Navigated guide tube for the placement of mini-open pedicle screws using stereotactic 3D navigation without the use of K-wires

2013 ◽  
Vol 18 (2) ◽  
pp. 178-183 ◽  
Author(s):  
Benjamin J. Shin ◽  
Innocent U. Njoku ◽  
A. John Tsiouris ◽  
Roger Härtl
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Case Series ◽  
Pedicle Screws ◽  
Posterior Fixation ◽  
Guide Tube ◽  
Invasive Approach ◽  
Spinal Navigation ◽  
K Wires ◽  
Mini Open

Object Three-dimensional spinal navigation increases screw accuracy, but its implementation in clinical practice has been difficult, mainly because of surgeons' concerns about increased operative times, disturbance of workflow, and safety. The authors present a custom-designed navigated guide that addresses some of these concerns by allowing for drilling, tapping, and placing the final screw via a minimally invasive approach without the need for K-wires. In this paper, the authors' goal was to describe the technical aspects of the navigated guide tube as well as pedicle screw accuracy. Methods The authors present the technical details of a navigated guide that allows drilling, tapping, and the placement of the final screw without the need for K-wires. The first 10 patients who received minimally invasive mini-open spinal pedicle screws are presented. The case series focuses on the immediate postoperative outcomes, pedicle screw accuracy, and pedicle screw–related complications. An independent board-certified neuroradiologist determined pedicle screw accuracy according to a 4-tiered grading system. Results The navigated guide allowed successful placement of mini-open pedicle screws as part of posterior fixation from L-1 to S-1 without the use of K-wires. Only 7-mm-diameter screws were placed, and 72% of screws were completely contained within the pedicle. Breaches less than 2 mm were seen in 23% of cases, and these were all lateral except for one screw. Breaches were related to the lateral to medial trajectory chosen to avoid the superior facet joint. There were no complications related to pedicle screw insertion. Conclusions A novel customized navigated guide tube is presented that facilitates the workflow and allows accurate placement of mini-open pedicle screws without the need for K-wires.

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.

scholarly journals Minimally invasive dynamic screw stabilization using cortical bone trajectory

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Chih-Chang Chang ◽  
Chao-Hung Kuo ◽  
Hsuan-Kan Chang ◽  
Tsung-Hsi Tu ◽  
Li-Yu Fay ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Cortical Bone ◽  
Pedicle Screw ◽  
Case Series ◽  
Dynamic Stabilization ◽  
Low Grade ◽  
Cortical Bone Trajectory ◽  
Screw Insertion ◽  
Soft Tissue Dissection ◽  
Spinal Navigation

Abstract Background The conventional pedicle-screw-based dynamic stabilization process involves dissection of the Wiltse plane to cannulate the pedicles, which cannot be undertaken with minimal surgical invasion. Despite some reports having demonstrated satisfactory outcomes of dynamic stabilization in the management of low-grade spondylolisthesis, the extensive soft tissue dissection involved during pedicle screw insertion substantially compromises the designed rationale of motion (muscular) preservation. The authors report on a novel method for minimally invasive insertion of dynamic screws and a mini case series. Methods The authors describe innovations for inserting dynamic screws via the cortical bone trajectory (CBT) under spinal navigation. All the detailed surgical procedures and clinical data are demonstrated. Results A total of four (2 females) patients (mean age 64.75 years) with spinal stenosis at L4–5 were included. By a combination of microscopic decompression and image-guided CBT screw insertion, laminectomy and dynamic screw stabilization were achieved via one small skin incision (less than 3 cm). These patients’ back and leg pain improved significantly after the surgery. Conclusion This innovative dynamic screw stabilization via the CBT involved no discectomy (or removal of sequestrated fragment only), no interbody fusion, and little muscle dissection (not even of the Wiltse plane). As a minimally invasive surgery, CBT appeared to be a viable alternative to the conventional pedicle-screw-based dynamic stabilization approach.

Minimally Invasive Surgical Technique for the Management of Giant Dumbbell Spinal Schwannoma

2021 ◽  
Author(s):  
Jose Poblete ◽  
Jaime Jesus Martinez Anda ◽  
Angel Asdrubal Rebollar Mendoza ◽  
Jorge Torales ◽  
Alberto Di Somma ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Spinal Instrumentation ◽  
Case Series ◽  
Invasive Approach ◽  
Minimally Invasive Surgical ◽  
Spine Instrumentation ◽  
Far Lateral ◽  
Vertebral Bodies ◽  
The University ◽  
Mini Open

Abstract Background Completely extradural spinal schwannomas have a unique morphology (dumbbell tumors) with an intra- and extraspinal component. When they compromise two contiguous vertebral bodies or have an extraspinal extension >2.5 cm, they are classified as giant spinal schwannomas. The aim of this study is to present our experience in the surgical management of completely extradural giant spinal schwannomas with a minimally invasive approach. Methods This study is a case series of patients treated at the Neurosurgery Department of the University Clinical and Provincial Hospital of Barcelona, Spain, between January 2016 and December 2019. Results Fifteen patients met the inclusion criteria, with thoracic and lumbar spines being the most frequent locations. All patients underwent surgical treatment, with a mini-open interlaminar and far-lateral technique. Total gross resection was accomplished in all patients and spine instrumentation was not necessary. Conclusions Microsurgery is the treatment of choice for spinal schwannomas, and gross total resection with low morbidity must be the surgical goal. Mini-open interlaminar and far-lateral access is a valid surgical option, with low morbidity in experienced hands, and there is no need for spinal instrumentation.

Short-Term Radiographic Outcomes of Calcaneus Fractures Treated With 2-Incision, Minimally Invasive Approach

2019 ◽  
Vol 40 (9) ◽  
pp. 1060-1067
Author(s):  
Snow B. Daws ◽  
Kaitlin Neary ◽  
Gregory Lundeen
Keyword(s):  
Minimally Invasive ◽  
Sensory Nerve ◽  
Case Series ◽  
Fracture Reduction ◽  
Minimally Invasive Approach ◽  
Invasive Treatment ◽  
Level Of Evidence ◽  
Invasive Approach ◽  
Calcaneus Fractures ◽  
Böhler’S Angle

Background: The treatment of displaced, intra-articular calcaneus fractures is controversial. The extensile lateral approach has been historically preferred because it provides excellent exposure and visualization for fracture reduction. However, soft tissue complications with this approach can lead to poor outcomes for patients. Recently, there has been an interest in the minimally invasive treatment of calcaneus fractures. The purpose of the present study was to determine the radiographic reduction of displaced, intra-articular calcaneus fractures and the rate of complications using a 2-incision, minimally invasive approach. Methods: A dual-incision, minimally invasive approach with plate and screw fixation was utilized for the treatment of 32 patients with displaced, intra-articular calcaneus fractures. Preoperative and postoperative calcaneal measurements were taken to assess fracture reduction. Additionally, a retrospective chart review was performed to assess for complications. Results: The mean preoperative Bohler’s angle measurement was 12.9 (range, –5 to 36) degrees and the final postoperative Bohler’s angle was 31.7 (range, 16-40) degrees. One patient (3.1%) had postoperative numbness related to the medial incision in the calcaneal branch sensory nerve distribution. Two patients (6.2%) had a wound infection treated with local wound care and oral antibiotics, while 1 patient (3.1%) had a deep infection that required a secondary surgery for irrigation and debridement. Two patients (6.2%) returned to the operating room for removal of symptomatic hardware. Conclusion: Operative fixation of displaced, intra-articular calcaneus fractures treated with a 2-incision, minimally invasive approach resulted in acceptable fracture reduction with a minimal rate of complications. Level of Evidence: Level IV, retrospective case series.

scholarly journals Instrumentation Removal following Minimally Invasive Posterior Percutaneous Pedicle Screw-Rod Stabilization (PercStab) of Thoracolumbar Fractures Is Not Always Required

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Neil Manson ◽  
Dana El-Mughayyar ◽  
Erin Bigney ◽  
Eden Richardson ◽  
Edward Abraham
Keyword(s):  
Patient Satisfaction ◽  
Blood Loss ◽  
Minimally Invasive ◽  
Pedicle Screw ◽  
Rating Scales ◽  
Case Series ◽  
Leg Pain ◽  
Mild Pain ◽  
Open Stabilization ◽  
Percutaneous Pedicle Screw

Study Design. Clinical case series. Background. Percutaneous stabilization for spinal trauma confers less blood loss, reduces postoperative pain, and is less invasive than open stabilization and fusion. The current standard of care includes instrumentation removal. Objective. 1. Reporting patient outcomes following minimally invasive posterior percutaneous pedicle screw-rod stabilization (PercStab). 2. Evaluating the results of instrumentation retention. Methods. A prospective observational study of 32 consecutive patients receiving PercStab without direct decompression or fusion. Baseline data demographics were collected. Operative outcomes of interest were operative room (OR) time, blood loss, and length of hospital stay. Follow-up variables of interest included patient satisfaction, Numeric Rating Scales for Back and Leg (NRS-B/L) pain, Oswestry Disability Index (ODI), and return to work. Clinical outcome data (ODI and NRS-B/L) were collected at 3, 12, 24 months and continued at a 24-month interval up to a maximum of 8 years postoperatively. Results. 81.25% of patients (n = 26) retained their instrumentation and reported minimal disability, mild pain, and satisfaction with their surgery and returned to work (mean = 6 months). Six patients required instrumentation removal due to prominence of the instrumentation or screw loosening, causing discomfort/pain. Instrumentation removal patients reported moderate back and leg pain until removal occurred; after removal, they reported minimal disability and mild pain. Neither instrumentation removal nor retention resulted in complications or further surgical intervention. Conclusions. PercStab without instrumentation removal provided high patient satisfaction, mild pain, and minimal disability and relieved the patient from the burden of finances and resources allocation of a second surgery.

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 The Arrowhead Ministernotomy with Rigid Sternal Plate Fixation: A Minimally Invasive Approach for Surgery of the Ascending Aorta and Aortic Root

2014 ◽  
Vol 2014 ◽  
pp. 1-3 ◽  
Author(s):  
Mark J. Russo ◽  
John Gnezda ◽  
Aurelie Merlo ◽  
Elizabeth M. Johnson ◽  
Mohammad Hashmi ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Aortic Root ◽  
Plate Fixation ◽  
Aortic Surgery ◽  
Case Series ◽  
Ascending Aorta ◽  
The Body ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Novel Approach

Background. Ministernotomy incisions have been increasingly used in a variety of settings. We describe a novel approach to ministernotomy using arrowhead incision and rigid sternal fixation with a standard sternal plating system.Methods. A small, midline, vertical incision is made from the midportion of the manubrium to a point just above the 4th intercostal mark. The sternum is opened in the shape of an inverted T using two oblique horizontal incisions from the midline to the sternal edges. At the time of chest closure, the three bony segments are aligned and approximated, and titanium plates (Sternalock, Jacksonville, Florida) are used to fix the body of the sternum back together.Results. This case series includes 11 patients who underwent arrowhead ministernotomy with rigid sternal plate fixation for aortic surgery. The procedures performed were axillary cannulation (n=2), aortic root replacement (n=3), valve sparing root replacement (n=3), and replacement of the ascending aorta (n=11) and/or hemiarch (n=2). Thirty-day mortality was 0%; there were no conversions, strokes, or sternal wound infections.Conclusions. Arrowhead ministernotomy with rigid sternal plate fixation is an adequate minimally invasive approach for surgery of the ascending aorta and aortic root.

scholarly journals Transorbital Endoscopic Surgery for Sphenoid Wing Meningioma: Long-Term Outcomes and Surgical Technique

2020 ◽  
Vol 81 (04) ◽  
pp. 357-368
Author(s):  
N. Goncalves ◽  
D.E. Lubbe
Keyword(s):  
Minimally Invasive ◽  
Endoscopic Surgery ◽  
Case Series ◽  
Surgical Approaches ◽  
Benign Tumors ◽  
Long Term Outcomes ◽  
Invasive Approach ◽  
Visual Outcomes ◽  
Presenting Symptoms

AbstractSphenoid wing meningiomas are benign tumors that can result in proptosis, visual impairment, and pain. Traditional open surgical approaches are associated with significant morbidity. Transorbital endoscopic surgery has been developed as a minimally invasive approach to gain access to these tumors and address the main presenting symptoms. Case series reporting transorbital endoscopic resection of sphenoid wing meningiomas using combined endonasal, pre-caruncular, and extended superior eyelid approaches have demonstrated stable and/or improved short- and medium-term visual outcomes. Earlier medial optic nerve decompression appears to result in more favorable long-term visual outcomes. Transorbital endoscopic surgery therefore represents an emerging minimally invasive alternative to deal with these challenging lesions.

scholarly journals Robotic Stereotactic Assistance (ROSA) for Pediatric Epilepsy: A Single-Center Experience of 23 Consecutive Cases

Children ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 94
Author(s):  
Jonathon H. Nelson ◽  
Samantha L. Brackett ◽  
Chima O. Oluigbo ◽  
Srijaya K. Reddy
Keyword(s):  
Minimally Invasive ◽  
Pediatric Patients ◽  
Case Series ◽  
Intractable Epilepsy ◽  
Electrode Placement ◽  
Perioperative Outcomes ◽  
Surgical Approaches ◽  
Single Center ◽  
Invasive Approach ◽  
Ablative Surgery

Robotic assisted neurosurgery has become increasingly utilized for its high degree of precision and minimally invasive approach. Robotic stereotactic assistance (ROSA®) for neurosurgery has been infrequently reported in the pediatric population. The goal of this case series was to describe the clinical experience, anesthetic and operative management, and treatment outcomes for pediatric patients with intractable epilepsy undergoing ROSA® neurosurgery at a single-center institution. Patients who underwent implantation of stereoelectroencephalography (SEEG) leads for intractable epilepsy with ROSA® were retrospectively evaluated between August 2016 and June 2018. Demographics, perioperative management details, complications, and preliminary seizure outcomes after resective or ablative surgery were reviewed. Nineteen children who underwent 23 ROSA® procedures for SEEG implantation were included in the study. Mean operative time was 148 min. Eleven patients had subsequent resective or ablative surgery, and ROSA® was used to assist with laser probe insertion in five patients for seizure foci ablation. In total, 148 SEEG electrodes were placed without any perioperative complications. ROSA® is minimally invasive, provides superior accuracy for electrode placement, and requires less time than traditional surgical approaches for brain mapping. This emerging technology may improve the perioperative outcomes for pediatric patients with intractable epilepsy since large craniotomies are avoided; however, long-term follow-up studies are needed.

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