scholarly journals Three-Dimensional Radiographic Outcome of Free-Handed Flaplessly Placed Mini Dental Implants in Edentulous Maxillae after 2-Years Function

2020 ◽  
Vol 9 (7) ◽  
pp. 2120
Author(s):  
Luc Van Doorne ◽  
Pedram Gholami ◽  
Jan D’haese ◽  
Geert Hommez ◽  
Gert Meijer ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Dental Implants ◽  
Three Dimensional ◽  
Case Series ◽  
Invasive Procedure ◽  
Radiographic Evaluation ◽  
Invasive Treatment ◽  
Prospective Case Series ◽  
Cbct Analysis ◽  
Bone Condition

Background: Free-handed, flaplessly placed mini dental implants (MDIs) are a valuable, more affordable and minimally invasive treatment to support overdentures in fully edentulous jaws, especially for medically compromised patients. However, critical 3D radiographic evaluation is lacking. This multicenter prospective case series assessed clinical outcome and carried out 3D- cone-beam computerized tomography (CBCT) analysis of free-handed flaplessly placed one-piece maxillary MDIs by an experienced maxillofacial surgeon. Methods: Thirty-one patients suffering from an ill-fitting maxillary denture relating to compromised bone volume (as confirmed on CBCT), with a dentate mandible, were selected. They received 5–6 MDIs free-hand flaplessly placed and mentally guided with preoperative CBCT. Final connection and attachment activation took place six months later. After two years each implant was individually assessed with CBCT for perforations on eight sites. Implant survival, prosthetic failure, clinical stability and sinus/nasal complaints were registered after three years. Results: 32/185 (17.3%) MDIs failed during the provisional loading with non-activated attachments; 17 replacements in 10 patients were performed. Of the 170 actively loaded 170 MDIs, 82.3% survived and 27/31 prostheses (87%) were fully functional. In total 98/170 MDIs showed no perforation. Based on 1360 CBCT observations, 231 perforations (16.9%) were registered. Of most perforations 37 (25%) were observed at the apical tip and 37 were positioned (21%) into the sinus/nasal cavity, although without clinical complaints. Conclusions: Given the compromised population, the minimally invasive procedure and the low treatment cost involved, a failure rate of 17% is substantial, however clinically acceptable given the critical bone condition. However, even in experienced surgical hands, freehanded and flapless placement yield a high risk for implant perforation, although this did not necessarily lead to complications.

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 EMBOLIZATION OF RENAL ANGIOMYOLIPOMA: CASE SERIES

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Ghania Masood ◽  
Iffat Rehman ◽  
Saquib Khawar ◽  
Khurram A Mufti ◽  
Imran K. Niazi
Keyword(s):  
Minimally Invasive ◽  
Key Words ◽  
Case Series ◽  
Invasive Procedure ◽  
Standard Of Care ◽  
Renal Angiomyolipoma ◽  
Minimally Invasive Procedure ◽  
Benign Lesions ◽  
Current Standard ◽  
Spontaneous Haemorrhage

Renal angiomyolipomas (AML) are benign lesions usually left alone. However, lesions larger than 4 cm carry the risk of spontaneous haemorrhage and need treatment. Angiography and embolisation are the current standard of care particularly in patients with high operative risks. Angio-embolisation is a safe, minimally invasive procedure preserving maximum renal parenchyma, with the added advantage of preventing peri-procedural morbidity. Two cases of AML are presented in this case series. Key words: Angiomyolipoma, embolisation, renal 

Robotic-Assisted Retroperitoneoscopic Adrenalectomy: Making a Good Procedure Even Better

2013 ◽  
Vol 79 (1) ◽  
pp. 84-89 ◽  
Author(s):  
Paxton V. Dickson ◽  
Gillian C. Alex ◽  
Elizabeth G. Grubbs ◽  
Camilo Jimenez ◽  
Jeffrey E. Lee ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Perioperative Complications ◽  
Three Dimensional ◽  
Invasive Procedure ◽  
Robotic Assisted ◽  
Surgical Technology ◽  
Laparoscopic Operation ◽  
Retroperitoneoscopic Adrenalectomy ◽  
Postoperative Blood Transfusion ◽  
Minimally Invasive Adrenalectomy

Posterior retroperitoneoscopic adrenalectomy (PRA) is a minimally invasive procedure offering several advantages over a transabdominal laparoscopic operation. The three-dimensional optics and articulating instrumentation offered by current robotic surgical technology potentially improve this procedure. Robotic-assisted PRA (RA-PRA) was performed in patients meeting standard criteria for minimally invasive adrenalectomy. We prospectively collected demographic, clinical, perioperative, and pathologic data on patients undergoing RA-PRA. Thirty consecutive RA-PRAs were performed in 28 patients (26 unilateral and 2 bilateral). Indications for adrenalectomy included pheochromocytoma (8), hyperaldosteronism (3), hypercortisolism (8), oligometastases (5), and nonfunctional tumors (6). Mean tumor size was 3.8 ± 1.6 cm. Mean body mass index was 30.7 ± 6.5 kg/m2. Mean operative time was 154 ± 43 minutes for unilateral total adrenalectomy. Four patients with multiple endocrine neoplasia Type 2A-associated pheochromocytomas underwent cortical-preserving procedures. Three patients experienced perioperative complications (one pneumothorax, one urinary retention, one required postoperative blood transfusion). No patient required conversion to an open procedure. Robotic surgical technology is an excellent complement to retroperitoneoscopic adrenalectomy. The three-dimensional view and ergonomic advantages of a robotic procedure promote better visualization and a more flexible approach to dissection. We believe these features may optimize the ability to maintain a vascularized remnant during minimally invasive cortical-sparing adrenalectomy.

scholarly journals Minimally Invasive Treatment of Edentulous Maxillae with Overdenture Fully Supported by a Cad/Cam Titanium Bar with a Low-Profile Attachment Screwed on Four or Six Implants: A Case Series

Prosthesis ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 53-64 ◽  
Author(s):  
Marco Tallarico ◽  
Gabriele Cervino ◽  
Roberto Scrascia ◽  
Umberto Uccioli ◽  
Aurea Lumbau ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Treatment Option ◽  
Soft Tissues ◽  
Case Series ◽  
Optimal Number ◽  
Invasive Treatment ◽  
Low Profile ◽  
Atrophic Maxilla ◽  
Cad Cam ◽  
Implant Overdenture

Rehabilitation of atrophic maxilla still remains a challenge. Fixed implant-supported restorations have become more predictable in the last years; nevertheless, technical and biological complications still occur. Removable overdenture fully supported by a CAD/CAM titanium bar seems to be a viable treatment option for the rehabilitation of completely edentulous patients with a high degree of bone resorption. In these clinical cases, the soft tissues of the lower third of the face need to be respected, and a fixed-removable solution is the only option to have good hygiene control. Nevertheless, there is no consensus about the optimal number and position of the implants. A total of six adult patients were recruited and treated with an overdenture fully supported by a CAD/CAM titanium bar and low-profile attachment, screwed on four or six implants. A detailed step-by-step description of the procedures was presented. Overall, all the patients were successful treated with no relevant complications. With the limitations of this case series, maxillary implant overdenture fully supported by four or six implants seems to be a safer treatment option for the minimally invasive rehabilitation of atrophic maxillae, regardless of the number of implants.

scholarly journals P.138 Minimally invasive treatment of syringomyelia using tubular retractors

2018 ◽  
Vol 45 (s2) ◽  
pp. S53-S53
Author(s):  
K Yang ◽  
M Sourour ◽  
N Zagzoog ◽  
K Reddy
Keyword(s):  
Minimally Invasive ◽  
Chart Review ◽  
Case Series ◽  
Retrospective Chart Review ◽  
Senior Author ◽  
Invasive Technique ◽  
Single Center ◽  
Invasive Treatment ◽  
Multiple Modalities ◽  
Subarachnoid Spaces

Background: Multiple modalities have been used in the treatment of syringomyelia, including direct drainage, shunting into peritoneal, pleural and subarachnoid spaces. The authors report their experience of surgical treatment of syringomyelia in a minimally invasive fashion. Methods: We conducted a single-center retrospective chart review on our syringomyelia cases treated with minimally invasively using Metrx Quadrant retractor system since January 2011. Lateral fluoroscopy was used to guide the placement of the retractor onto the lamina of the corresponding level. This was followed by laminectomy and a small durotomy. Once the syrinx cavity was identified and the proximal end of the tubing was inserted into the syrinx cavity, the tubing was tunneled into the pleural incision subcutaneously. Insertion of the pleural end of the shunt was performed under the microscope, with removal of a small amount of the rib at its upper edge. Results: 10 procedures were performed in 7 patients by the senior author. Etiologies of syringomyelia included Chiari malformation, trauma, diastematomyelia and kyphoscoliosis. All patients improved neurologically. No patients had immediate postoperative complications. One patient underwent two revisions of syringopleural shunts due to multilobulated nature of syringomyelia. Conclusions: Our case series presents a novel, minimally invasive technique for shunting of syringomyelia with results comparable to open procedures.

scholarly journals 3D printed patient-specific aortic root models with internal sensors for minimally invasive applications

2020 ◽  
Vol 6 (35) ◽  
pp. eabb4641 ◽  
Author(s):  
Ghazaleh Haghiashtiani ◽  
Kaiyan Qiu ◽  
Jorge D. Zhingre Sanchez ◽  
Zachary J. Fuenning ◽  
Priya Nair ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Aortic Root ◽  
Three Dimensional ◽  
Sensor Arrays ◽  
Invasive Procedure ◽  
Patient Specific ◽  
Anatomical Site ◽  
Transcatheter Aortic Valve ◽  
Critical Regions

Minimally invasive surgeries have numerous advantages, yet complications may arise from limited knowledge about the anatomical site targeted for the delivery of therapy. Transcatheter aortic valve replacement (TAVR) is a minimally invasive procedure for treating aortic stenosis. Here, we demonstrate multimaterial three-dimensional printing of patient-specific soft aortic root models with internally integrated electronic sensor arrays that can augment testing for TAVR preprocedural planning. We evaluated the efficacies of the models by comparing their geometric fidelities with postoperative data from patients, as well as their in vitro hemodynamic performances in cases with and without leaflet calcifications. Furthermore, we demonstrated that internal sensor arrays can facilitate the optimization of bioprosthetic valve selections and in vitro placements via mapping of the pressures applied on the critical regions of the aortic anatomies. These models may pave exciting avenues for mitigating the risks of postoperative complications and facilitating the development of next-generation medical devices.

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