scholarly journals Positioning Performance of Power and Manual Drivers in Posterior Spinal Fusion Procedures

2017 ◽  
Vol 2017 ◽  
pp. 1-9
Author(s):  
J. Micah Prendergast ◽  
Alexander C. Perry ◽  
Vikas V. Patel ◽  
Emily M. Lindley ◽  
Mark E. Rentschler
Keyword(s):  
Spinal Fusion ◽  
Navigation System ◽  
Surgical Navigation ◽  
Pedicle Screws ◽  
Posterior Spinal Fusion ◽  
Screw Placement ◽  
Reference Plane ◽  
Mean Deviation ◽  
Angular Deviation ◽  
Spinal Fusion Surgery

This work presents an analysis and comparison of the efficacy of two methods for pedicle screw placement during posterior spinal fusion surgery. A total of 100 screws (64 manual and 36 power driven), all placed utilizing a surgical navigation system, were analyzed and compared. Final screw placement was compared to initial surgical plans using the navigation system, and the final screw locations were analyzed on the basis of angular deviation from these planned trajectories as well as screw translation within a critical reference plane. The power driver was found to insignificantly decrease the resulting angular deviation of these pedicle screws with a mean deviation of 3.35 degrees compared to 3.44 degrees with the manual driver (p=0.853). Conversely, the power driver was found to increase the translational distance in the critical region, with mean deviations of 2.45 mm for the power driver compared to 1.54 mm with the manual driver. The increase in translational deviation was significant (p=0.002) indicating that there may be some loss in performance from the adoption of the power driver.

scholarly journals Feasibility and Accuracy of Thoracolumbar Pedicle Screw Placement Using an Augmented Reality Head Mounted Device

Sensors ◽  
2022 ◽  
Vol 22 (2) ◽  
pp. 522
Author(s):  
Henrik Frisk ◽  
Eliza Lindqvist ◽  
Oscar Persson ◽  
Juliane Weinzierl ◽  
Linda K. Bruetzel ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Navigation System ◽  
Pedicle Screws ◽  
Screw Placement ◽  
Mean Deviation ◽  
Angular Deviation ◽  
Clinical Accuracy ◽  
Screw Position ◽  
Grading Scale ◽  
The Mean

Background: To investigate the accuracy of augmented reality (AR) navigation using the Magic Leap head mounted device (HMD), pedicle screws were minimally invasively placed in four spine phantoms. Methods: AR navigation provided by a combination of a conventional navigation system integrated with the Magic Leap head mounted device (AR-HMD) was used. Forty-eight screws were planned and inserted into Th11-L4 of the phantoms using the AR-HMD and navigated instruments. Postprocedural CT scans were used to grade the technical (deviation from the plan) and clinical (Gertzbein grade) accuracy of the screws. The time for each screw placement was recorded. Results: The mean deviation between navigation plan and screw position was 1.9 ± 0.7 mm (1.9 [0.3–4.1] mm) at the entry point and 1.4 ± 0.8 mm (1.2 [0.1–3.9] mm) at the screw tip. The angular deviation was 3.0 ± 1.4° (2.7 [0.4–6.2]°) and the mean time for screw placement was 130 ± 55 s (108 [58–437] s). The clinical accuracy was 94% according to the Gertzbein grading scale. Conclusion: The combination of an AR-HMD with a conventional navigation system for accurate minimally invasive screw placement is feasible and can exploit the benefits of AR in the perspective of the surgeon with the reliability of a conventional navigation system.

Fatal pulmonary fat embolism after posterior spinal fusion surgery

2006 ◽  
Vol 11 (2) ◽  
pp. 217-220 ◽  
Author(s):  
Yoshimasa Takahashi ◽  
Ken’ichiro Narusawa ◽  
Kenji Shimizu ◽  
Masakazu Takata ◽  
Toshitaka Nakamura
Keyword(s):  
Spinal Fusion ◽  
Posterior Spinal Fusion ◽  
Fat Embolism ◽  
Fusion Surgery ◽  
Spinal Fusion Surgery ◽  
Pulmonary Fat Embolism

scholarly journals The use of intraoperative navigation for complex upper cervical spine surgery

2014 ◽  
Vol 36 (3) ◽  
pp. E5 ◽  
Author(s):  
Kern H. Guppy ◽  
Indro Chakrabarti ◽  
Amit Banerjee
Keyword(s):  
Cervical Spine ◽  
Navigation System ◽  
Surgical Navigation ◽  
Spinal Instrumentation ◽  
Pedicle Screws ◽  
Upper Cervical Spine ◽  
Cervical Canal ◽  
Lateral Mass ◽  
Upper Cervical ◽  
Lateral Mass Screws

Imaging guidance using intraoperative CT (O-arm surgical imaging system) combined with a navigation system has been shown to increase accuracy in the placement of spinal instrumentation. The authors describe 4 complex upper cervical spine cases in which the O-arm combined with the StealthStation surgical navigation system was used to accurately place occipital screws, C-1 screws anteriorly and posteriorly, C-2 lateral mass screws, and pedicle screws in C-6. This combination was also used to navigate through complex bony anatomy altered by tumor growth and bony overgrowth. The 4 cases presented are: 1) a developmental deformity case in which the C-1 lateral mass was in the center of the cervical canal causing cord compression; 2) a case of odontoid compression of the spinal cord requiring an odontoidectomy in a patient with cerebral palsy; 3) a case of an en bloc resection of a C2–3 chordoma with instrumentation from the occiput to C-6 and placement of C-1 lateral mass screws anteriorly and posteriorly; and 4) a case of repeat surgery for a non-union at C1–2 with distortion of the anatomy and overgrowth of the bony structure at C-2.

scholarly journals A Novel Augmented-Reality-Based Surgical Navigation System for Spine Surgery in a Hybrid Operating Room: Design, Workflow, and Clinical Applications

2019 ◽  
Vol 18 (5) ◽  
pp. 496-502 ◽  
Author(s):  
Erik Edström ◽  
Gustav Burström ◽  
Rami Nachabe ◽  
Paul Gerdhem ◽  
Adrian Elmi Terander
Keyword(s):  
Augmented Reality ◽  
Radiation Exposure ◽  
Pedicle Screw ◽  
Operating Room ◽  
Wound Closure ◽  
Surgical Navigation ◽  
Pedicle Screws ◽  
Screw Placement ◽  
Hybrid Operating Room ◽  
Pedicle Screw Placement

Abstract BACKGROUND Treatment of several spine disorders requires placement of pedicle screws. Detailed 3-dimensional (3D) anatomic information facilitates this process and improves accuracy. OBJECTIVE To present a workflow for a novel augmented-reality-based surgical navigation (ARSN) system installed in a hybrid operating room for anatomy visualization and instrument guidance during pedicle screw placement. METHODS The workflow includes surgical exposure, imaging, automatic creation of a 3D model, and pedicle screw path planning for instrument guidance during surgery as well as the actual screw placement, spinal fixation, and wound closure and intraoperative verification of the treatment results. Special focus was given to process integration and minimization of overhead time. Efforts were made to manage staff radiation exposure avoiding the need for lead aprons. Time was kept throughout the procedure and subdivided to reflect key steps. The navigation workflow was validated in a trial with 20 cases requiring pedicle screw placement (13/20 scoliosis). RESULTS Navigated interventions were performed with a median total time of 379 min per procedure (range 232-548 min for 4-24 implanted pedicle screws). The total procedure time was subdivided into surgical exposure (28%), cone beam computed tomography imaging and 3D segmentation (2%), software planning (6%), navigated surgery for screw placement (17%) and non-navigated instrumentation, wound closure, etc (47%). CONCLUSION Intraoperative imaging and preparation for surgical navigation totaled 8% of the surgical time. Consequently, ARSN can routinely be used to perform highly accurate surgery potentially decreasing the risk for complications and revision surgery while minimizing radiation exposure to the staff.

scholarly journals Prognostic Factors of Thoracic Hypokyphosis after Posterior Spinal Fusion in Adolescent Idiopathic Scoliosis using by All Pedicle Screws Instrumentation

2016 ◽  
Vol 6 (1_suppl) ◽  
pp. s-0036-1582680-s-0036-1582680
Author(s):  
Perez Vergara Silvia ◽  
Rubio Belmar Pedro ◽  
Bas Hermida Teresa ◽  
Bas Hermida Paloma
Keyword(s):  
Prognostic Factors ◽  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Spinal Fusion ◽  
Pedicle Screws ◽  
Posterior Spinal Fusion
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