Dual pitch titanium-coated pedicle screws improve initial and early fixation in a polyetheretherketone rod semi-rigid fixation system in sheep
نویسندگان
چکیده
منابع مشابه
Biomechanical study of the sacroiliac fracture fixation with titanium rods and pedicle screws
OBJECTIVES To assess biomechanically different fixations means of the sacroiliac joint with pedicle screws and to compare the traditional head height with reduced ones. METHODS We used a polyethylene model representing the pelvic ring and simulated a unilateral sacroiliac dislocation. We set up three different constructions: 1) two screws attached to a rod; 2) two rods connected to two small ...
متن کاملHydroxyapatite coating improves fixation of pedicle screws. A clinical study.
We investigated the effects of hydroxyapatite (HA) coating on the purchase of pedicle screws. A total of 23 consecutive patients undergoing lumbar fusion was randomly assigned to one of three treatment groups. The first received uncoated stainless-steel screws, the second screws which were partly coated with HA, and the third screws which were fully coated. The insertion torque was recorded. Af...
متن کاملPosterior spinal fixation with pedicle screws and rods system in thoracolumbar spinal fractures.
OBJECTIVE To determine the effectiveness of posterior spinal fixation in maintaining the stability of spine and to determine mortality in 6 months after posterior spinal fixation. STUDY DESIGN Quasi experimental study. PLACE AND DURATION OF STUDY Department of Orthopaedics, Jinnah Postgraduate Medical Centre, Karachi and Department of Orthopaedics, Postgraduate Medical Institute, Hayatabad ...
متن کاملPedicle screw surface coatings improve fixation in nonfusion spinal constructs.
STUDY DESIGN Biomechanical and histologic analysis. OBJECTIVE To compare the strength of the bone-screw interface of standard uncoated pedicle screws with screws treated with hydroxyapatite (HA), titanium plasma spray (TPS), and a composite HA-TPS coating. SUMMARY OF BACKGROUND DATA Transpedicular screw fixation has become the gold standard in the treatment of various thoracolumbar spinal c...
متن کاملEvaluation of the Digisonic® SP cochlear implant: patient outcomes and fixation system with titanium screws.
UNLABELLED Cochlear implants have revolutionized the way patients affected by severe hearing loss experience the world. Neurelec developed a fixation system with two titanium screws that requires no skull bone drilling. OBJECTIVE To describe the outcomes and procedure-related details of a series of patients implanted with the Digisonic® SP cochlear implant. METHOD This retrospective study a...
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ژورنال
عنوان ژورنال: Chinese Medical Journal
سال: 2019
ISSN: 0366-6999
DOI: 10.1097/cm9.0000000000000335