scholarly journals Comparison of the clinical efficacy of the Wiltse paraspinal approach and O-arm navigation for the treatment of thoracolumbar fractures

2020 ◽  
Author(s):  
Yingjie Lu ◽  
Tianfeng Zhu ◽  
Xu Shen ◽  
Yuepeng Fang ◽  
Dongdong Lu ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Clinical Efficacy ◽  
Screw Fixation ◽  
Pedicle Screw Fixation ◽  
Thoracolumbar Fracture ◽  
Screw Placement ◽  
Pedicle Screw Placement ◽  
Percutaneous Pedicle Screw ◽  
Paraspinal Approach

Abstract Background: To evaluate the clinical efficacy of the Wiltse paraspinal approach and percutaneous pedicle screw placement under O-arm navigation for the treatment of thoracolumbar fracture.Methods: We enrolled a total of 54 patients with neurologically intact thoracolumbar fracture who received minimally invasive treatment. Among these, 28 patients were treated with pedicle screw fixation through the Wiltse paraspinal approach (WPSF), and another 26 were received percutaneous pedicle screw fixation under O-arm navigation (OPSF). Statistical methods were used to perform a detailed comparison of clinical outcomes, radiologic findings and complications between the two groups obtained preoperatively, postoperatively and at last follow-up.Results: There were no significant differences between the two groups in terms of the intraoperative bleeding, length of incision, postoperative hospitalization durations or accuracy rate of pedicle screw placement (p>0.05). Visual analog scale (VAS) scores, Oswestry disability in­dex (ODI) scores, local Cobb angle (LCA), vertebral wedge angle (VWA) and R value were notably improved after surgery, though no clear discrepancy between the groups at each time point (p>0.05). However, the OPSF group had a longer operation time and greater surgical expenditure than the WPSF group (p<0.05).Conclusions: Both WPSF and OPSF were safe and effective for the treatment of thoracolumbar fracture. Although the two groups showed favorable clinical and radiologic outcomes through the final follow-up, we recommended the minimally invasive WPSF given its lower duration of surgery and medical costs. A randomized controlled study of high-quality and with a larger sample size is required to comfirm our findings in the future.

scholarly journals Comparison of the clinical efficacy of Wiltse paraspinal approach and O-arm navigation for the treatment of thoracolumbar fractures

2020 ◽  
Author(s):  
Yingjie Lu ◽  
Tianfeng Zhu ◽  
Xu Shen ◽  
Yuepeng Fang ◽  
Dongdong Lu ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Clinical Efficacy ◽  
Wedge Angle ◽  
Thoracolumbar Fracture ◽  
Screw Placement ◽  
Controlled Study ◽  
Pedicle Screw Placement ◽  
Paraspinal Approach ◽  
Duration Of Surgery

Abstract Background To evaluate the clinical efficacy of Wiltse paraspinal approach and percutaneous pedicle screw placement under O-arm navigation for the treatment of thoracolumbar fracture.Methods We enrolled a total of 54 patients with neurologically intact thoracolumbar fracture that received minimally invasive technology. Among these, 28 cases were treated with pedicle screw fixation through Wiltse paraspinal approach (WPSF), and another 26 cases were received percutaneous pedicle screws fixation under O-arm navigation (OPSF). The statistical methods were used to performing a detailed comparison of clinical outcomes, radiologic findings and complications between the two groups at pre-op, post-op and last follow-up.Results There were no significant differences between the two groups among intraoperative bleeding, length of incision, postoperative hospitalization times and accuracy rate of pedicle screw placement (p>0.05). Visual analog scale (VAS) scores, Oswestry disability in­dex (ODI) scores, local Cobb angle (LCA), vertebral wedge angle (VWA) and R value were obviously improved after surgery, though no clear discrepancy between the groups at each time point (p>0.05). However, the OPSF group had longer operation time and higher surgical expenditure than the WPSF group (p<0.05).Conclusions Both WPSF and OPSF were safe and effective for the treatment of thoracolumbar fracture. Although the two groups showed favorable clinical and radiologic outcomes till the final follow-up, we recommended the minimally invasive technology of WPSF considering the lower duration of surgery and medical costs. A randomized controlled study of high-quality and large sample required to prove our findings in the future.

Minimally Invasive Single-Position Lateral Interbody Fusion With Robotic Bilateral Percutaneous Pedicle Screw Fixation: 2-Dimensional Operative Video

2018 ◽  
Vol 16 (4) ◽  
pp. E121-E121 ◽  
Author(s):  
Corey T Walker ◽  
Jakub Godzik ◽  
David S Xu ◽  
Nicholas Theodore ◽  
Juan S Uribe ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Interbody Fusion ◽  
Screw Fixation ◽  
Pedicle Screw Fixation ◽  
Screw Placement ◽  
Lateral Interbody Fusion ◽  
Percutaneous Pedicle Screw ◽  
Percutaneous Pedicle Screw Fixation ◽  
Lateral Interbody

Abstract Lateral interbody fusion has distinct advantages over traditional posterior approaches. When adjunctive percutaneous pedicle screw fixation is required, placement from the lateral decubitus position theoretically increases safety and improves operative efficiency by obviating the need for repositioning. However, safe cannulation of the contralateral, down-side pedicles remains technically challenging and often prohibitive. In this video, we present the case of a 59-yr-old man with refractory back pain and bilateral lower extremity radiculopathy that was worse on the left than right side. The patient provided written informed consent before undergoing treatment. We performed minimally invasive single-position lateral interbody fusion with robotic (ExcelsiusGPS, Globus Medical Inc, Audubon, Pennsylvania) bilateral percutaneous pedicle screw fixation for the treatment of asymmetric disc degeneration, dynamic instability, and left paracentral disc herniation with corresponding stenosis at the L3-4 level. A left-sided minimally invasive transpsoas lateral interbody graft was placed with fluoroscopic guidance. Without changing the position of the patient or breaking the sterile field, an intraoperative cone-beam computed tomography image was obtained for navigational screw placement with stereotactic trackers in the iliac spine. Screw trajectories were planned using the robotic navigation software and were placed percutaneously in the bilateral L3 and L4 pedicles using the robotic arm. Concomitant lateral fluoroscopy may be used if desired to ensure the fidelity of the robotic guidance. The patient recovered well postoperatively and was discharged home within 36 h, without complication. Single-position lateral interbody fusion and percutaneous pedicle screw fixation can be accomplished using robotic-assisted navigation and pedicle screw placement. Used with permission from Barrow Neurological Institute.

scholarly journals Radiographic Accuracy of Percutaneous Pedicle Screw Placement in Fluoroscopic- Versus CT Navigation-Guided Lumbar Spine Instrumentation

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Guang-Ting Cong ◽  
Avani Vaishnav ◽  
Joseph Barbera ◽  
Hiroshi Kumagai ◽  
James Dowdell ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Minimally Invasive ◽  
Pedicle Screw ◽  
Spinal Instrumentation ◽  
Screw Placement ◽  
Pedicle Screw Placement ◽  
Intraoperative Computed Tomography ◽  
Percutaneous Pedicle Screw ◽  
Spine Instrumentation ◽  
Surgical Methods

Abstract INTRODUCTION Posterior spinal instrumentation for fusion using intraoperative computed tomography (CT) navigation is gaining traction as an alternative to the conventional two-dimensional fluoroscopic-guided approach to percutaneous pedicle screw placement. However, few studies to date have directly compared outcomes of these 2 minimally invasive instrumentation methods. METHODS A consecutive cohort of patients undergoing primary percutaneous posterior lumbar spine instrumentation for spine fusion was retrospectively reviewed. Revision surgeries or cases converted to open were excluded. Accuracy of screw placement was assessed using a postoperative CT scan with blinding to the surgical methods used. The Gertzbein-Robbins classification was used to grade cortical breach: Grade 0 (<0 mm cortical breach), Grade I (<2 mm), Grade II (2-4 mm), Grade III (4-6 mm), and Grade IV (>6 mm). RESULTS CT navigation was found to significantly improve accuracy of screw placement (P < .022). There was significantly more facet violation of the unfused level in the fluoroscopy group vs the CT group (9% vs 0.5%; P < .0001). There was also a higher proportion of poor screw placement in the fluoroscopy group (10.1% vs 3.6%). No statistical difference was found in the rate of tip breach, inferomedial breach, or lateral breach. Regression analysis showed that fluoroscopy had twice the odds of incurring poor screw placement as compared to CT navigation. CONCLUSION This radiographic study comparing screw placement in minimally invasive fluoroscopy- vs CT navigation-guided lumbar spine instrumentation provides evidence that CT navigation significantly improves accuracy of screw placement, especially in optimizing the screw trajectory so as to avoid facet violation. Long-term follow-up studies should be performed to ascertain whether this difference can contribute to an improvement in clinical outcomes.

scholarly journals Minimally invasive transforaminal lumbar interbody fusion with percutaneous navigated guidewireless lumbosacral pedicle screw fixation

2016 ◽  
Vol 41 (videosuppl1) ◽  
pp. 1 ◽  
Author(s):  
Kevin S. Chen ◽  
Paul Park
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Interbody Fusion ◽  
Transforaminal Lumbar Interbody Fusion ◽  
Pedicle Screw Fixation ◽  
Screw Placement ◽  
Foraminal Stenosis ◽  
Invasive Approach ◽  
Percutaneous Pedicle Screw ◽  
Key Steps

This video details the minimally invasive approach for treatment of a symptomatic Grade II lytic spondylolisthesis with high-grade foraminal stenosis. In this procedure, the use of a navigated, guidewireless technique for percutaneous pedicle screw placement at the lumbosacral junction is highlighted following initial decompression and transforaminal interbody fusion. Key steps of the procedure are delineated that include positioning, exposure, technique for interbody fusion, intraoperative image acquisition, and use of a concise 2-step process for navigated screw placement without using guidewires.The video can be found here: https://youtu.be/2u6H4Pc_8To.

scholarly journals Minimally invasive guidewireless, navigated pedicle screw placement: a technical report and case series

2017 ◽  
Vol 43 (2) ◽  
pp. E9 ◽  
Author(s):  
Brandon W. Smith ◽  
Jacob R. Joseph ◽  
Michael Kirsch ◽  
Mary Oakley Strasser ◽  
Jacob Smith ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Kirschner Wire ◽  
Case Series ◽  
Pedicle Screws ◽  
Screw Placement ◽  
Pedicle Screw Placement ◽  
Minimally Invasive Spinal Surgery ◽  
Screw Insertion ◽  
Percutaneous Pedicle Screw

OBJECTIVEPercutaneous pedicle screw insertion (PPSI) is a mainstay of minimally invasive spinal surgery. Traditionally, PPSI is a fluoroscopy-guided, multistep process involving traversing the pedicle with a Jamshidi needle, placement of a Kirschner wire (K-wire), placement of a soft-tissue dilator, pedicle tract tapping, and screw insertion over the K-wire. This study evaluates the accuracy and safety of PPSI with a simplified 2-step process using a navigated awl-tap followed by navigated screw insertion without use of a K-wire or fluoroscopy.METHODSPatients undergoing PPSI utilizing the K-wire–less technique were identified. Data were extracted from the electronic medical record. Complications associated with screw placement were recorded. Postoperative radiographs as well as CT were evaluated for accuracy of pedicle screw placement.RESULTSThirty-six patients (18 male and 18 female) were included. The patients’ mean age was 60.4 years (range 23.8–78.4 years), and their mean body mass index was 28.5 kg/m2 (range 20.8–40.1 kg/m2). A total of 238 pedicle screws were placed. A mean of 6.6 pedicle screws (range 4–14) were placed over a mean of 2.61 levels (range 1–7). No pedicle breaches were identified on review of postoperative radiographs. In a subgroup analysis of the 25 cases (69%) in which CT scans were performed, 173 screws were assessed; 170 (98.3%) were found to be completely within the pedicle, and 3 (1.7%) demonstrated medial breaches of less than 2 mm (Grade B). There were no complications related to PPSI in this cohort.CONCLUSIONSThis streamlined 2-step K-wire–less, navigated PPSI appears safe and accurate and avoids the need for radiation exposure to surgeon and staff.

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