Spine
-
Retrospective cohort. ⋯ Primary or revision ACDF procedures did not significantly differ in depressive symptoms through 1-year. Primary ACDF patients significantly improved in all PROMs through all timepoints, while revision patients had limited improvement in PROMs. Preoperative depression may have a stronger association on postoperative outcomes for primary procedures.Level of Evidence: 3.
-
Cross-sectional study. ⋯ Expenditures have increased over time in adults with SRDs. PS is significantly associated with expenditures after controlling for predisposing and enabling factors, but not significant after controlling for need factors. Need factors appear to explain the relationship between lower levels of PS and higher HCE in adults with SRDs.Level of Evidence: 2.
-
Micro-computed tomography- (micro-CT-) based finite element analysis of cadaveric human lumbar vertebrae virtually implanted with total disc arthroplasty (TDA) implants. ⋯ Typically-sized TDA implants disproportionately increase the bone-tissue stress in more porous vertebrae; this affect is accentuated when the implant impinges in sagittal bending.Level of Evidence: N/A.
-
Analytical biomechanical study using a finite-element (FE) model. ⋯ Using FEM, we observed that the paraspinal muscle volume decreases pressure exerted on the lumbar vertebral column. Based on these results, we believe that exercising to increase paraspinal muscle volume would be helpful for spinal pain management and preventing lumbar spine degeneration.Level of Evidence: N/A.