[Assessment of femoral mechanical durability in the supratrochanteric line and brought together with various methods depending on the bone mineral density].
Femoral stiffness toward torsion and axial thrust of 21 femoral preparations after variety of osteosynthesis for supratrochanteric osteotomy is presented. All the femora were obtained at autopsy from patients 65 years old or older. Bone mineral density was evaluated radiographically and by dual energy X-ray absorptiometry. Osteotomy site was stabilized with screws, angular plates, Zespol hip fixator and Ender nails. No correlation between stiffness toward torsion and against axial load was found. The greatest torsional stiffness was found in non-osteoporotic preparations fixed with Ender nails, Zespol hip fixator and AO plate with compression screw. The last fixation proved most resistant against axial load.
Krzykawski
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R
Katedra i Klinika Ortopedii i Traumatologii, Pomorska Akademia Medyczna w Szczecinie.
Białecki
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P
D000368:Aged; D000369:Aged, 80 and over; D015519:Bone Density / Q000502:physiology*; D046508:Culture Techniques; D005260:Female; D005264:Femoral Fractures / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000379:methods*; D006620:Hip Fractures / Q000601:surgery*; D006801:Humans; D008297:Male; D010027:Osteotomy / Q000379:methods*