Compared with conventional procedures, an intraoperative navigation system for ventriculoperitoneal shunting via the occipital horn improves outcomes in patients with hydrocephalus

Abstract Background: Ventriculoperitoneal shunting (VPS) is a common neurosurgical procedure for treating hydrocephalus. Catheter obstruction is one of the most common factors that influences patient prognosis. We evaluated the accuracy of proximal catheter placement and explored the probable relationship between ventricular catheter obstruction and both symptom grade and postoperative Evans index between an intraoperative navigation system for VPS and conventional surgery via the occipital horn. Methods: We performed a retrospective study of 33 patients with VPS (he navigation surgery group) and 26 patients with VPS (the conventional surgery group) seen between January 2012 and August 2018. The clinical data, follow-up times, catheterization accuracy, postoperative outcomes, cumulative survival times and correlations between catheter placement and obstruction, symptom grade and the postoperative Evans index. Results: Thirty-one patients experienced optimal ventricular catheter placement (grade 1), 2 experienced suboptimal placement (grade 2), and none experienced poor ventricular catheter placement (grade 3) in the navigation surgery group, whereas 6, 14, and 6 patients, respectively, had these results in the conventional surgery group. There was greater improvement in postoperative symptoms (P=0.017), including less catheter readjustment (P<0.001), in the navigation surgery group. Kaplan-Meier survival analysis showed that the cumulative catheter obstruction-free survival time was longer in the navigation surgery group than in the conventional surgery group (P=0.028). Catheter placement was significantly correlated with catheter obstruction (P<0.001). In addition, catheter obstruction was significantly correlated with the symptom grade (P=0.001) and postoperative Evans index (P<0.001). Conclusions: An intraoperative navigation system for VPS improved patient outcomes and the accuracy of ventricular catheter placement. Catheter obstruction-free survival times were longer in the navigation surgery group, and catheter placement was significantly correlated with catheter obstruction.

Download Full-text

Compared with conventional procedures performed via the occipital horn, an intraoperative navigation system for ventriculoperitoneal shunting improves outcomes in patients with hydrocephalus

10.21203/rs.2.10049/v3 ◽

2019 ◽

Author(s):

AiJun Peng ◽

Hai Zhao ◽

YongKang Wu ◽

Yi Zhao ◽

LiangXue Zhou

Keyword(s):

Navigation System ◽

Catheter Placement ◽

Intraoperative Navigation ◽

Ventricular Catheter ◽

Conventional Surgery ◽

Navigation Surgery ◽

Surgery Group ◽

Ventriculoperitoneal Shunting ◽

Catheter Obstruction ◽

Evans Index

Abstract Background: Ventriculoperitoneal shunting (VPS) is a common neurosurgical procedure used to treat hydrocephalus. Catheter obstruction is one of the most common factors that influences patient prognosis. We therefore evaluated the accuracy of proximal catheter placement and explored the probable relationship between ventricular catheter obstruction and both symptom grade and postoperative Evans index between an intraoperative navigation system for VPS and conventional surgery via the occipital horn. Methods: We performed a retrospective study of 33 patients with VPS (the navigation surgery group) and 26 patients with VPS (the conventional surgery group) seen between January 2012 and August 2018. The clinical data, follow-up times, catheterization accuracy, postoperative outcomes, cumulative survival times and correlations between catheter placement and obstruction, symptom grade and the postoperative Evans index were analyzed. Results: Thirty-one patients experienced optimal ventricular catheter placement (grade 1), 2 experienced suboptimal placement (grade 2), and none experienced poor ventricular catheter placement (grade 3) in the navigation surgery group, whereas 6, 14, and 6 patients, respectively, had these results in the conventional surgery group. Greater improvement was observed in postoperative symptoms (P=0.017), including less catheter readjustment (P<0.001), in the navigation surgery group. A Kaplan-Meier survival analysis showed that the cumulative catheter obstruction-free survival time was longer in the navigation surgery group than in the conventional surgery group (P=0.028). Moreover, catheter placement was significantly correlated with catheter obstruction (P<0.001). In addition, catheter obstruction was significantly correlated with the symptom grade (P=0.001) and postoperative Evans index (P<0.001). Conclusions: An intraoperative navigation system for VPS improved patient outcomes and the accuracy of ventricular catheter placement. Catheter obstruction-free survival times were longer in the navigation surgery group, and catheter placement was significantly correlated with catheter obstruction.

Download Full-text

Use of an intraoperative navigation system and piezoelectric surgery for styloidectomy in a patient with Eagle’s syndrome: a case report

Journal of Medical Case Reports ◽

10.1186/s13256-017-1464-3 ◽

2017 ◽

Vol 11 (1) ◽

Cited By ~ 7

Author(s):

Shintaro Sukegawa ◽

Takahiro Kanno ◽

Akio Yoshimoto ◽

Kenichi Matsumoto ◽

Yuka Sukegawa-Takahashi ◽

...

Keyword(s):

Case Report ◽

Navigation System ◽

Intraoperative Navigation ◽

Eagle’S Syndrome ◽

Piezoelectric Surgery

Download Full-text

Laparoscopic distal pancreatectomy using intraoperative navigation system

HPB ◽

10.1016/j.hpb.2018.06.2095 ◽

2018 ◽

Vol 20 ◽

pp. S586

Author(s):

M. Yasunaga ◽

S. Kojima ◽

K. Mikagi ◽

R. Kawahara ◽

H. Sakai ◽

...

Keyword(s):

Distal Pancreatectomy ◽

Navigation System ◽

Laparoscopic Distal Pancreatectomy ◽

Intraoperative Navigation

Download Full-text

Maxillary repositioning using a CAD/CAM wafer and an intraoperative navigation system for bimaxillary orthognathic surgery using segmental Le Fort I osteotomy: A pilot study

Journal of Oral and Maxillofacial Surgery Medicine and Pathology ◽

10.1016/j.ajoms.2021.04.003 ◽

2021 ◽

Author(s):

Motohiro Tanaka ◽

Hitoshi Sato ◽

Takanobu Inada ◽

Atsutosi Yaso ◽

Hiroshi Ogura ◽

...

Keyword(s):

Pilot Study ◽

Navigation System ◽

Orthognathic Surgery ◽

Intraoperative Navigation ◽

Le Fort I Osteotomy ◽

Le Fort ◽

Bimaxillary Orthognathic Surgery ◽

Cad Cam ◽

Le Fort I

Download Full-text

Accuracy of Component Orientation and Leg Length Adjustment in Total Hip Arthroplasty Using Image-free Navigation

The Open Orthopaedics Journal ◽

10.2174/1874325001711011432 ◽

2017 ◽

Vol 11 (1) ◽

pp. 1432-1439 ◽

Cited By ~ 5

Author(s):

Yu Takeda ◽

Shigeo Fukunishi ◽

Shoji Nishio ◽

Yuki Fujihara ◽

Shinichi Yoshiya

Keyword(s):

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Navigation System ◽

Intraoperative Navigation ◽

Consecutive Series ◽

Leg Length ◽

Basic Study ◽

Total Hip ◽

Prosthetic Alignment ◽

Component Orientation

Purpose: The purpose of this study was to examine the accuracy of implant orientation and leg length in total hip arthroplasty (THA) with an image-free navigation system based on a comparison of the intraoperative navigation and postoperative CT evaluations. Material and Methods: A consecutive series of 111 patients (118 hips) who underwent THA using the current version of the image-free navigation system constituted the basic study population. Subsequently, a total of 101 patients (108 hips) meeting the inclusion and exclusion criteria were selected as study subjects for the analysis. THA was performed using an image-free navigation system that was capable of adjusting both the prosthetic position and leg length. Postoperative CT examination was performed for all study subjects, and the prosthetic position and leg length were measured on CT images using the image analysis software. Subsequently, the intraoperative navigation results and the corresponding values obtained from the postoperative CT measurements were compared to test the accuracy of the navigation system. Results: The average discrepancies between the intra- and postoperative assessments were 6.8°, 3.7°, and 5.7° for cup anteversion, cup inclination, and stem anteversion, respectively. The corresponding value in leg length averaged 4.1 mm. Conclusion: Average discrepancies between the intra- and postoperative measurements were less than 10° in all prosthetic alignment parameters and less than 5 mm in leg length. Intraoperative assessments with the use of the image-free navigation in THA could afford satisfactory result.

Download Full-text

THE APPLICATION OF NAVIGATION SYSTEM BASED ON THE AUGMENTED REALITY TECHNOLOGY FOR THE SURGICAL TREATMENT OF ORBITAL TUMORS

Novosti Khirurgii ◽

10.18484/2305-0047.2021.1.67 ◽

2021 ◽

Vol 29 (1) ◽

pp. 67-74

Author(s):

I.Y. Zherka ◽

◽

K.P. Zhiliayeva ◽

L.V. Naumenka ◽

Zh.V. Kaliadzich ◽

...

Keyword(s):

Surgical Treatment ◽

Augmented Reality ◽

Navigation System ◽

Preoperative Planning ◽

Surgical Intervention ◽

Intraoperative Navigation ◽

Orbital Tumors ◽

Bony Landmarks ◽

Augmented Reality Technology

Objective. To assess the effectiveness and feasibility of using an intraoperative navigation system based on augmented reality technology in the surgical treatment of intra-orbital tumors. Methods. Two patients with intra-orbital tumors were operated on with the application of the intraoperative navigation system. The virtual volumetric model was designed on the basis of files in the Digital Imaging and Communications in Medicine (DICOM) format, taking into account the fact that the quality of reconstruction depends on the quality of the input data and the accuracy of the reconstruction system. The required structures and parameters of color rendering for inclusion in the model were selected taking into consideration a specific clinical situation. Then the model was subjected to processing and modification to facilitate visualization. The prepared and optimized model was loaded into Microsoft HoloLens2 augmented reality glasses. In the preoperative period, using the possibilities of full screen image zoom and rotation of 3D model, the planning of the surgical intervention was carried out with the participation of all members of the surgical team. Intraoperatively, a 3D skull model was superimposed on the patient along bony landmarks (lower orbital edge and nasal bones). Surgical access and surgery were performed in the projection of the visualized tumor. Results. In the first case, the surgical planningas the preoperative method of pre-visualising asurgical intervention was used by means of the possibilities of model zooming and rotating; a detailed preoperative tumor assessment was made. In the second case, the navigation system was used in the process of diagnostic orbitotomy to facilitate the access to the tumor. Conclusion. Augmented reality allows highly detail visualization of individual anatomical models. Models are interactive, adaptive to real time and manipulating does not require the special skills. The technologies are flexible and can be programmed to perform a number of tasks (diagnostics, preoperative planning and intraoperative navigation). Models might be used for surgical training of surgeons to possess the skills. What this paper adds For the first time, the possibility of a navigation system application based on augmented reality technology in the surgical treatment of intra-orbital tumors has been shown. The technique has been found to be useful both in the preoperative planning and during surgical intervention.

Download Full-text