The Effect of Growth on Femoral Torsion

Rotational Deformities After Femoral Shaft Fractures in Childhood:A Retrospective Study 27–32 Years after the Accident

“…n Fol-TREATMENT low-up conservative operative incompletely specified in n >lo" >15" >20" n >lo" >15" >20" n >lo" >15" >20" years and diminished or arrested in the case of decreased anteversion. Animal experiments, too, have clearly demonstrated the influence of mechanical factors on femoral rotation (Appleton 1934, Arkin & Katz 1956, Bernbeck 1949, Le Damany 1903, Schneider 1963. Perhaps this explains why the high incidences of major differences in rotation are mainly reported in the published series with the briefest follow-ups (cf.…”

Spontaneous correction of femoral torsion: Diaphyseal osteotomies studied in kittens

“…When intramedullary nailing was used in dogs, two thirds of rotational osteotomies failed (Schneider 1963). Although some screws loosened in our experiment causing axis deviation of up to 30 degrees, less than 9 degrees of detorsion in the osteotomy was observed, except in the 4 kittens that were excluded (Table 1).…”

Torsional Deformities after Fractures of the Femoral Shaft in Childhood

“…- Schneider (1963) has shown in an experiment on dogs, that during growth arrest torsion cannot be effected in the growth plate involved, when subjected to torsional stress.…”

“…Most of the correction has been found to occur within the first few years of the follow-up period and before the ninth year of age. Schneider (1963) has performed unilateral transverse osteotomies of the femora in young dogs, followed by osteosynthesis with deliberate lateral or medial torsion of the distal fragment. Before the osteotomy he inserted two parallel pins in the shaft on either side of the osteotomy plane, enabling him to measure the size of torsional deformity after consolidation.…”