screw insertion
Direct pedicle visualization and disc space orientation as the only guide for lumbar pedicular screw insertion
... All our cases of pedicular screw insertion were pre- ceded by full laminectomy with discectomy for inter- body fusion. In all cases, the medial and inferior aspects of the pedicle are clearly visualized, so ...
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Analysis of the stress distribution of the subtalar joint and fusion efficacy after double-screw insertion
... parallel screw insertion was inferior to the lateral-medial parallel screw ...the screw was inserted toward the talus via the posterior calcaneal tubercle, the projection point of the ...
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Is Freehand Technique of Pedicle Screw Insertion in Thoracolumbar Spine Safe and Accurate? Assessment of 250 Screws.
... The screw insertions were done by five neurosurgeons independently using external landmarks as ...pedicle screw fixation was done were ...the screw was repositioned ...pedicle screw ...
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Morphological analysis for subaxial cervical pedicle screw insertion in developmental and non developmental canal stenosis
... Our study compared the morphological features of sub- axial cervical pedicles between Chinese DCS and NDCS patients. We found that DCS patients had, on average, a greater pedicle outer width, a lower incidence of tiny ...
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The anatomical and radiological relationship between the pars interarticularis and the pedicle in the lumbar spine: Implications for pedicle screw insertion
... This is to declare that the dissertation titled “The anatomical and radiological relationship between the pars interarticularis and the pedicle in the lumbar spine – implications for pedicle screw ...
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True anteroposterior view pedicle screw insertion technique
... pedicle screw insertion technique and patients who underwent conventional percutaneous pedicle screw insertion ...pedicle screw insertion technique, the remarkable advantages of ...
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A novel patient specific three dimensional printed external template to guide iliosacral screw insertion: a retrospective study
... IS screw, measured at the tip of the screw, the nerve root tunnel zone and entry point, on sagittal view CT ...the screw of ...actual screw placement and low rate of penetration into the ...
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Effectiveness of the surgical torque limiter: a model comparing drill- and hand-based screw insertion into locking plates
... power screw insertion was measured through a load cell, registering ...between screw insertion methods. Torque produced for manually driven screw insertion into locking plates ...
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Original Article A digital simulation study of pedicle safe range and perforation risk with screw insertion: a retrospective case series
... with screw insertion was assessed through digital simulation, generating gradient diagrams for risk zone (RZ), safe zone (SZ), edge key points, and safe range of entry point to help achieve safer ...
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Suboccipital neuralgia after C1 pedicle screw insertion: do we neglect atlantooccipital joint violation? - Case report and literature review
... mass screw placement could induce C2 irritation which was deemed to be the determining factor in the patho- genesis of ON [2, 3, ...the screw in the C1–2 foramen was < 4 mm, it could present a high risk ...
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Establishment of fluoroscopy views and standardized procedure of percutaneous magic screw insertion for acetabulum fractures
... magic screw from radiological and operative aspects have been de- ...magic screw channel in 30 pelvic models, and of which the space within the bone structures channel was large enough to inset a ...magic ...
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The accuracy and safety of patient-specific 3D printing screws insertion templates based on external fixation for pelvic screw insertion
... anterior screw-rod fixation to avoid the disadvantages of the external implant with low rates of wound infections ...percutaneous screw is ...lag screw fixation was at least as effective as plate ...
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Radiographic and Clinical Outcomes of Robot Assisted Posterior Pedicle Screw Fixation: Two Year Results from a Randomized Controlled Trial
... cle screw insertion point, while the robot-assisted technique provides screw trajectory guidance along the pre-planned path independent of the surgeon’s ability and ...
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The anatomical evaluation of the dental arches using cone beam computed tomography - an investigation of the availability of bone for placement of mini-screws
... The mean width of attached gingiva in the maxilla and the mandible has been documented in males and females [16]. It varies from tooth to tooth and individual to individual, but is usually less than 5 mm. At same time, ...
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A novel technique for pediatric femoral locked submuscular plate removal: the ‘push-pull’ technique
... plate insertion is gaining popularity reducing the need for large open approaches, interfragmentary fixation, and bone grafting [4-8], and resulting in smaller, more cosme- tically appearing scars ...selective ...
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Masticatory System Biomechanical Photoelastic Simulation fot the Comparision of the Conventional and Uni-Lock Systems in Mandibular Osteosynthesis
... The most significant advantage of locking systems may be that they make it unnecessary for the plate to have intimate contact with the underlying bone in all areas. As the screws are tightened, they “lock” to the plate, ...
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Application of a novel customized guide template in percutaneous pedicle screw placement: an in vitro study
... In this study, a novel template was constructed to assist the placement of percutaneous screws. Before surgery, two tiny positioning screws were inserted into spinous process percutaneously as markers and anchor points ...
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Pseudoaneurysm of the anterior tibial artery after interlocking tibial nailing: an unexpected complication
... tibial artery in close proximity to the level of the proxi- mal interlocking screw insertion (Fig. 3). Subsequently, surgery for vascular repair and fracture reduction of the fibula was performed. The ...
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Evaluation of unilateral cage-instrumented fixation for lumbar spine
... transpedicle screw insertion procedure did not demonstrate significantly difference in comparison with the unilateral group in flexion-extension, lateral bending and axial rotation direction except the ROM ...
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Initial stability and stress distribution of ankle arthroscopic arthrodesis with three kinds of 2-screw configuration fixation: a finite element analysis
... Screw model and the fused tibia-talar joint model were assembled according to three kinds of 2-screw configu- rations for AAA. Three different forms of assembly were used to represent the 2 “home ...
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