scholarly journals Smart glasses display device for fluoroscopically guided minimally invasive spinal instrumentation surgery: a preliminary study

2021 ◽  
Vol 34 (1) ◽  
pp. 150-154
Author(s):  
Keitaro Matsukawa ◽  
Yoshiyuki Yato
Keyword(s):  
Minimally Invasive ◽  
Radiation Exposure ◽  
Exposure Time ◽  
Operative Time ◽  
Spinal Instrumentation ◽  
Display Device ◽  
Intraoperative Complication ◽  
Smart Glasses ◽  
Estimated Blood Loss ◽  
Surgical Field

OBJECTIVEMost surgeons are forced to turn their heads away from the surgical field to see various intraoperative support monitors. These movements may result in inconvenience to surgeons and lead to technical difficulties and potential errors. Wearable devices that can be attached to smart glasses or any glasses are novel visualization tools providing an alternative screen in front of the user’s eyes, allowing surgeons to keep their attention focused on the operative task without taking their eyes off the surgical field. The aim of the present study was to examine the feasibility of using glasses equipped with a wearable display device that transmits display monitor data during fluoroscopically guided minimally invasive spinal instrumentation surgery.METHODSIn this pilot prospective randomized study, 20 consecutively enrolled patients who underwent single-segment posterior lumbar interbody fusion (PLIF) at L5–S1 performed using the percutaneous pedicle screw technique were randomly divided into two groups, a group for which the surgeon used a wearable display device attached to regular glasses while performing surgery (smart glasses group) and a group for which the surgeon did not use such a device (nonglasses group). Real-time intraoperative fluoroscopic images were wirelessly transmitted to the display device attached to the surgeon’s glasses. The number of head turns performed by the surgeon to view the standard fluoroscopic monitor during procedures and the operative time, estimated blood loss, radiation exposure time, screw placement accuracy, and intraoperative complication rate were evaluated for comparison between the two groups.RESULTSThe number of surgeon head turns to view the fluoroscopic monitor in the smart glasses group was 0.10 ± 0.31 times, which was significantly fewer than the head turns in the nonglasses group (82.4 ± 32.5 times; p < 0.001). The operative and radiation exposure times in the smart glasses group were shorter than those in the nonglasses group (operative time 100.2 ± 10.4 vs 105.5 ± 14.6 minutes, radiation exposure time 38.6 ± 6.6 vs 41.8 ± 16.1 seconds, respectively), although the differences were not significant. Postoperative CT showed one screw perforation in the nonglasses group, and no intraoperative complications were observed in either group.CONCLUSIONSThis is, to the authors’ knowledge, the first report on the feasibility of using this wearable display device attached to glasses for fluoroscopically guided minimally invasive spinal instrumentation surgery. Smart glasses display devices such as this one may be a valid option to facilitate better concentration on operative tasks by improving ergonomic efficiency during surgery.

scholarly journals Comparing Effectiveness Between a Power-Drill-Mounted Device and Conventional Free-Handed Technique for Distal Locking of Intramedullary Implants

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0022
Author(s):  
Supachoke Wattanakitkrileart ◽  
Boonsin Tangtrakulwanich ◽  
Varah Yuenyongviwat
Keyword(s):  
Radiation Exposure ◽  
Exposure Time ◽  
Operative Time ◽  
Operating Time ◽  
Surgical Team ◽  
Intramedullary Nails ◽  
Distal Locking ◽  
Orthopedic Surgeons ◽  
Power Drill ◽  
Intramedullary Implants

Objectives: The procedure for distal locking of intramedullary nails (IM nail) is one of the time-consuming procedures and also exposes the surgical team and patient to high levels of radiation. Many techniques and devices have been created to solve the problems. Nonetheless, conventional free-hand technique is still the most popular due to easy-to-use and no added device needed. This research aims to study the accuracy of a drill-mounted device with free-handed technique in the distal locking of IM nail procedure. Methods: This is an experimental study. The device was made from PVC pipes. In this study, IM-nail-inserted synthetic femoral bones (Synbone®) were set as in IM nail procedure. Four orthopedic surgeons were instructed and performed the distal locking procedure with free-handed technique and then with the device (totally 20 times for each technique). The radiation exposure time and operating time were recorded. Results: The drill-mounted device reduced the radiation exposure time statistically significant lower than the free-handed technique. However, there was no different in operative time between the two techniques. Screw misdirection occurred two times in free-handed technique but not found in our device-assisted group. Conclusion: In this experiment, the new-designed device can reduce the radiation exposure time in distal IM nail interlocking procedure. Nonetheless, further clinical study is required to confirm our results.

A Single-Center Experience with Minimally Invasive Transgastric ERCP in Patients with Previous Gastric Bypass: Lessons Learned and Technical Considerations

2020 ◽  
Vol 86 (4) ◽  
pp. 300-307
Author(s):  
Maria Baimas-George ◽  
Michael J. Passeri ◽  
William B. Lyman ◽  
Andrew Dries ◽  
Tarun Narang ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Biliary Obstruction ◽  
Operative Time ◽  
Lessons Learned ◽  
High Rate ◽  
Single Center Experience ◽  
Estimated Blood Loss ◽  
Chart Abstraction ◽  
Feasible Alternative ◽  
Median Operative Time

As bariatric surgery increases, there is a growing population of patients with biliary obstruction and anatomy which precludes transoral access through endoscopic retrograde cholangiopancreatography (ERCP). Minimally invasive transgastric ERCP (TG-ERCP) offers a feasible alternative for the treatment. A retrospective review was performed of all patients who underwent laparoscopic or robotic-assisted TG-ERCP between 2010 and 2017. Chart abstraction collected demographics, procedural details, success rate, and postoperative outcomes. Forty patients were identified, of which 38 cases were performed laparoscopically and two robotically. Median operative time was 163 minutes, with an estimated blood loss of 50 cc. TG-ERCP was performed successfully in 36 cases (90%); sphincterotomy was completed in 35 patients (97%). Sixty per cent already had a cholecystectomy; in the remaining patients, it was performed concurrently. Major complications included stomach perforation (n = 1), pancreatitis (n = 3), and anemia requiring transfusion (n = 2). In patients with biliary obstruction and anatomy not suitable for ERCP, TG-ERCP can be performed in a minimally invasive fashion, with a high rate of technical success and low morbidity. We describe a stepwise, reproducible technique because it is an essential tool for the shared armamentarium of endoscopists and surgeons.

Minimally Invasive Video-Assisted Thyroidectomy: Almost a Decade of Experience at an Academic Center

2016 ◽  
Vol 82 (10) ◽  
pp. 949-952
Author(s):  
Ethan Frank ◽  
Joshua Park ◽  
Alfred Simental ◽  
Christopher Vuong ◽  
Yuan Liu ◽  
...  
Keyword(s):  
Blood Loss ◽  
Minimally Invasive ◽  
Total Thyroidectomy ◽  
Operative Time ◽  
Vocal Cord Dysfunction ◽  
Completion Thyroidectomy ◽  
Video Assisted ◽  
Academic Center ◽  
Estimated Blood Loss ◽  
Study Population

Minimally invasive video-assisted thyroidectomy (MIVAT) has gained acceptance as an alternative to conventional thyroidectomy. This technique results in less bleeding, postoperative pain, shorter recovery time, and better cosmetic results without increasing morbidity. We retrospectively assessed outcomes in 583 patients having MIVAT from May 2005 to September 2014. The study population was divided into groups according to periods: 2005 to 2009 and 2010 to 2014. Operative data, complications, and length of stay were collected and compared. Total thyroidectomy was undertaken in 185, completion thyroidectomy in 49, and hemithyroidectomy in 349. Malignancy was present in 127 (21.8%). Mean incision was 3.4 ± 0.7 cm and estimated blood loss was 23.7 ± 21.7 mL. Mean operative time was 86.5 ± 39.3 minutes for all operations, 78.5 ± 37.0 minutes for hemithyroidectomy, 70.9 ± 30.1 minutes for completion thyroidectomy, and 106.8 ± 41.3 minutes for total thyroidectomy. Postoperatively, 56 (9.6%) had unilateral vocal cord dysfunction, which resolved except for one case (0.17%). Fifty-nine patients (10.1%) developed hypocalcemia, but only three cases (0.51%) became permanent. Only one patient required readmission. In conclusion, MIVAT results in short operative times, minimal blood loss, and few complications and is safely performed in an academic institution.

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 Surgical Outcomes for Minimally Invasive vs Open Transforaminal Lumbar Interbody Fusion

Neurosurgery ◽  
2015 ◽  
Vol 77 (6) ◽  
pp. 847-874 ◽  
Author(s):  
Nickalus R. Khan ◽  
Aaron J. Clark ◽  
Siang Liao Lee ◽  
Garrett T. Venable ◽  
Nicholas B. Rossi ◽  
...  
Keyword(s):  
Length Of Stay ◽  
Blood Loss ◽  
Minimally Invasive ◽  
Radiation Exposure ◽  
Interbody Fusion ◽  
Operative Time ◽  
Meta Analysis ◽  
Transforaminal Lumbar Interbody Fusion ◽  
Complication Rates ◽  
Lumbar Interbody Fusion

BACKGROUND: Minimally invasive transforaminal lumbar interbody fusion (TLIF)—or MI-TLIF—has been increasing in prevalence compared with open TLIF (O-TLIF) procedures. The use of MI-TLIF is an evolving technique with conflicting reports in the literature about outcomes. OBJECTIVE: To investigate the impact of MI-TLIF in comparison with O-TLIF for early and late outcomes by using the Visual Analog Scale for back pain (VAS-back) and the Oswestry Disability Index (ODI). Secondary end points include blood loss, operative time, radiation exposure, length of stay, fusion rates, and complications between the 2 procedures. METHODS: During August 2014, a systematic literature search was performed identifying 987 articles. Of these, 30 met inclusion criteria. A random-effects meta-analysis was performed by using both pooled and subset analyses based on study type. RESULTS: Our meta-analysis demonstrated that MI-TLIF reduced blood loss (P &lt; .001), length of stay (P &lt; .001), and complications (P = .001) but increased radiation exposure (P &lt; .001). No differences were found in fusion rate (P = .61) and operative time (P = .34). A decrease in late VAS-back scores was demonstrated for MI TLIF (P &lt; .001), but no differences were found in early VAS-back, early ODI, and late ODI. CONCLUSION: MI-TLIF is associated with reduced blood loss, decreased length of stay, decreased complication rates, and increased radiation exposure. The rates of fusion and operative time are similar between MI-TLIF and O-TLIF. Differences in long-term outcomes in MI-TLIF vs O-TLIF are inconclusive and require more research, particularly in the form of large, multi-institutional prospective randomized controlled trials.

Genitofemoral Nerve Protection During the Lateral Retroperitoneal Transpsoas Approach

2013 ◽  
Vol 73 (2) ◽  
pp. ons192-ons197 ◽  
Author(s):  
Gabriel C. Tender ◽  
Daniel Serban
Keyword(s):  
Length Of Stay ◽  
Blood Loss ◽  
Minimally Invasive ◽  
Operative Time ◽  
Femoral Nerve ◽  
Psoas Muscle ◽  
Lateral Approach ◽  
Direct Visualization ◽  
Genitofemoral Nerve ◽  
Estimated Blood Loss

Abstract BACKGROUND: The minimally invasive lateral retroperitoneal approach for lumbar fusions is a novel technique with good results, but also with significant sensory and motor complications. OBJECTIVE: To present the early results of a modified surgical technique, in which the psoas muscle is dissected under direct visualization. METHODS: Thirteen consecutive patients with L4-5 or L3-4 pathology were prospectively followed after being treated using a minimally invasive lateral approach with direct exposure of the psoas muscle before dissection. There were 7 woman and 6 men with a mean age of 52.3 years. Perioperative parameters like operative time, estimated blood loss, and length of stay, were noted. Pain, paresthesia, and motor weakness, as well as any other complications, were evaluated at 2 weeks and 3 months postoperatively. RESULTS: The mean operative time, estimated blood loss, and length of stay were 163 minutes, 126 mL, and 3 days, respectively. One patient exhibited anterior thigh pain and paresthesia at 2 weeks, both of which resolved by 3 months. Two patients experienced superficial wound infections that healed with antibiotics. The genitofemoral nerve was identified and protected in 7 patients; in 4 patients, it had a more posterior anatomic location than expected. The femoral nerve was not exposed or detected in the operative field by neuromonitoring, nor were there any symptoms related to a femoral nerve injury in any patient. CONCLUSION: Dissection of the psoas muscle under direct visualization during the minimally invasive lateral approach may provide increased safety to the genitofemoral and femoral nerves.

scholarly journals Minimally Invasive Spine Metastatic Tumor Resection and Stabilization: New Technology Yield Improved Outcome

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ran Harel ◽  
Omer Doron ◽  
Nachshon Knoller
Keyword(s):  
Blood Loss ◽  
Minimally Invasive ◽  
Operative Time ◽  
Medical Condition ◽  
Tumor Resection ◽  
Spinal Metastases ◽  
Medical Emergency ◽  
Tubular Retractor ◽  
Estimated Blood Loss ◽  
Index Level

Spinal metastases compressing the spinal cord are a medical emergency and should be operated on if possible; however, patients’ medical condition is often poor and surgical complications are common. Minimizing surgical extant, operative time, and blood loss can potentially reduce postoperative complications. This is a retrospective study describing the patients operated on in our department utilizing a minimally invasive surgery (MIS) approach to decompress and instrument the spine from November 2013 to November 2014. Five patients were operated on for thoracic or lumbar metastases. In all cases a unilateral decompression with expandable tubular retractor was followed by instrumentation of one level above and below the index level and additional screw at the index level contralateral to the decompression side. Cannulated fenestrated screws were used (Longitude FNS) and cement was injected to increase pullout resistance. Mean operative time was 134 minutes and estimated blood loss was minimal in all cases. Improvement was noticeable in neurological status, function, and pain scores. No complications were observed. Technological improvements in spinal instruments facilitate shorter and safer surgeries in oncologic patient population and thus reduce the complication rate. These technologies improve patients’ quality of life and enable the treatment of patients with comorbidities.

scholarly journals Minimally invasive scoliosis surgery assisted by O-arm navigation for Lenke Type 5C adolescent idiopathic scoliosis: a comparison with standard open approach spinal instrumentation

2017 ◽  
Vol 19 (4) ◽  
pp. 472-478 ◽  
Author(s):  
Weiguo Zhu ◽  
Weixiang Sun ◽  
Leilei Xu ◽  
Xu Sun ◽  
Zhen Liu ◽  
...  
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Minimally Invasive ◽  
Idiopathic Scoliosis ◽  
Spinal Instrumentation ◽  
Deformity Correction ◽  
Scoliosis Surgery ◽  
Open Approach ◽  
Additional Surgery ◽  
Estimated Blood Loss

OBJECTIVE Recently, minimally invasive scoliosis surgery (MISS) was introduced for the correction of adult scoliosis. Multiple benefits including a good deformity correction rate and fewer complications have been demonstrated. However, few studies have reported on the use of MISS for the management of adolescent idiopathic scoliosis (AIS). The purpose of this study was to investigate the outcome of posterior MISS assisted by O-arm navigation for the correction of Lenke Type 5C AIS. METHODS The authors searched a database for all patients with AIS who had been treated with either MISS or PSF between November 2012 and January 2014. Levels of fusion, density of implants, operation time, and estimated blood loss (EBL) were recorded. Coronal and sagittal parameters were evaluated before surgery, immediately after surgery, and at the last follow-up. The accuracy of pedicle screw placement was assessed according to postoperative axial CT images in both groups. The 22-item Scoliosis Research Society questionnaire (SRS-22) results and complications were collected during follow-up. RESULTS The authors retrospectively reviewed the records of 45 patients with Lenke Type 5C AIS, 15 who underwent posterior MISS under O-arm navigation and 30 who underwent posterior spinal fusion (PSF). The 2 treatment groups were matched in terms of baseline characteristics. Comparison of radiographic parameters revealed no obvious difference between the 2 groups immediately after surgery or at the final follow-up; however, the MISS patients had significantly less EBL (p < 0.001) and longer operation times (p = 0.002). The evaluation of pain and self-image using the SRS-22 showed significantly higher scores in the MISS group (p = 0.013 and 0.046, respectively) than in the PSF group. Postoperative CT showed high accuracy in pedicle placement in both groups. No deep wound infection, pseudarthrosis, additional surgery, implant failure, or neurological complications were recorded in either group. CONCLUSIONS Minimally invasive scoliosis surgery is an effective and safe alternative to open surgery for patients with Lenke Type 5C AIS. Compared with results of the open approach, the outcomes of MISS are promising, with reduced morbidity. Before the routine use of MISS, however, long-term data are needed.

scholarly journals Comparison of Trifecta Outcome Among Open, Laparoscopic, and Robotic-Assisted Partial Nephrectomy in Patients With Small Renal Masses: 10-Year Experience in Ramathibodi Hospital

2021 ◽  
Author(s):  
Chaichant Soisrithong ◽  
Wit Viseshsindh ◽  
Wisoot Kongchareonsombat ◽  
Charoen Leenanupunth ◽  
Wachira Kochakarn ◽  
...  
Keyword(s):  
Blood Loss ◽  
Partial Nephrectomy ◽  
Operative Time ◽  
Small Renal Masses ◽  
Renal Masses ◽  
Intraoperative Complication ◽  
Robotic Assisted ◽  
Estimated Blood Loss ◽  
Number Of Patients ◽  
Robotic Assisted Partial Nephrectomy

Abstract Purpose: To compare the trifecta outcome and perioperative and postoperative outcomes among open partial nephrectomy (OPN), laparoscopic partial nephrectomy (LPN), and robotic-assisted partial nephrectomy (RAPN) in patients with small renal masses in Ramathibodi Hospital.Methods: We retrospectively reviewed 141 patients who underwent partial nephrectomy from January 2009 to December 2018. The baseline characteristics and preoperative outcomes were compared among the three surgical approaches. Results: Among the 141 patients, 42 (29.79%), 29 (20.57%), and 70 (49.64%) patients underwent OPN, LPN, and RAPN, respectively. Among 116 patients with available data, 71 achieved the trifecta outcome [18 (56.25%), 14 (56.00%), and 39 (73.58%) in the OPN, LPN, and RAPN group, respectively; p=0.276]. The rate of conversion to OPN was higher in the LPN than RAPN group. The number of patients who received intraoperative packed red cells was lowest in the RAPN group. The estimated blood loss was significantly lower in the LPN group than OPN and RAPN groups (p=0.041). The operative time was shorter in the OPN group than LPN and RAPN groups (p<0.001). Multivariate analysis showed that the intraoperative complication rate was a predictive factor for trifecta outcome achievement.Conclusion: OPN had the shortest operative time. LPN had the highest rate of conversion to OPN and lowest estimated blood loss. The number of patients who received intraoperative packed red cells was lowest in the RAPN group. However, achievement of the trifecta outcome was not significantly different among the three groups. The predictive factor for trifecta outcome achievement was the intraoperative complication rate.

scholarly journals Open Partial Nephrectomy with Zero Ischaemia Using a Supra 12th Rib Miniflank Incision: A Minimally Invasive Open Approach for Small Renal Masses

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Syed Ali Ehsanullah ◽  
Abida Sultana ◽  
Brian Kelly ◽  
Charlotte Dunford ◽  
Zaheer Shah
Keyword(s):  
Renal Function ◽  
Blood Loss ◽  
Minimally Invasive ◽  
Partial Nephrectomy ◽  
Operative Time ◽  
Tumour Size ◽  
Open Approach ◽  
Open Partial Nephrectomy ◽  
Estimated Blood Loss ◽  
The Mean

Introduction. To assess a minimally invasive open technique for partial nephrectomy with zero ischaemia time. Methods. A review was performed in a prospectively maintained database of a single surgeon series of all patients undergoing partial nephrectomy using a supra 12th rib miniflank incision with zero ischaemia. Data of seventy one patients who underwent a partial nephrectomy over an 82-month period were analyzed. Data analyzed included operative time, estimated blood loss, pre and postoperative renal function, complications, final pathological characteristics, and tumour size. Results. Seventy one partial nephrectomies were performed from February 2009 to October 2015. None were converted to radical nephrectomy. Mean operative time was 72 minutes (range 30–250), and mean estimated blood loss was 608 mls (range 100–2500) with one patient receiving blood transfusion. The mean pre and postoperative haemoglobin levels were 144 and 112 g/l. The mean pre and postoperative creatinine levels were 82 and 103 Umol/L. There were 8 Clavian–Dindo Grade 2 complications and 1 major complication (Clavian IIIa). Histology confirmed 24 benign lesions and 47 malignant lesions, 46 cT1a lesions, 24 cT1b lesions, and 1 cT2 lesion. Median follow-up was 38 months with no local recurrence or progression of disease with 5 patients having a positive margin (7%). Conclusion. Our results demonstrate that a supra 12th miniflank incision open partial nephrectomy with zero ischaemic time for SRMs has satisfactory outcomes with preservation of renal function. A minimally invasive open partial nephrectomy remains an important option for units that cannot offer patients a laparoscopic or a robotic procedure.

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