Biomedical subjects

L O Sjöstrand

Publications and source records attributed to L O Sjöstrand.

7 recordsLinked to original sources

PubMed1982

85Sr-scintimetry in femoral neck fracture.

In 40 patients with fracture of the femoral neck 85Sr scintimetry was performed at the time of nailing and 4 months postoperatively. The fractures were radiographed repeatedly for 5 years; thirteen fractures healed without complications, 22 developed necrosis of the femoral head, and 5 pseudarthrosis. The early isotope measurement did not distinguish between normal and necrosis cases even with detailed analysis. The 4 months activities were high in osteonecrosis and low pseudarthrosis. The latter observation is interpreted as evidence that non-union of a femoral neck fracture is due to severe permanent vascular damage.

Adult↗

PubMed1977

Reimplantation of a traumatically expelled tibial diaphysis.

The successful reimplantation and healing of a traumatically expelled tibial diaphysis in a 16-year-old boy is presented. Radionuclide scintimetry with 87mSr and 85Sr during the following months showed a pronounced diaphyseal activity corresponding to abundant periosteal bone formation around the dead cortical bone, increased activities over the fractures and the growth plates. Microscopical investigation after tetracycline labelling about 1 year after the accident showed a pronounced osteoblastic and osteoclastic activity in the superficial part of the cortex of the reimplanted bone. The endosteal part consisted of necrotic bone and was only to a small extent replaced by new bone. The uncomplicated healing process observed in this case can be attributed to the youth of the patient, the absence of infection and, most important of all, the preservation of the periosteum and its blood supply.

Adolescent↗

PubMed1975