Spine
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Prospective, intraoperative force measurement in consecutive lengthening procedures in a series of growing-rod patients undergoing lengthening. ⋯ Distraction forces increase significantly after repeated lengthening of growing-rod constructs, and the length obtained at each procedure exhibits a decreasing trend.
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Case report. ⋯ This report describes a sudden and complete spinal cord lesion 1 week after spinal fusion in a child with PWS. Although such an event is often attributed to osteopenia, this was not proven in this case. To our knowledge, this is the first report to describe this event developing so soon and so suddenly after primary surgery. This case report confirms that spinal surgery in patients with PWS carries an increased risk of junctional hyperkyphosis and pullout of hardware.
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Immunohistological analysis in an injured intervertebral disk (IVD) model. ⋯ Disk injury in rats produces persistent increases in neuropeptides in DRGs and glia in the spinal cord, but only transient increases in inflammatory mediators in IVDs.
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Advancement in tissue engineering provides a promising approach to recover the functionality of the degenerated intervertebral disc. In our study, a nucleus pulposus (NP) cell-seeded collagen II/hyaluronan/chondroitin-6-sulfate (CII/HyA/CS) tri-copolymer construct was implanted into the disc space directly after nucleotomy in a rabbit model. ⋯ In our study, we had constructed rabbit NP cell-seeded CII/HyA/CS tri-copolymer implants in vitro. Immediately after nucleotomy of the recipient rabbit, we allografted the precultured cell-scaffold hybrids into the lacuna of the disc. Results documented survival of the allografted NP cells and extracellular matrix deposition, which finally resulted in maintenance of disc height and restoration of T2-weighted signal intensity on magnetic resonance imaging.
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Randomized Controlled Trial Comparative Study
A randomized trial comparing acupuncture and simulated acupuncture for subacute and chronic whiplash.
A randomized controlled trial with 3 and 6 months follow-up. ⋯ Real electroacupuncture was associated with a significant reduction in pain intensity over at least 6 months. This reduction was probably not clinically significant. There was no improvement in disability or quality of life.