Kim(21) (2019) |
503 |
Comparative study of HU vs. DEXA. |
Significant correlation between HU and BMD. HU is considered a predictive factor for osteoporosis. |
R |
St Jeor17 (2020))
|
140 |
Comparative study under evaluation of BMD, HU, and DEXA to determine complications associated with osteoporosis |
HU is a predictive factor of complications of osteoporosis. |
R |
Ullrich 1818 Matsukawa K, Abe Y, Yanai Y, Yato Y. Regional Hounsfield unit measurement of screw trajectory for predicting pedicle screw fixation using cortical bone trajectory: a retrospective cohort study. Acta Neurochir (Wien). 2018;160(2):405-11. https://doi.org/10.1007/s00701-017-3424-5. https://doi.org/10.1007/s00701-017-3424-...
(2018) |
81 |
Evaluate the HUs for possible determination of the risk of subsidence of the boxes. |
HU measurement is recommended in pre-surgical planning. |
R |
St Jeor 1919 Berger-Groch J, Thiesen DM, Ntalos D, Grossterlinden LG, Hesse E, Fensky F, et al. Determination of bone density in patients with sacral fractures via CT scan. Orthop Traumatol Surg Res. 2018;104(7):1037-41. https://doi.org/10.1016/j.otsr.2018.07.022. https://doi.org/10.1016/j.otsr.2018.07.0...
(2020) |
244 |
Compare DEXA and HU, a study in patients with degenerative spinal pathology. |
Extension of the concept of spinal osteoporosis for patients with poor bone quality. |
R |
Matsukawa 2020 Bredow J, Boese CK, Werner CML, Siewe J, Löher L, Zarghooni K, et al. Predictive validity of preoperative CT scans and the risk of pedicle screw loosening in spinal surgery. Arch Orthop Trauma Surg. 2016;136(8):1063-7. https://doi.org/10.1007/s00402-016-2487-8. https://doi.org/10.1007/s00402-016-2487-...
(2018) |
92 |
Demonstrate the usefulness of HU in the screw path to predict the primary and long-term fixing force of the pedicle screws. |
The regional HU values of the screw path could strongly predict both primary and long-term live screw fixation. |
R |
Berger-Groch2121 Xu F, Zou D, Li W, Sun Z, Jiang S, Zhou S, et al. Hounsfield units of the vertebral body and pedicle as predictors of pedicle screw loosening after degenerative lumbar spine surgery. Neurosurg Focus. 2020;49(2):E10. https://doi.org/10.3171/2020.5.FOCUS20249. https://doi.org/10.3171/2020.5.FOCUS2024...
(2018) |
531 |
Collect information on BMD by HT in CT of patients with sacral fractures. |
HU is a simple procedure to further assess bone quality in patients with pelvic ring fractures. |
R |
Bredow 2222 Ponnusamy KE, Iyer S, Gupta G, Khanna AJ. Instrumentation of the osteoporotic spine: biomechanical and clinical considerations. Spine J. 2011;11(1):54-63. https://doi.org/10.1016/j.spinee.2010.09.024. https://doi.org/10.1016/j.spinee.2010.09...
(2016) |
365 |
UH was evaluated in 365 patients to determine the BMD of each vertebral body. |
The determination of bone density by pre-operative computed tomography can predict the risk of loosening the screws and inform the decision to use magnification cement to reduce the incidence of loosening the screws. |
R |
Xu 2323 Duan PG, Mummaneni PV, Rivera J, Guinn JMV, Wang M, Xi Z, et al. The association between lower Hounsfield units of the upper instrumented vertebra and proximal junctional kyphosis in adult spinal deformity surgery with a minimum 2-year follow-up. Neurosurg Focus. 2020;49(2):E7. https://doi.org/10.3171/2020.5.FOCUS20192. https://doi.org/10.3171/2020.5.FOCUS2019...
(2020) |
143 |
UH, values of the vertebral body and pedicle as predictors of post-surgical pedicular screw loosening. |
The HUs of the vertebral body alone are not enough to accurately assess the risk of loosening the pedicle screw. |
R |
Zou D 88 Chin DK, Park JY, Yoon YS, Kuh SU, Jin BH, Kim KS, et al. Prevalence of osteoporosis in patients requiring spine surgery: incidence and significance of osteoporosis in spine disease. Osteoporos Int. 2007;18(9):1219-24. https://doi.org/10.1007/s00198-007-0370-8. https://doi.org/10.1007/s00198-007-0370-...
(2020) |
503 |
The loosening rate of the pedicular screw at 12 months of follow-up was 30.0%. |
The HU value measured on CT was an independent predictor of pedicular screw loosening; low HU values correlate significantly with an increased risk of screw loosening. |
R |