeth and jaw changes in primary hyperoxaluria is described. The patient, a 25-yr-old man, was treated by kidney transplantation twice, and finally by combined liver and kidney transplantation. The teeth and jaw changes consisted of deposition of oxalate crystals in the gingiva, in the pulp and in the vicinity of bone and dentin. The resorption of bone and dentin was extensive.

Adult↗
PubMed1989

Regression of femoral anteversion. A prospective study of intoeing children.

To study the spontaneous regression of femoral anteversion, 30 children referred to the outpatient clinic for intoeing were followed until at least 15 years of age. The mean observation time was 9 (7-12) years, and all the children were examined three times during the growth period. The mean radiographic angle at the first examination was 42 degrees, at the second examination 36 degrees, and at the last examination 28 degrees. The mean decrease of the AV angle per year was 1.5 degrees, with a considerable range (0.2-3.1 degrees). The mean internal rotation of the hip decreased from 74 degrees to 53 degrees during the observation period, and the external rotation increased from 19 degrees to 37 degrees. While all 30 children had an intoeing gait at the first examination, this disappeared in all but 5 children.

Bone Diseases, Developmental↗
PubMed1989

Osteotomy for femoral anteversion. Complications in 95 children.

Totally, 95 children with increased femoral anteversion had derotational substrochanteric osteotomy with plate fixation. The mean anteversion angle was reduced from 48 degrees to 4 degrees, internal hip rotation from 81 degrees to 42 degrees, and external rotation increased from 9 degrees to 48 degrees. All the osteotomies healed, but serious complications occurred in 13 of the 95 patients. Because of the risk for complications and the trend towards spontaneous regression of femoral anteversion with age, we recommend a much more conservative attitude with regard to operative treatment.

Adolescent↗