Spine
-
Retrospective observational cohort study. ⋯ We propose a classification for the severity of ATCSCI based on DTI and DTT that may explain why some patients with ASIA A recover, whereas others do not.Level of Evidence: 4.
-
Comparative Study
PLF vs PLIF and the fate of L5-S1: Analysis of Operative Nonunion Rates among 3065 Patients with Lumbar Fusions from a Regional Spine Registry.
A retrospective cohort study with chart review. ⋯ In a large cohort of patients with >4 years of follow-up, we found no difference in operative nonunions between PLF and PLIF except for constructs that included L5-S1 in which the risk of nonunion was limited to PLF patients.Level of Evidence: 3.
-
Multicenter Study Comparative Study
Comparison of 2-level cervical disc replacement vs. 2-level anterior cervical discectomy and fusion in the outpatient setting.
Retrospective cohort study. ⋯ To our knowledge, this is the largest multicenter study examining the safety of two-level outpatient CDR procedures. Outpatient two-level CDR was associated with similarly safe outcomes when compared to inpatient two-level CDR and outpatient two-level ACDF. This suggests that two-level CDR can be performed safely in the outpatient setting.Level of Evidence: 3.
-
Comparative Study
Cervical Alignment Following Posterior Cervical Fusion Surgery: Cervical Pedicle Screw Versus Lateral Mass Screw Fixation.
Retrospective comparative study. ⋯ The present study is the first radiologic comparison of LMS and CPS fixation after posterior-only fusion surgery. CPS resulted in more reliable and well-preserved SA correction, whereas CL and SVA did not differ between the two groups over time due to loss of correction.Level of Evidence: 4.
-
Comparative Study Observational Study
Do Markers of Inflammation and/or Muscle Regeneration in Lumbar Multifidus Muscle and Fat Differ between Individuals with Good or Poor Outcome Following Microdiscectomy for Lumbar Disc Herniation?
Observational study. ⋯ Results show a relationship between impaired muscle regeneration profile in multifidus muscle and poor outcome following microdiscectomy for LDH. Inflammatory dysregulation in subcutaneous fat overlying the back region might predict poor surgical outcome.Level of Evidence: 4.