A NOVEL NANOHYDROXYAPATITE/POLYAMIDE-66 CAGE FOR REDUCING THE SUBSIDENCE RATE AFTER SINGLE-LEVEL ANTERIOR CERVICAL DISCECTOMY AND FUSION: A COMPARATIVE STUDY OF 7-YEAR FOLLOW-UP

A novel nanohydroxyapatite/polyamide-66 cage for reducing the subsidence rate after single-level anterior cervical discectomy and fusion: a comparative study of 7-year follow-up

Abstract Background A novel nanohydroxyapatite/polyamide-66 cage (n-HA/PA66 cage) with a horseshoe shape was designed to lower the subsidence rate of the traditional hollow cylindrical n-HA/PA66 cage.However, no studies have compared the incidence of subsidence in the two cages.The purpose of this study was to compare the long-term clinical and rad

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Biology of tiny animals: three new species of minute salamanders (Plethodontidae: Thorius) from Oaxaca, Mexico

We describe three new species of minute salamanders, genus Thorius, from the Sierra Madre del Sur of Oaxaca, Mexico.Until now only a single species, T.minutissimus, has been reported from this region, although molecular data have long shown extensive genetic differentiation among geographically disjunct populations.Adult Thorius pinicola sp.nov., T

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