Spine
-
A case report. ⋯ This case supports the concept of the existence and clinical relevance of the fourth column of the thoracic spine, and its role in giving added spinal stability.
-
Case Reports
Iatrogenic disability and narcotics addiction after lumbar fusion in a worker's compensation claimant.
Case report. ⋯ Patients with chronic low back pain are at risk for receiving ineffective and potentially harmful treatment. A focus on restoring function instead of complete pain relief may lead to better outcomes in these patients.
-
Retrospective cohort study. ⋯ rhBMP-2 may be an appropriate alternative to autogenous bone graft in both single- and multilevel revision PLF, whereas BMAA may be appropriate as a substitute in single-level revision PLF. The use of BMAA in single-level revisions may be a more cost-effective option than rhBMP-2.
-
Axial loading, rotation, and bending were applied to human cadaveric lumbar segments to investigate the changes in disc mechanics with denucleation and incremental delivery of a novel hydrogel nucleus replacement. ⋯ Compliant nucleus replacement using inflation pressures of 20 to 40 psi resulted in restoration of intact mechanics. Mechanical function was dependent on the volume of implant injected into the nucleus cavity.
-
Randomized Controlled Trial Comparative Study
Lumbar microdiscectomy with spinal anesthesia: comparison of prone and knee-chest positions in means of hemodynamic and respiratory function.
Prospective clinical study to compare the physiologic changes in lumbar disc surgery regarding to positions. ⋯ In conclusion, spinal anesthesia is appropriate for lumbar disc surgery with respect to the hemodynamic parameters in both prone and knee-chest positions, however, in terms of pulmonary functions, the knee-chest position can cause a restrictive effect. Therefore this position should be used cautiously in higher-risk patients.