Chinese Med J Peking
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Chinese Med J Peking · May 1999
Comparative StudyMechanical and histological analysis of bone-pedicle screw interface in vivo: titanium versus stainless steel.
To investigate the differences in bone interface between titanium and stainless steel pedicle screws in the lumbar spine. ⋯ Pedicle screws made of titanium have a better bone-screw interface binding than screws made of stainless steel. Torsional tests are more informative for bone-screw interface study. Pull-out tests seem less valuable when comparing bone purchase of screws made from different materials.