Traditional pedicle screws versus cement-augmented pedicle screws in osteoporotic spine surgery：a comparative clinical study
FAN Yong
YANG Hong-jun
LEI Wei
WU Zi-xiang
YAN Ya-bo
ZHANG Yang
SANG Hong-xun
Abstract：Objective To analyze clinical applications of traditional pedicle screws and cement-augmented pedicle screws in osteoporotic spine surgery, and to evaluate the safety and feasibility of novel cement-augmented pedicle screws.Methods From January, 2009 to May 2013, 227 cases of thoracolumbar spine diseases combined with osteoporosis were enrolled and underwent posterior laminectomy decompression and lumbar interbody fusion. One hundred and fifty-one cases received traditional pedicle screws ( 86 males, 65 females, the mean age: 71.4± 6.7 years ). Seventy-six cases received cement-augmented pedicle screws ( 42 males, 34 females, the mean age: 73.1± 7.0 years ). Operation time and blood loss volume in 2 groups were recorded. Visual analogue scale ( VAS ), Oswestry disability index ( ODI ), rate of screw loosening and fusion conditions were compared 12 months postoperatively. Results In cement-augmented pedicle screw group, all patients achieved spinal fusion without any screw loosening or breakage. VAS score and ODI score were 2.0±0.5 and 24.0±4.5 12 months postoperatively, which were signiifcant superior to those in traditional pedicle screw group ( VAS score and ODI score: 1.7±0.5 and 21.7±5.0 ) with statistical signiifcance (P<0.05 ). In contrast, 26 traditional pedicle screws loosened with a loosening rate of 3.3%.Conclusions In osteoporotic spine operation, cement-augmented screws can provideexcellent ifxation stability as well as safety, with lower incidence rate of loosening and spinal canal leakage. It provides a novel ifxation method for osteoporotic spinal surgery.
Keywords：OsteoporosisLumbar vertebraeSpinal fusionCementoplastyInternal ifxators
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 655-660 )