Optimizing Pre-surgical Planning for a Complex Myomectomy Using a Patient-Specific Three-Dimensional Printed Anatomical Model

The purpose of this study was to investigate the usage of an anatomical model to improve surgical planning of a complex schwannoma resection. As advancements in additive manufacturing continue to prosper, new applications of this valuable technology are being implemented in the medical field. One of the most recent applications has been in the development of patient-specific anatomical models for unique clinical education as well as for preoperative planning. In this case, a multidisciplinary team with expertise in research, three-dimensional printing, and medicine was formed to develop a three-dimensional printed model that could be used to help plan the reduction of a tumor from the cervical spine of a pediatric patient. Image segmentation and stereolithography creation were accomplished using Mimics and 3-matic, respectively. Models were developed on two different printer types to view different aspects of the region of interest. Reports from the operating surgeon indicated that the model was instrumental in the planning procedures of the operation and reducing operation time.

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The use of three-dimensional printing technology in orthopaedic surgery

Journal of Orthopaedic Surgery ◽

10.1177/2309499016684077 ◽

2017 ◽

Vol 25 (1) ◽

pp. 230949901668407 ◽

Cited By ~ 18

Author(s):

Tak Man Wong ◽

Jimmy Jin ◽

Tak Wing Lau ◽

Christian Fang ◽

Chun Hoi Yan ◽

...

Keyword(s):

Orthopaedic Surgery ◽

Surgical Planning ◽

Three Dimensional ◽

Physical Models ◽

Advanced Technology ◽

Patient Specific ◽

Printing Technology ◽

Three Dimensional Printing ◽

Facial Surgery ◽

Patient Specific Instruments

Three-dimensional (3-D) printing or additive manufacturing, an advanced technology that 3-D physical models are created, has been wildly applied in medical industries, including cardiothoracic surgery, cranio-maxillo-facial surgery and orthopaedic surgery. The physical models made by 3-D printing technology give surgeons a realistic impression of complex structures, allowing surgical planning and simulation before operations. In orthopaedic surgery, this technique is mainly applied in surgical planning especially revision and reconstructive surgeries, making patient-specific instruments or implants, and bone tissue engineering. This article reviews this technology and its application in orthopaedic surgery.

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The effectiveness of preoperative assessment using a patient-specific three-dimensional pseudoarticulation model for minimally invasive posterior resection in a patient with Bertolotti’s syndrome: a case report

Journal of Medical Case Reports ◽

10.1186/s13256-020-02635-y ◽

2021 ◽

Vol 15 (1) ◽

Author(s):

Kensuke Shinonara ◽

Michiya Kaneko ◽

Ryo Ugawa ◽

Shinya Arataki ◽

Kazuhiro Takeuchi

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Surgical Planning ◽

Three Dimensional ◽

Young Patients ◽

Patient Specific ◽

Low Back ◽

3D Navigation ◽

Plaster Model ◽

Lumbosacral Transitional Vertebrae

Abstract Background Bertolotti’s syndrome is widely known to cause low back pain in young patients and must be considered as a differential diagnosis. Its treatment such as conservative therapy or surgery remains controversial. Surgical procedure is recommended for intractable low back pain. The three-dimensional (3D) lumbosacral transitional vertebrae anatomy should be completely understood for a successful surgery. Using an intraoperative 3D navigation and preoperative preliminary surgical planning with a patient-specific 3D plaster model contribute for safe surgery and good outcome. Case presentation A case of a 22-year-old Japanese male patient with intractable left low back pain due to lumbosacral transitional vertebrae with Bertolotti’s syndrome. The symptom resisted the conservative treatment, and anesthetic injection at pseudoarticulation only provided a short-term pain relief. Posterior resection using intraoperative three-dimensional (3D) navigation has been performed through microendoscopic view. Pseudoarticulation was totally and successfully resected in a safe manner. Conclusions Preoperative surgical planning and rehearsal using a patient-specific 3D plaster model was greatly useful and effective for surgeons in performing accurate and safe pseudoarticulation resection.

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Cardiac patient–specific three-dimensional models as surgical planning tools

Surgery ◽

10.1016/j.surg.2018.11.022 ◽

2020 ◽

Vol 167 (2) ◽

pp. 259-263 ◽

Cited By ~ 4

Author(s):

Michael G. Bateman ◽

William K. Durfee ◽

Tinen L. Iles ◽

Cindy M. Martin ◽

Kenneth Liao ◽

...

Keyword(s):

Surgical Planning ◽

Three Dimensional ◽

Cardiac Patient ◽

Patient Specific ◽

Planning Tools ◽

Dimensional Models ◽

Three Dimensional Models

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Three-Dimensional Visualization of Subdural Electrodes for Presurgical Planning

Operative Neurosurgery ◽

10.1227/neu.0b013e31820783ba ◽

2011 ◽

Vol 68 (suppl_1) ◽

pp. ons152-ons161 ◽

Cited By ~ 6

Author(s):

Peter S. LaViolette ◽

Scott D. Rand ◽

Manoj Raghavan ◽

Benjamin M. Ellingson ◽

Kathleen M. Schmainda ◽

...

Keyword(s):

Surgical Planning ◽

Three Dimensional ◽

Clinical Problem ◽

Accurate Method ◽

3D Models ◽

Patient Specific ◽

Computed Tomographic ◽

Subdural Electrodes ◽

Accurate Localization ◽

Intracranial Electrode

Abstract BACKGROUND: Accurate localization and visualization of subdural electrodes implanted for intracranial electroencephalography in cases of medically refractory epilepsy remains a challenging clinical problem. OBJECTIVE: We introduce a technique for creating accurate 3-dimensional (3D) brain models with electrode overlays, ideal for resective surgical planning. METHODS: Our procedure uses postimplantation magnetic resonance imaging (MRI) and computed tomographic (CT) imaging to create 3D models of compression-affected brain combined with intensity-thresholded CT-derived electrode models using freely available software. Footprints, or “shadows,” beneath electrodes are also described for better visualization of sulcus-straddling electrodes. Electrode models were compared with intraoperative photography for validation. RESULTS: Realistic representations of intracranial electrode positions on patient-specific postimplantation MRI brain renderings were reliably created and proved accurate when compared with photographs. Electrodes placed interhemispherically were also visible with our rendering technique. Electrode shadows were useful in locating electrodes that straddle sulci. CONCLUSION: We present an accurate method for visualizing subdural electrodes on brain compression effected 3D models that serves as an ideal platform for surgical planning.

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PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability.

10.21203/rs.3.rs-145748/v1 ◽

2021 ◽

Author(s):

Giovanni Badiali ◽

Mirko Bevini ◽

Ottavia Lunari ◽

Elisa Lovero ◽

Federica Ruggiero ◽

...

Keyword(s):

Orthognathic Surgery ◽

Surgical Planning ◽

Three Dimensional ◽

Patient Specific ◽

Pitch Range ◽

Surgery Patient ◽

Novel Approach ◽

Mandibular Position ◽

3D Printed

Abstract In orthognathic surgery, patient-specific osteosynthesis implants (PSIs) represent a novel approach for the reproduction of the virtual surgical planning on the patient. The aim of this study is to analyse the quality of maxillo-mandibular positioning using a hybrid mandible-first mandibular-PSI guided procedure on twenty-two patients while the upper maxilla was fixed using manually-bent stock titanium miniplates. The virtual surgical plan was used to guide the design of PSIs and positioning guides, which were then 3D printed using biocompatible materials. A CBCT scan was performed one month after surgery and postoperative facial skeletal models were segmented for comparison against the surgical plan. A three-dimensional cephalometric analysis was carried out on both planned and obtained anatomies. A Spearman correlation matrix was computed on the calculated discrepancies, in order to achieve a more comprehensive description of maxillo-mandibular displacement. Intraoperatively, all PSIs were successfully applied. The procedure was found to be accurate in planned maxillo-mandibular positioning reproduction, while maintaining a degree of flexibility to allow for aesthetics-based verticality correction in a pitch range between-5.31 and +1.79 mm. Such correction did not significantly affect the achievement of planned frontal symmetry.

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Three-dimensional patient-specific cardiac model for surgical planning in Nikaidoh procedure

Cardiology in the Young ◽

10.1017/s1047951114000742 ◽

2014 ◽

Vol 25 (4) ◽

pp. 698-704 ◽

Cited By ~ 54

Author(s):

Israel Valverde ◽

Gorka Gomez ◽

Antonio Gonzalez ◽

Cristina Suarez-Mejias ◽

Alejandro Adsuar ◽

...

Keyword(s):

Ventricular Septal Defect ◽

Rapid Prototyping ◽

Surgical Planning ◽

Septal Defect ◽

Three Dimensional ◽

Magnetic Resonance Images ◽

Patient Specific ◽

Complex Congenital Heart Disease ◽

Cardiac Model ◽

Cardiovascular Models

AbstractPurpose: To explore the use of three-dimensional patient-specific cardiovascular models using rapid prototyping techniques (fused deposition modelling) to improve surgical planning in patients with complex congenital heart disease. Description: Rapid prototyping techniques are used to print accurate three-dimensional replicas of patients' cardiovascular anatomy based on magnetic resonance images using computer-aided design systems. Models are printed using a translucent polylactic acid polymer. Evaluation: As a proof of concept, a model of the heart of a 1.5-year-old boy with transposition of the great arteries, ventricular septal defect and pulmonary stenosis was constructed to help planning the surgical correction. The cardiac model allowed the surgeon to evaluate the location and dimensions of the ventricular septal defect as well as its relationship with the aorta and pulmonary artery. Conclusions: Cardiovascular models constructed by rapid prototyping techniques are extremely helpful for planning corrective surgery in patients with complex congenital malformations. Therefore they may potentially reduce operative time and morbi-mortality.

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