Clinical spine surgery
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Clinical spine surgery · Jul 2017
Comparative StudyBiomechanical Investigation of a Novel Revision Device in an Osteoporotic Model: Pullout Strength of Pedicle Screw Anchor Versus Larger Screw Diameter.
In vitro cadaveric biomechanical study. ⋯ Anchor sleeves with 6.5-mm-diameter pedicle screws provided markedly higher resistance to screw pullout than 7.5-mm-diameter revision screws and fixation statistically equivalent to 8.5-mm-diameter screws, possibly because of medial-lateral expansion within the vertebral space and/or convex filling of the pedicle. AS results had the lowest SD, indicating minimal variability in bone-screw purchase.
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Clinical spine surgery · Jul 2017
Correlations Between the SF-36, the Oswestry-Disability Index and Rolland-Morris Disability Questionnaire in Patients Undergoing Lumbar Decompression According to Types of Spine Origin Pain.
Cross-sectional study. ⋯ Moderate correlation was found between ODI or RMDQ as a condition-specific outcome and the SF-36, indicating overall health status. ODI was found to be a more adequate measure to evaluate axial back pain rather than referred pain or radiating pain. RMDQ was adequate to measure the health status and to evaluate the 3 types of spine pain. These 3 instruments could therefore provide the clinician with complementary information about the patient's status.
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Clinical spine surgery · Jul 2017
Suture Choice in Lumbar Dural Closure Contributes to Variation in Leak Pressures: Experimental Model.
Open-label laboratory investigational study; non-animal surgical simulation. ⋯ Durotomy closure in the lumbar spine with Gore-Tex suture may be a reasonable option for providing a watertight closure. In this laboratory study, Gore-Tex suture provided watertight dural closures that withstood higher peak pressures.