Mini Fronto-Orbital Approach: “Window Opening” Towards the Superomedial Orbit – A Virtual Reality-Planned Anatomic Study

2020 ◽  
Vol 19 (3) ◽  
pp. 330-340 ◽  
Author(s):  
Carmine Antonio Donofrio ◽  
Jody Filippo Capitanio ◽  
Lucia Riccio ◽  
Aalap Herur-Raman ◽  
Anthony J Caputy ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Minimally Invasive ◽  
Three Dimensional ◽  
Skin Incision ◽  
Surgical Approaches ◽  
Target Area ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Window Opening ◽  
Dissection Technique

Abstract BACKGROUND Surgical approaches to the orbit are challenging and require combined multispecialist skills. Considering its increasing relevance in neurosurgical practice, keyhole surgery could be also applied to this field. However, mastering a minimally invasive approach necessitates an extended learning curve. For this reason, virtual reality (VR) can be effectively used for planning and training in this demanding surgical technique. OBJECTIVE To validate the mini fronto-orbital (mFO) approach to the superomedial orbit, using VR planning and specimen dissections, conjugating the principles of skull base and keyhole neurosurgery. METHODS Three-dimensional measurements were performed thanks to Surgical Theater (Surgical Theater© LLC), and then, simulated craniotomies were implemented on cadaver specimens. RESULTS The mFO approach affords optimal exposure and operability in the target area and reduced risks of surrounding normal tissue injuries. The eyebrow skin incision, the minimal soft-tissue retraction, the limited temporalis muscle dissection and the single-piece craniotomy, as planned with VR, are the key elements of this minimally invasive approach. Furthermore, the “window-opening” cotton-tip intraorbital dissection technique, based on widening surgical corridors between neuromuscular bundles, provides a safe orientation and a deep access inside the orbit, thereby significantly limiting the risk of jeopardizing neurovascular structures. CONCLUSION The mFO approach associated to the window-opening dissection technique can be considered safe, effective, suitable, and convenient for treating lesions located in the superomedial orbital aspect, up to the orbital apex.

Accuracy of Patient-Specific 3D Printed Drill Guides in the Placement of a Canine Coxofemoral Toggle Pin through a Minimally Invasive Approach

2020 ◽  
Author(s):  
Brett G. Darrow ◽  
Kyle A. Snowdon ◽  
Adrien Hespel
Keyword(s):  
Minimally Invasive ◽  
Three Dimensional ◽  
Bone Tunnel ◽  
Patient Specific ◽  
Exit Point ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Post Procedure ◽  
Drill Guide ◽  
Ct Data

Abstract Objective The aim of this study was to evaluate the accuracy of patient-specific three-dimensional printed drill guides (3D-PDG) for the placement of a coxofemoral toggle via a minimally invasive approach. Materials and Methods Pre-procedure computed tomography (CT) data of 19 canine cadaveric hips were used to design a cadaver-specific 3D-PDG that conformed to the proximal femur. Femoral and acetabular bone tunnels were drilled through the 3D-PDG, and a coxofemoral toggle pin was placed. The accuracy of tunnel placement was evaluated with post-procedure CT and gross dissection. Results Coxofemoral toggle pins were successfully placed in all dogs. Mean exit point translation at the fovea capitis was 2.5 mm (0.2–7.5) when comparing pre- and post-procedure CT scans. Gross dissection revealed the bone tunnel exited the fovea capitis inside (3/19), partially inside (12/19) and outside of (4/19) the ligament of the head of the femur. Placement of the bone tunnel through the acetabulum was inside (16/19), partially inside (1/19) and outside (2/19) of the acetabular fossa. Small 1 to 2 mm articular cartilage fragments were noted in 10 of 19 specimens. Clinical Significance Three-dimensional printed drill guide designed for coxofemoral toggle pin application is feasible. Errors are attributed to surgical execution and identification of the borders of the fovea capitis on CT data. Future studies should investigate modifications to 3D-PDG design and methods. Three-dimensional printed drill guide for coxofemoral toggle pin placement warrants consideration for use in select clinical cases of traumatic coxofemoral luxation.

scholarly journals Method of forming a pancreatogastric anastomosis after pancreatoduodenal resection

2021 ◽  
Vol 26 (4) ◽  
pp. 97-104
Author(s):  
V. Ya. Lishchishin ◽  
A. G. Barishev ◽  
A. N. Petrovsky ◽  
A. N. Lishchenko ◽  
A. Y. Popov ◽  
...  
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Invasive Surgery ◽  
Open Surgery ◽  
Surgical Approaches ◽  
Open Approach ◽  
Malignant Tumours ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Pancreatic Fistulas

Aim. To evaluate the reproducibility and safety of the developed pancreatogastric anastomosis with various surgical approaches during pancreatoduodenectomy.Materials and methods. The experience of surgical treatment of 47 patients with malignant tumours of the periampullary zone, who underwent pancreatoduodenectomy, was considered. The proposed variant of anastomose was performed to 14 (29.8%) patients: in 7 cases with a minimally invasive approach to perform pancreatoduodenectomy; and in 7 cases with an open approach. To compare retrospectively 33 (70.2%) patients who underwent pancreatogastric anastomosis according to the Bassi technique: 9 – with minimally invasive surgery, 24 – with open surgery. The frequency of pancreatic fistulas, the number of repeated interferences, and hospital mortality were taken into account.Results. A significant advantage of the new method of forming an anastomosis in the duration of the operation was noted in comparison with the Bassi technique. There were no statistically significant differences in blood loss while various types of anastomoses (p > 0.05). When using the proposed technique, the formation of pancreatic fistulas was not revealed. The development of pancreatic fistula was observed in 4 (16.7%) patients after open surgery and in 7 (77.8%) patients after minimally invasive Bassi anastomose formation. Reoperations were performed after open surgery in 3 (12.5%) cases and in 4 (44.4%) cases of minimally invasive surgery according to the Bassi technique. There were 2 (22.2%) deaths in the minimally invasive group.Conclusion. The proposed pancreatogastric anastomosis is applicable in clinical practice. This method allows to create relatively fast and less challenging anastomosis, including with a minimally invasive approach. The use of this technique makes it possible to reduce mortality and postoperative complications in patients with a “complex” pancreas.

Minimally Invasive Approach for Dorsal Arachnoid Web: 2-Dimensional Operative Video

2021 ◽  
Author(s):  
Corentin Dauleac ◽  
Henri-Arthur Leroy ◽  
Richard Assaker
Keyword(s):  
Spinal Cord ◽  
Minimally Invasive ◽  
Skin Incision ◽  
Minimally Invasive Approach ◽  
Tubular Retractor ◽  
Invasive Approach ◽  
Spinal Cord Herniation ◽  
Muscle Sparing ◽  
Magnetic Resonance Imaging Mri ◽  
Spinal Cord Decompression

Abstract A 67-yr-old patient presented with severe paraparesis and lower limb spasticity. The spinal cord magnetic resonance imaging (MRI) revealed the “scalpel sign” 1,2 at the T7 level, suggesting a diagnosis of a dorsal arachnoid web. This video demonstrates a microsurgical technique for the excision of a dorsal arachnoid web with a minimally invasive approach. A paramedian skin incision, understanding the muscular aponeurosis, was performed from T7 to T8. Then, we inserted the tubular dilators until the lamina, to perform a muscle-sparing approach. An expandable tubular retractor of adequate length was passed over the widest dilator and docked into place along the subperiosteal plane. The T7 lamina was drilled, and the resection of the superior and inferior adjacent spine levels was completed with a rongeur. Additional contralateral bone resection was performed after tubular retractor tilt to the midline.3 After dura mater opening, it was carefully suspended and the dorsal arachnoid leaflet was cut to drain the dorsolateral and lateral spinal cisterns.4 The dorsal arachnoid web was, first, disconnected from its lateral anchorages. It was then gently removed with microsurgical forceps, to help its microdissection from the spinal cord surface. At this step, peculiar attention was paid to limit the traction or displacements of the spinal cord and surrounding vessels. Once the dorsal arachnoid web was removed, the quality of the spinal cord decompression was confirmed by its re-expansion. In conclusion, the minimally invasive approach is a safe and appropriate technique for dorsal arachnoid web excision.2,5,6-7  The patient gave her informed and signed consent for the writing and publication of this article.  Image at 1:00 reused with permission from Castelnovo G et al, Spontaneous transdural spinal cord herniation, Neurology, 2014;82(14):1290.

scholarly journals Minimally invasive surgical repair for unroofed coronary sinus syndrome directed by three-dimensional transesophageal echocardiography

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Kazuma Handa ◽  
Shinya Fukui ◽  
Mutsunori Kitahara ◽  
Yumi Kakizawa ◽  
Hiroyuki Nishi
Keyword(s):  
Minimally Invasive ◽  
Transesophageal Echocardiography ◽  
Coronary Sinus ◽  
Three Dimensional ◽  
Mitral Insufficiency ◽  
Minimally Invasive Approach ◽  
Residual Shunt ◽  
Invasive Approach ◽  
Unroofed Coronary Sinus ◽  
Unroofed Coronary Sinus Syndrome

Abstract Background The recent remarkable development of cardiac imaging technology for unroofed coronary sinus syndrome has led to accurate preoperative diagnosis. We report a case of unroofed coronary sinus syndrome repaired via a minimally invasive approach, under the excellent command of three-dimensional transesophageal echocardiography. Case presentation A 77-year-old woman with hypertension was admitted for aggravation of bilateral leg edema and diagnosed with type III unroofed coronary sinus syndrome with Qp/Qs ratio of 1.6:1. The unroofed portion was detected at the atrial side between P2 and P3 of posterior mitral leaflet by preoperative three-dimensional transesophageal echocardiography. Right minithoracotomy was performed at the fourth intercostal space and cardiopulmonary bypass routinely established. Right atriotomy and left atriotomy incisions were made under antegrade cardioplegic arrest. The unroofed portion was revealed at the same location by preoperative transesophageal echocardiography and was clearly recognized only by endoscopy, not by direct vision. It was repaired by direct running suture under endoscopic visualization. We observed no blood cardioplegia leakage or mitral insufficiency, which was also confirmed by postoperative transesophageal echocardiography. The patient’s postoperative course was uneventful and she was discharged home 14 days after surgery without any residual shunt. Conclusions Successful repair of unroofed coronary sinus syndrome was safely and effectively achieved by a minimally invasive approach supported by preoperative three-dimensional transesophageal echocardiography.

Mini-Bentall: An Interesting Approach for Selected Patients

2017 ◽  
Vol 12 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Elisa Mikus ◽  
Antonio Micari ◽  
Simone Calvi ◽  
Maria Salomone ◽  
Marco Panzavolta ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Minimally Invasive ◽  
Valve Replacement ◽  
Elective Surgery ◽  
Skin Incision ◽  
Ascending Aorta ◽  
Minimally Invasive Approach ◽  
Safe Alternative ◽  
Invasive Approach

Objective Minimally invasive surgery through an upper hemisternotomy for aortic valve replacement has become the routine approach with excellent results. Actually, the same minimally invasive access is used for complex ascending aorta procedures only in few centers. We report our experience with minimally invasive approach for aortic valve and ascending aorta replacement using Bentall technique. Methods From January 2010 to November 2015, a total of 238 patients received ascending aorta and aortic valve replacement using Bentall De Bono procedure at our institution. Low- and intermediate-risk patients underwent elective surgery with a minimally invasive approach. The “J”-shaped partial upper sternotomy was performed through a 6-cm skin incision from the notch to the third right intercostal space. Patients who had previous cardiac surgery or affected by active endocarditis were excluded. The study included 53 patients, 44 male (83 %) with a median age of 63 years [interquartile range (IQR), 51–73 years]. A bicuspid aortic valve was diagnosed in 27 patients (51%). Results A biological Bentall using a pericardial Mitroflow or Crown bioprosthesis implanted in a Valsalva graft was performed in 49 patents. The remaining four patients were treated with a traditional mechanical conduit. Median cardiopulmonary bypass time and median cross-clamp time were respectively 84 (IQR, 75–103) minutes and 73 (IQR, 64–89) minutes. Hospital mortality was zero as well as 30-day mortality. Median intensive care unit and hospital stay were 1.9 and 8 days, respectively. The study population compared with patients treated with standard full sternotomy and similar preoperative characteristics showed similar results in terms of postoperative outcomes with a slightly superiority of minimally invasive group mainly regarding operative times, incidence of atrial fibrillation, and postoperative ventilation times. Conclusions A partial upper sternotomy is considered a safe option for aortic valve replacement. Our experience confirms that a minimally invasive approach using a partial upper J-shaped sternotomy can be a safe alternative approach to the standard in selected patients presenting with complex aortic root pathology.

scholarly journals Minimally Invasive Approaching in Hip Surgery—An Anatomical Investigation of 20 Specimens

Medicina ◽  
2021 ◽  
Vol 57 (11) ◽  
pp. 1283
Author(s):  
Clemens Schopper ◽  
Hannes Traxler ◽  
Bernhard Schauer ◽  
Günter Hipmair ◽  
Tobias Gotterbarm ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Hip Joint ◽  
Skin Incision ◽  
The Body ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Minimally Invasive Approach ◽  
Main Trunk ◽  
Invasive Approach ◽  
Femoral Cutaneous Nerve

Background and objectives: Based on the preparation of 20 formalin-fixed anatomical cadavers, the feasibility of the anterior, minimally invasive approach to the hip joint was investigated in each side of the body. The hypothesis of the study was that the Lateral Femoral Cutaneous Nerve can be spared under the use of this approach. Materials and Methods: The anterior approach to the hip was performed via an incision of 8 cm. The position of the nerve was noticed in relation to the skin incision, and the distance was measured in millimeters. The nerves main, gluteal and femoral trunk were distinguished and investigated for injury. Results: No injury of the main trunk was noticed. The average distance of the main trunk to the skin incision was 14.9 and 15.05 mm in the medial direction, respectively (p < 0.001). Injury of the gluteal branch has to be considered at an overall rate of 40%. Conclusions: The anterior, minimally invasive approach to the hip joint can be performed without injury of the Lateral Femoral Cutaneous Nerve.

A Contemporary Approach to Reoperative Aortic Valve Surgery

2017 ◽  
Vol 12 (3) ◽  
pp. 197-200
Author(s):  
Deane E. Smith ◽  
Michael S. Koeckert ◽  
Patrick F. Vining ◽  
Elias A. Zias ◽  
Eugene A. Grossi ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Minimally Invasive ◽  
Preoperative Evaluation ◽  
Valve Surgery ◽  
Surgical Approaches ◽  
Aortic Valve Surgery ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Valvular Surgery ◽  
Effective Manner

Objective Although the benefits of minimally invasive valvular surgery are well established, the applicability of extending these techniques to reoperative aortic valve surgery is unknown. We evaluated our experience with a minimally invasive approach to this patient population. Methods From January 2010 to September 2015, 21 patients underwent reoperative isolated aortic valve replacement via a minimally invasive approach by a single surgeon. All patients had preoperative evaluation with computerized tomography and coronary catheterization. Surgical approaches were right anterior thoracotomy (6/21) or upper hemisternotomy (15/21). Central aortic cannulation was preferred with femoral artery cannulation used in four patients (19%). In patients with left internal mammary artery (LIMA) grafts, no attempt to dissect or occlude the graft was made. Cold blood cardioplegia was administered antegrade (12/21) or retrograde (9/21); systemic cooling with a mean low temperature of 27.5 °C was employed. Results Mean age was 75.1 years with a range from 33 to 92 years, and 67% (14/21) were male. All procedures were completed with a minimally invasive approach. Mean ± SD cross-clamp time was 51.5 ± 9.2 minutes. Fourteen patients had patent LIMA grafts. No aortic, LIMA, or cardiac injuries occurred. There were no hospital deaths nor occurrences of perioperative myocardial infarction, stroke, wound infection, renal failure, or endocarditis/sepsis. One patient required a reoperation for bleeding. Sixty-two percent of patients were discharged to home; mean ± SD length of stay was 6 ± 3 days. Conclusions With appropriate preoperative evaluation and careful surgical planning, a minimally invasive approach to reoperative aortic valve surgery can be performed in a safe and effective manner.

Minimally Invasive Approach for Wilms Tumor Treatment in a Small Child - A Case Report

Urology ◽  
2020 ◽  
Author(s):  
Alexandre Azevedo Ziomkowski ◽  
João Rafael Silva Simões Estrela ◽  
Nilo Jorge Carvalho Leão Barretto ◽  
Nilo César Leão Barretto
Keyword(s):  
Case Report ◽  
Minimally Invasive ◽  
Wilms Tumor ◽  
Small Child ◽  
Tumor Treatment ◽  
Minimally Invasive Approach ◽  
Invasive Approach
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