European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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Significant progress has been seen in the field of spine in recent years as a consequence of worldwide contributions. However, the national productivity to the field of spine is still unclear. The aim of this study was to investigate the national contributions in the field of spine. ⋯ The majority of the spine articles are published by authors from high-income countries while few publications from low-income countries. The United States is the most productive country in the field of spine. However, some European countries may be more productive when normalized to population size.
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The purpose was to quantify the structural integrity of annulus fibrosis (AF) after injuries with repair. ⋯ The MPSS can restore the mechanical integrity of the AF after needle puncture. An annular graft along with a MPSS may increase the structural integrity of the AF after a punch injury. As this was an acute animal study, the measurements and results may not directly translate to the human intervertebral disc.