Minimally Invasive Atlantoaxial Fusion

Neurosurgery ◽  
2010 ◽  
Vol 66 (suppl_3) ◽  
pp. A193-A197 ◽  
Author(s):  
Langston T. Holly ◽  
Robert E. Isaacs ◽  
Anthony K. Frempong-Boadu
Keyword(s):  
Minimally Invasive ◽  
Intraoperative Complications ◽  
Surgical Techniques ◽  
Long Term Results ◽  
Os Odontoideum ◽  
Tubular Retractor ◽  
Estimated Blood Loss ◽  
Atlantoaxial Fixation ◽  
The Mean ◽  
Age Range

Abstract BACKGROUND C1–C2 fusion has significantly advanced from predominantly wiring/cable modalities to more biomechanically stable screw-rod techniques. Minimally invasive surgical techniques represents the most recent modification of atlantoaxial fixation. The indications, rationale, and surgical technique of this novel procedure are described. METHODS Six patients requiring C1–C2 fusion (5 type II odontoid fractures and 1 os odontoideum) underwent minimally invasive C1–C2 fusion over a 2-year period. The cohort consisted of 5 men and 1 woman with a mean age of 51 years (age range, 39–64 y). All 6 patients underwent bilateral segmental atlantoaxial fixation using an expandable tubular retractor. RESULTS The mean follow-up time was 32 months (age range, 24–46 mo) There were no intraoperative complications, and the mean estimated blood loss was 100 mL. Solid fusion was achieved in all 6 patients, without pathological motion on dynamic studies. Postoperative computed tomographic images showed no hardware malposition in the scanned patients (4 of the 6 patients). CONCLUSIONS Placement of C1 and C2 instrumentation using minimally invasive techniques is technically feasible. Because the instrumentation and the means of obtaining arthrodesis do not differ substantively from the standard approach, we would not anticipate long-term results to be different from those of an open procedure, apart from the approach-related morbidity.

Management of intended durotomy in minimally invasive intradural spine surgery

2014 ◽  
Vol 21 (2) ◽  
pp. 279-285 ◽  
Author(s):  
Lee A. Tan ◽  
Ippei Takagi ◽  
David Straus ◽  
John E. O'Toole
Keyword(s):  
Blood Loss ◽  
Minimally Invasive ◽  
Length Of Hospital Stay ◽  
Bed Rest ◽  
Tubular Retractor ◽  
Specific Patient ◽  
Dural Closure ◽  
Estimated Blood Loss ◽  
The Mean ◽  
Operative Notes

Object Minimally invasive surgery (MIS) has been increasingly used for the treatment of various intradural spinal pathologies in recent years. Although MIS techniques allow for successful treatment of intradural pathology, primary dural closure in MIS can be technically challenging due to a limited surgical corridor through the tubular retractor system. The authors describe their experience with 23 consecutive patients from a single institution who underwent MIS for intradural pathologies, along with a review of pertinent literature. Methods A retrospective review of a prospectively collected surgical database was performed to identify patients who underwent MIS for intradural spinal pathologies between November 2006 and July 2013. Patient demographics, preoperative records, operative notes, and postoperative records were reviewed. Primary outcomes include operative duration, estimated blood loss, length of bed rest, length of hospital stay, and postoperative complications, which were recorded prospectively. Results Twenty-three patients who had undergone MIS for intradural spinal pathologies during the study period were identified. Fifteen patients (65.2%) were female and 8 (34.8%) were male. The mean age at surgery was 54.4 years (range 30–74 years). Surgical pathologies included neoplastic (17 patients), congenital (3 patients), vascular (2 patients), and degenerative (1 patient). The most common spinal region treated was lumbar (11 patients), followed by thoracic (9 patients), cervical (2 patients), and sacral (1 patient). The mean operative time was 161.1 minutes, and the mean estimated blood loss was 107.2 ml. All patients were allowed full activity less than 24 hours after surgery. The median length of stay was 78.2 hours. Primary sutured dural closure was achieved using specialized MIS instruments with adjuvant fibrin sealant in all cases. The rate of postoperative headache, nausea, vomiting, and diplopia was 0%. No case of cutaneous CSF fistula or symptomatic pseudomeningocele was identified at follow-up, and no patient required revision surgery. Conclusions Primary dural closure with early mobilization is an effective strategy with excellent clinical outcomes in the use of MIS techniques for intradural spinal pathology. Prolonged bed rest after successful primary dural closure appears unnecessary, and the need for watertight dural closure should not prevent the use of MIS techniques in this specific patient population.

Nonendoscopic, minimally invasive calvarial vault remodeling without postoperative helmeting for sagittal synostosis

2012 ◽  
Vol 9 (3) ◽  
pp. 222-227 ◽  
Author(s):  
Ian S. Mutchnick ◽  
Todd A. Maugans
Keyword(s):  
Length Of Stay ◽  
Minimally Invasive ◽  
Intraoperative Complications ◽  
Cohort Analysis ◽  
Sagittal Synostosis ◽  
Estimated Blood Loss ◽  
Significant Difference ◽  
Significant Correction ◽  
The Mean

Object Multiple surgical procedures have been described for the management of isolated nonsyndromic sagittal synostosis. Minimally invasive techniques have been recently emphasized, but these techniques necessitate the use of an endoscope and postoperative helmeting. The authors assert that a safe and effective, more “minimalistic” approach is possible, avoiding the use of endoscopic visualization and routine postoperative application of a cranial orthosis. Methods A single-institution cohort analysis was performed on 18 cases involving infants treated for isolated nonsyndromic sagittal synostosis between 2008 and 2010 using a nonendoscopic, minimally invasive calvarial vault remodeling (CVR) procedure without postoperative helmeting. The surgical technique is described. Variables analyzed were: age at time of surgery, sex, estimated blood loss (EBL), operative time, intraoperative complications, postoperative complications, length of stay, pre- and postoperative cephalic index (CI), clinical impressions, and results of a 5-question nonstandardized questionnaire administered to patient caregivers regarding outcome. Results Eleven male and 7 female infants (mean age 2.3 months) were included in the study. The mean duration of follow-up was 16.4 months (range 6–38 months). The mean procedural time was 111 minutes (range 44–161 minutes). The mean length of stay was 2.3 days (range 2–3 days). The mean EBL in all 18 patients was 101.4 ml (range 30–475 ml). One patient had significant bone bleeding resulting in an EBL of 475 ml. Excluding this patient, the mean EBL was 79.4 ml (range 30–150 ml). There were no deaths or intraoperative complications; one patient had a superficial wound infection. The mean CI was 69 preoperatively versus 79 postoperatively, a statistically significant difference (p < 0.0001). Two patients were offered helmeting for suboptimal surgical outcome; one family declined and the single helmeted patient showed improvement at 2 months. No patient has undergone further surgery for correction of primary deformity, secondary deformities, or bony irregularities. Complete questionnaire data were available for 14 (78%) of the 18 patients; 86% of the respondents were pleased with the cosmetic outcome, 92% were happy to have avoided helmeting, 72% were doubtful that helmeting would have provided more significant correction, and 86% were doubtful that further surgery would be necessary. Small, palpable, aesthetically insignificant skull irregularities were reported by family members in 6 cases (43%). Conclusions The authors present a nonendoscopic, minimally invasive CVR procedure without postoperative helmeting. Their small series demonstrates this to be a safe and efficacious procedure for isolated nonsyndromic sagittal synostosis, with improvements in CI at a mean follow-up of 16.1 months, commensurate with other techniques, and with overall high family satisfaction. Use of a CVR cranial orthosis in a delayed fashion can be effective for the infrequent patient in whom this approach results in suboptimal correction.

scholarly journals Bowel Injury following Lumbar Discectomy using Minimally Invasive Retractors

2007 ◽  
Vol 34 (4) ◽  
pp. 485-487 ◽  
Author(s):  
Aleksa Cenic ◽  
Niv Sne ◽  
Michael Lisi ◽  
Allan Okrainac ◽  
Kesava Reddy
Keyword(s):  
Minimally Invasive ◽  
Clinical Outcomes ◽  
Lumbar Disc ◽  
Intraoperative Complications ◽  
Adult Population ◽  
Surgical Techniques ◽  
Length Of Hospital Stay ◽  
Invasive Procedure ◽  
Invasive Technique ◽  
Tubular Retractor

Prevalence of symptomatic lumbar disc herniation is 1-3% in the adult population. When conservative therapy (e.g., physiotherapy, anti-inflammatories, epidural injections, etc.) fails, open microsurgical discectomy is regarded as the treatment of choice.With this procedure, the incidence of injury to visceral bowel is reported to be 3.8 per 10,000 cases. With the recent advent of tubular retractor systems, an increasing number of surgeons are using this minimally invasive procedure to replace traditional open microsurgical discectomy. The advantages include a smaller skin incision and a muscle splitting rather than muscle incising technique. As a result post-operative pain, blood loss and length of hospital stay may decrease significantly. Multiple studies have compared the two surgical techniques with regards to their clinical outcomes. The results of these studies reveal equal if not superior clinical outcomes with the minimally invasive technique. Despite the success of the minimally invasive microdiscectomy, none of the studies reported any intraoperative complications using this novel technique.

The Emerging Role of Robotic Single-site Approach for Myomectomy: A Systematic Review of the Literature

2021 ◽  
pp. 155335062098822
Author(s):  
Eirini Giovannopoulou ◽  
Anastasia Prodromidou ◽  
Nikolaos Blontzos ◽  
Christos Iavazzo
Keyword(s):  
Blood Loss ◽  
Minimally Invasive ◽  
Complication Rate ◽  
Operative Time ◽  
Intraoperative Complications ◽  
Single Site ◽  
Minimally Invasive Technique ◽  
Invasive Technique ◽  
Robotic Myomectomy ◽  
The Mean

Objective. To review the existing studies on single-site robotic myomectomy and test the safety and feasibility of this innovative minimally invasive technique. Data Sources. PubMed, Scopus, Google Scholar (from their inception to October 2019), as well as Clinicaltrials.gov databases up to April 2020. Methods of Study Selection. Clinical trials (prospective or retrospective) that reported the outcomes of single-site robotic myomectomy, with a sample of at least 20 patients were considered eligible for the review. Results. The present review was performed in accordance with the guidelines for Systematic Reviews and Meta-Analyses (PRISMA). Four (4) studies met the inclusion criteria, and a total of 267 patients were included with a mean age from 37.1 to 39.1 years and BMI from 21.6 to 29.4 kg/m2. The mean operative time ranged from 131.4 to 154.2 min, the mean docking time from 5.1 to 5.45 min, and the mean blood loss from 57.9 to 182.62 ml. No intraoperative complications were observed, and a conversion rate of 3.8% was reported by a sole study. The overall postoperative complication rate was estimated at 2.2%, and the mean hospital stay ranged from 0.57 to 4.7 days. No significant differences were detected when single-site robotic myomectomy was compared to the multiport technique concerning operative time, blood loss, and total complication rate. Conclusion. Our findings support the safety of single-site robotic myomectomy and its equivalency with the multiport technique on the most studied outcomes. Further studies are needed to conclude on the optimal minimally invasive technique for myomectomy.

scholarly journals Clinical outcomes of minimally invasive transforaminal lumbar interbody fusion via a novel tubular retractor

2020 ◽  
Vol 48 (5) ◽  
pp. 030006052092009
Author(s):  
Yan Wang ◽  
Yaqing Zhang ◽  
Fanli Chong ◽  
Yue Zhou ◽  
Bo Huang
Keyword(s):  
Minimally Invasive ◽  
Interbody Fusion ◽  
Fatty Infiltration ◽  
Transforaminal Lumbar Interbody Fusion ◽  
Cerebrospinal Fluid Leakage ◽  
Lumbar Interbody Fusion ◽  
Multifidus Muscle ◽  
Tubular Retractor ◽  
Estimated Blood Loss

Objective To assess the feasibility and clinical results of microscopic minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) using a novel tapered tubular retractor that preserves the multifidus. Method A total of 122 patients underwent MIS-TLIF using a tapered tubular retractor system from March 2016 to August 2017. Perioperative parameters and follow-up outcomes were reviewed. Results The follow-up period was 23.95 ± 1.43 months. The operative time averaged 130.48 ± 34.44 minutes. The estimated blood loss was 114.10 ± 96.70 mL. The mean time until ambulation was 16.33 ± 6.29 hours. The average visual analogue scale (leg/waist) and Oswestry Disability Index scores (preoperative to last follow-up) improved from 4.93 ± 2.68/3.74 ± 2.28 to 0.34 ± 0.77/0.64 ± 0.74 and from 59.09% ± 22.34 to 17.04% ± 8.49, respectively. At the last follow-up, 98.36% of the patients achieved solid fusion. Cerebrospinal fluid leakage occurred in two cases. The asymptote of the surgeon’s learning curve occurred at the 25th case. There were no significant differences between the preoperative qualitative and quantitative analyses of multifidus muscle fatty infiltration and those at the final follow-up. Conclusion MIS-TLIF can be performed safely and effectively using this tapered tubular retractor system, which helps preserve the multifidus.

scholarly journals Minimálisan invazív, endoszkóppal asszisztált, transcribriform reszekció a koponyaalap rosszindulatú daganatainak sebészetében

2019 ◽  
Vol 160 (40) ◽  
pp. 1584-1590
Author(s):  
Zalán Piski ◽  
András Büki ◽  
Imre Gerlinger ◽  
István Tóth ◽  
Nelli Nepp ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Skull Base ◽  
Intraoperative Complications ◽  
Anterior Skull Base ◽  
Open Approach ◽  
Malignant Tumours ◽  
Recurrent Tumour ◽  
Intestinal Type Adenocarcinoma ◽  
The Mean

Abstract: Introduction: Malignant tumours of the sinonasal region – including those with invasion of the skull base – necessitate surgical resection. The majority of the cases give an opportunity to perform the procedure via minimally invasive, endoscopic approach, without external, craniofacial surgery. Aim: To assess our clinical experience in treating anterior skull base malignancies, performing minimally invasive endoscopic transcribriform resection. Method: Between February 2015 and July 2017, four male and one female patient underwent minimally invasive, endoscopic skull base procedure. The mean age was 64.6 years (59–70, median: 66). Every surgery was performed via transnasal, endoscopic transcribriform approach. In two cases Kadish C esthesioneuroblastomas, while in one case a T3N0 sinonasal non-differentiated carcinoma, a T1N0 intestinal type adenocarcinoma and a T4N0 squamous cell carcinoma was the indication of surgery, respectively. Results: The mean follow-up time was 22.8 months, between 14 and 46 months. Intraoperative complications did not occur during the procedures. Regarding the postoperative period, liquorrhoea and pneumocephalus occurred in one case. Complications were solved with lumbar drainage. During follow-up, neither residual nor recurrent tumour was observed in our patients. Conclusion: Endoscopic transcribriform resection of the skull base malignancies is a safe and viable alternative to the traditional open approach. Orv Hetil. 2019; 160(40): 1584–1590.

Minimally Invasive Surgical Treatment of Lumbar Synovial Cysts

Neurosurgery ◽  
2004 ◽  
Vol 54 (1) ◽  
pp. 107-112 ◽  
Author(s):  
Faheem A. Sandhu ◽  
Paul Santiago ◽  
Richard G. Fessler ◽  
Sylvain Palmer
Keyword(s):  
Surgical Treatment ◽  
Blood Loss ◽  
Minimally Invasive ◽  
Surgical Techniques ◽  
Synovial Cyst ◽  
Complete Excision ◽  
Tubular Retractor ◽  
Minimally Invasive Surgical ◽  
Average Patient ◽  
Synovial Cysts

Abstract OBJECTIVE Synovial cysts are a rare cause of lumbar radiculopathy and back pain. Surgical treatment is directed at complete excision of the cyst. We used minimally invasive surgical techniques for a series of patients, to assess the effectiveness of this approach for resection of synovial cysts. METHODS Seventeen patients (10 female and 7 male patients) with presumed synovial cysts, as indicated on magnetic resonance imaging scans, underwent surgical resection with the 18-mm METRx tubular retractor system (Medtronic Sofamor Danek, Memphis, TN). A unilateral approach was used, with either an operating microscope (13 cases) or a magnifying endoscope (4 cases), depending on the preference of the surgeon. Outcomes were reported by using modified MacNab criteria. RESULTS The average patient age was 64 years (range, 46–82 yr). The L4–L5 level was most commonly affected (82% of cases). Grade 1 spondylolisthesis at the level harboring the synovial cyst was observed for 47% of the patients; all cases of spondylolisthesis involved the L4–L5 level. The mean operative time was 97 minutes, and the average blood loss was 35 ml. Excellent or good results were achieved for 94% of the patients. A dural tear that did not violate the arachnoid membrane occurred during surgery for one patient but did not require further treatment. CONCLUSION Synovial cysts can be effectively treated with a tubular retractor system in conjunction with an endoscope or microscope. Use of the tubular retractor minimizes soft-tissue trauma, incision length, blood loss, and disruption of ligamentous and bony structures. This may be particularly significant when synovial cysts are associated with spondylolisthesis, minimizing the risk of progressive instability and the need for fusion.

scholarly journals Attaining Proficiency in Robotic-Assisted Minimally Invasive Esophagectomy While Maximizing Safety during Procedure Development

2016 ◽  
Vol 11 (4) ◽  
pp. 268-273 ◽  
Author(s):  
Inderpal S. Sarkaria ◽  
Nabil P. Rizk ◽  
Rachel Grosser ◽  
Debra Goldman ◽  
David J. Finley ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Operative Time ◽  
Minimally Invasive Esophagectomy ◽  
Intraoperative Complications ◽  
Team Approach ◽  
Robotic Assisted ◽  
Invasive Esophagectomy ◽  
Estimated Blood Loss ◽  
Dedicated Team ◽  
Median Operative Time

Objective Robotic-assisted minimally invasive esophagectomy (RAMIE) is an emerging complex operation with limited reports detailing morbidity, mortality, and requirements for attaining proficiency. Our objective was to develop a standardized RAMIE technique, evaluate procedure safety, and assess outcomes using a dedicated operative team and 2-surgeon approach. Methods We conducted a study of sequential patients undergoing RAMIE from January 25, 2011, to May 5, 2014. Intermedian demographics and perioperative data were compared between sequential halves of the experience using the Wilcoxon rank sum test and the Fischer exact test. Median operative time was tracked over successive 15-patient cohorts. Results One hundred of 313 esophageal resections performed at our institution underwent RAMIE during the study period. A dedicated team including 2 attending surgeons and uniform anesthesia and OR staff was established. There were no significant differences in age, sex, histology, stage, induction therapy, or risk class between the 2 halves of the study. Estimated blood loss, conversions, operative times, and overall complications significantly decreased. The median resected lymph nodes increased but was not statistically significant. Median operative time decreased to approximately 370 minutes between the 30th and the 45th cases. There were no emergent intraoperative complications, and the anastomotic leak rate was 6% (6/100). The 30-day mortality was 0% (0/100), and the 90-day mortality was 1% (1/100). Conclusions Excellent perioperative and short-term patient outcomes with minimal mortality can be achieved using a standardized RAMIE procedure and a dedicated team approach. The structured process described may serve as a model to maximize patients’ safety during development and assessment of complex novel procedures.

scholarly journals Three Ports Laparoscopic Resection for Colorectal Cancer: A Step on Refining of Reduced Port Surgery

ISRN Surgery ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Anwar Tawfik Amin ◽  
Tarek M. Elsaba ◽  
Gamal Amira
Keyword(s):  
Colorectal Cancer ◽  
Lymph Nodes ◽  
Colorectal Resection ◽  
Intraoperative Complications ◽  
Perioperative Period ◽  
Reduced Port Surgery ◽  
Estimated Blood Loss ◽  
The Mean ◽  
Reduced Port ◽  
Mean Time

Background. Reduced port surgery (RPS) is becoming increasingly popular for some surgeries. However, the application of RPS to the field of colectomy is still underdeveloped. Patients and Methods. In this series, we evaluated the outcome of laparoscopic colorectal resection using 3 ports technique (10 mm umbilical port plus another two ports of either 5 or 10 mm) for twenty-four cases of colorectal cancer as a step for refining of RPS. Results. The mean estimated blood loss was 70 mL (40–90 mL). No major intraoperative complications have been encountered. The mean time for passing flatus after surgery was 36 hours (12–48 hrs). The mean time for oral fluid intake was 36 hours and for semisolid food was 48 hours. The mean hospital stay was 5 days (4–7 days). The perioperative period passed without events. All cases had free surgical margins. The mean number of retrieved lymph nodes was 14 lymph nodes (5–23). Conclusion. Three ports laparoscopy assisted colorectal surgeries looks to be safe, effective and has cosmetic advantages. The procedure could maintain the oncologic principles of cancer surgery. It’s a step on the way of refining of reduced port surgery.

Retrieval of retained Jamshidi needle fragments during minimally invasive surgery

2011 ◽  
Vol 14 (5) ◽  
pp. 681-684 ◽  
Author(s):  
Michael Y. Wang ◽  
Spencer Block
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Pedicle Screw ◽  
Invasive Surgery ◽  
Open Surgery ◽  
Intraoperative Complications ◽  
Surgical Techniques ◽  
Spinal Fixation ◽  
Anatomical Structures ◽  
Surrounding Bone

As surgical techniques evolve, new intraoperative complications are prone to occur. With percutaneous spinal fixation, the control of implants and instruments can be a challenge when compared with open surgery, particularly if unintended instruments are retained or difficult to retrieve. In this report, the authors describe a case in which Jamshidi needle fragments broke within the vertebral body. Extraction of the fragments was accomplished using a small pedicle screw tap to first engage the retained metal and then to loosen the surrounding bone to allow retrieval and preservation of the anatomical structures needed to complete the intended operation. This technique may prove useful for the retrieval of deformable, cannulated metal pieces in minimally invasive surgery.

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