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Biomedical subjects

S Olerud

Publications and source records attributed to S Olerud.

At least 19 recordsLinked to original sources
PubMed1990

[Leg lengthening--historical review and current techniques].

The techniques earlier used for leg lengthening were notorious for their complications, and as late as the 1960s some authorities would not consider lengthening unless amputation was the alternative. The method introduced by Wagner in the 60s had the advantage of a stable external fixation, permitting the patients to be mobilized. The drawback was that at least three operations were needed: external fixation and osteotomy, bone grafting and internal fixation, and, finally, removal of the plate. With the Ilizarov technique, no bone grafting is needed and bone lengthening up to at least 15 cm is possible. The main problems in leg lengthening are related to joints and soft tissue. Every surgeon performing leg lengthenings should be familiar with the possible problems and complications. He must establish very good relations with the patient and be ready to spend a considerable amount of time with the patient during the process.

Bone Lengthening↗
PubMed1990

Anterior stabilization of pathologic dens fractures.

By an anterior approach, six pathologic dens fractures were stabilized with screws and methyl methacrylate cement. All the patients had immediate pain relief and could be mobilized without external support. Using the anterior approach, the tumor can be removed and the instability neutralized at the site of the lesion.

Adult↗
PubMed1990

[Reconstructive surgery following malunion of intra-articular fractures of the knee joint].

The anatomical reduction of intra-articular knee fractures is a major challenge if a satisfying functional result and limited post-traumatic arthrosis is to be obtained. In some cases even after malunion a good result can be achieved. In this paper, our experience with reconstructive surgery is described after a description of possible extended approaches to the knee and osteotomy techniques and advanced osteosynthesis. Four illustrated cases of distal femoral and three of proximal tibial reconstruction are discussed. In all patients the primary treatment led to malunion of the comminuted fractures. The only complication seen was the breaking of an angulated plate at the distal femur and even here, after re-osteosynthesis, normal healing occurred. In all cases a satisfactory knee motion was achieved: 90 degrees of flexion in the femoral group and 120 degrees in the tibial group was reached without any extension deficit. Alignment and axial correction were optimal in all patients. From these results we believe that reconstructive surgery can ba advocated for malunited knee fractures and that it represents a primary alternative to joint replacement surgery and arthrodesis.

Adolescent↗
PubMed1988

Transpedicular segmental fixation: description of a new procedure.

The treatment of unstable fractures of thoracolumbar vertebrae is a controversial issue in the orthopedic community. The various methods employed for operative stabilization of these injuries have to date been found to have major disadvantages. A new therapeutic principle and a new device for stable internal fixation are presented.

Adult↗
PubMed1986

External fixation as a test for instability after spinal fusion L 4-S 1. A case report.

A case presented with severe backache after fusion of the L 4-S 1 levels; the patient became immediately painfree after external transpedicular fixation between L 4 and the sacrum. The device was kept in place for 10 weeks. After an additional 4 weeks the patient was able to return to his work after several years of sick-leave. The case indicates instability as a cause of backache. Painful nonunion of a fusion can be present in spite of signs of healing on radiographs and CT-scan. External transpedicular fixation may be a good tool in assessing instability of the lower lumbar spine.

Adult↗
PubMed1986

Spontaneous effect of increased stability of the lower lumbar spine in cases of severe chronic back pain. The answer of an external transpeduncular fixation test.

Eighteen patients with severe low-back pain of long duration were externally stabilized over selected segments of the lumbar spine to evaluate the pain relieving effect of increased stability. Five millimeter Schantz screws were driven into the vertebral body transpeduncularly by a closed technique using an image intensifier. A modified Hoffmann fixation device with possibilities to compress and distract was used for external stabilization. The results were recorded by means of pain area sketches and pain lines. All but one patient experienced remarkable relief of low-back pain and often of pain radiating into the lower extremities. No serious complications were seen. Of eight patients with residual severe pain after fusions, five were considered healed using radiologic techniques and three were improved by external stabilization. This test could be used to identify candidates, select levels for lumbar fusion, and evaluate the stability of previous fusions.

Adult↗
PubMed1979

Internal fixation of fractures of the neck of the femur using von Bahr screws and allowing immediated weight bearing: a prospective clinical study.

This article presents the results of von Bahr screw fixation in 103 patients, allowing immediate weight bearing. After a follow-up period of 1 year, a failure rate of 18% was recorded. Analysis of the series shows that the failures are due to inadequate reduction of the displacement during operation, especially when the head is in varus, and to bad positions of the screw. The high failure rate was not related to the initial displacement of the fracture.

Adolescent↗
PubMed1978

[Ender nailing].

Explore the source record for details and available documents.

Bone Nails↗
PubMed1977

Ipsilateral fracture of the femur and tibia.

Thirty-two cases of simultaneous ipsilateral femoral and tibial fractures in thirty-one patients were treated by rigid internal or pin fixation of both fractures in fourteen cases, by rigid internal or pin fixation of one fracture in three, and by conservative management or non-rigid internal fixation in fifteen. Rigid internal or pin fixation of both fractures resulted in a lower incidence of complications and shorter duration of hospitalization and time to healing. An initially active surgical approach also produced considerably better functional end results: twelve of fourteen patients so treated resumed their former occupations, compared with four of thirteen patients treated conservatively.

Femoral Fractures↗