scholarly journals ADAPT system is a dramatic advance in computer-assisted surgery for femoral trochanteric fractures

SICOT-J ◽  
2021 ◽  
Vol 7 ◽  
pp. 55
Author(s):  
Tomotoshi Murakami ◽  
Kazuhiro Yamazaki ◽  
Hiroyoshi Ogasa
Keyword(s):  
Intramedullary Nailing ◽  
Operative Time ◽  
Computer Assisted Surgery ◽  
Fluoroscopy Time ◽  
Control Group ◽  
Computer Assisted ◽  
Trochanteric Fractures ◽  
Implant Placement ◽  
Head Surface ◽  
Intraoperative Fluoroscopy

Introduction: In recent years, computer-assisted surgery has made it possible to undergo surgery with a high degree of precision. This study aimed to investigate the usefulness of computer-assisted surgery for femoral trochanteric fractures using the ADAPT (ADAptive Positioning Technology) system. Methods: A total of forty patients with femoral trochanteric fracture underwent intramedullary nailing for fracture fixation: in twenty patients, the ADAPT system (ADAPT group), and in the other twenty, it was not used (control group). The operative time, intraoperative fluoroscopy time, tip apex distance (TAD), and tip to head surface distance (TSD) were measured and compared between the two groups to assess the efficiency and accuracy of the surgery. Results: The operative time was significantly shorter (P < 0.05), intraoperative fluoroscopy time was significantly reduced (P < 0.01), and implant placement was significantly better in the ADAPT group (P < 0.01). Conclusion: Navigation systems have been developed to improve the efficiency of surgery. The ADAPT system was considered a very useful device for intramedullary nailing of femoral trochanteric fractures, as it reduced the intraoperative fluoroscopy time and improved the accuracy of implant placement, also reducing the operative time.

Accuracy of computer-assisted surgery in immediate implant placement: An experimental study

2021 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
LuisErnesto Arriola-Guillén ◽  
Nicole Báez-Marrero ◽  
JoséLuis Rafel ◽  
YalilAugusto Rodríguez-Cárdenas ◽  
AronAliaga-Del Castillo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Implant Placement ◽  
Immediate Implant

Fluoroscopic Frameless Stereotaxy for Transsphenoidal Surgery

Neurosurgery ◽  
2001 ◽  
Vol 48 (6) ◽  
pp. 1302-1308 ◽  
Author(s):  
John A. Jane ◽  
Kamal Thapar ◽  
Tord D. Alden ◽  
Edward R. Laws
Keyword(s):  
Transsphenoidal Surgery ◽  
Image Guidance ◽  
Operative Time ◽  
Sella Turcica ◽  
Setup Time ◽  
Lateral View ◽  
Control Group ◽  
Computer Assisted ◽  
Frameless Stereotaxy ◽  
X Rays

Abstract OBJECTIVE To assess the value of frameless fluoroscopy-guided stereotactic transsphenoidal surgery using the FluoroNav Virtual Fluoroscopy System (Medtronic Sofamor Danek, Inc., Memphis, TN). METHODS Twenty consecutive patients undergoing transsphenoidal surgery for sellar lesions were assigned to transsphenoidal surgery with or without computer-assisted fluoroscopic image guidance using the FluoroNav system. Prospective data regarding patient age, sex, lesion characteristics, operative time, and treatment cost were obtained. RESULTS Although patients in the FluoroNav group were, on average, 17 years younger than the patients in the control group, more patients with recurrent adenomas were treated in the image guidance group. No other significant differences between the groups were found. FluoroNav provided accurate, continuous information regarding the anatomic midline trajectory to the sella turcica as well as anatomic structures (e.g., sella, sphenoid sinus) in the lateral view. No patient required reversion to intraoperative videofluoroscopy. No statistically significant differences were found with regard to preincision setup time, operative time, or cost. FluoroNav allowed procedures to be performed with significantly fewer x-rays being taken. CONCLUSION Fluoroscopic computer-assisted frameless stereotaxy furnishes accurate real-time information with regard to midline structures and operative trajectory. Although it is useful in first-time transseptal transsphenoidal surgery, its primary benefit is realized in recurrent surgery.

scholarly journals Clinical Use of a Computer Assisted Reverse Total Shoulder Arthroplasty System: an Analysis of 1702 Cases

10.29007/hcd6 ◽  
2019 ◽  
Author(s):  
Alexander Greene ◽  
Sandrine Polakovic ◽  
Christopher Roche ◽  
Yifei Dai
Keyword(s):  
Shoulder Arthroplasty ◽  
Preoperative Planning ◽  
Total Shoulder Arthroplasty ◽  
Computer Assisted Surgery ◽  
Reverse Total Shoulder Arthroplasty ◽  
Computer Assisted ◽  
Glenoid Component ◽  
Implant Placement ◽  
Implant Selection ◽  
Reverse Total Shoulder

Placement of the glenoid component in reverse total shoulder arthroplasty (rTSA) is of paramount importance and can affect a patient’s range of motion postoperatively. Preoperative planning and computer assisted surgery (CAS) can improve upon glenoid placement, but such systems for rTSA have experienced limited commercial success. Postoperative surgical reports from the first 1702 clinical cases of a commercially available CAS rTSA system were collected and analyzed for implant selection, implant placement, and incision start to incision close operative time, and compared to similar date cohorts for non-navigated cases. Navigated rTSA cases had a significantly longer incision time than non-navigated cases. Augmented glenoid components were used in a much higher percentage of navigated cases than non-navigated cases, suggesting that augmented glenoid components provide utility for correcting pathologic glenoid wear. The average resultant version and inclination of the implanted component increased with the size of augment used, suggesting there may not be a clear consensus on optimal version or inclination. Long term clinical follow up will need to be collected to determine if preoperative planning combined with more precise and accurate glenoid component positioning leads to improved clinical outcomes and implant longevity.

scholarly journals Comparison of Functional Outcome Between Computer Navigated Total Knee Replacement with Conventional Method

2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Ahmad Munir Hashim ◽  
Mohd Shahidan b. Noor Rahin ◽  
Ahmad Hafiz b. Zulkifly
Keyword(s):  
Total Knee Replacement ◽  
Functional Outcome ◽  
Knee Replacement ◽  
Conventional Method ◽  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Implant Placement ◽  
Sf 36 ◽  
Significant Difference ◽  
Total Knee

Introduction: Total knee replacement (TKR) is considered one of most successful treatment in treating knee arthritis. It aims at restoring neutral mechanical axis, balanced ligaments and normal Q angle. Surgeons have been using manual jig to achieved perfect implant placement. Since 2002 computer assisted surgery (CAS) is gaining popularity in TKR surgery to improved accuracy of implant placement. In a large meta-analysis by Bauwen’s et al, computer assisted surgery reduced number of patients with post-operative malalignment >3 degree. In another study by Kim et al found there was no no difference in alignment between computer assisted and conventional method TKR in bilateral TKR with one using conventional and the other computer assisted. In our study we compared the functional outcome between these two methods. Materials and Methods: This was a cross-sectional study conducted in Penang General Hospital comparing the functional outcome using SF-36 questionnaire and Hospital for Special Surgery (HSS) knee scoring. It involved 35 knees in each arm. All patients were operated by single surgeon using same type of implant and navigation system. Patients with post-operative complications were excluded. Results: We found that there was no significant difference (p<0.05) in both SF-36 and HSS knee score using U Mann Whitney test. Conclusion: There was no difference in functional outcome between conventional TKR and CAS.

scholarly journals Computer-assisted surgery navigation of pedicle screw insertion by standardized trainees

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Mingyong Liu ◽  
Liang Zhang ◽  
Jianhua Zhao ◽  
Peng Liu
Keyword(s):  
Ct Scan ◽  
Pedicle Screw ◽  
Navigation System ◽  
Computer Assisted Surgery ◽  
Control Group ◽  
Computer Assisted ◽  
Low Grade ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Thoracic Pedicle Screw

<p><strong>Objective:</strong> To assess the precision and efficiency computer-assisted surgery navigation of pedicle screw insertion by standardized trainees. <strong>Methods</strong> From September 2013 to June 2016, 360 thoracic pedicle screws were inserted into 100 patients by standardized trainees (n = 30). Screws on the left side were inserted by hands (control group), while the other side were inserted under the guidance of computer-assistant navigation system (guided group). The insertion time and volume of blood lost by each screw were retrospectively analyzed. The precision ratio was assessed by computerized tomography (CT) scan after operation. <strong>Results</strong> The time consumed in screw insertion was significantly shorter in the guided group than that in the control group. The blood lost volume was lesser in the guided group. Post-operation CT scan revealed higher precision in the guided group than that in the control group.<strong> Conclusion</strong> Computer-assistant navigation system facilitates the learning of standardized trainees, and reduces the time-consuming and bleeding in thoracic pedicle screw insertion. Orthodontics training is the most important low-grade physician training in the orthopedic department1,2. Due to the complexity of spinal anatomy, professional required and high risk of spinal surgery, thoracic pedicle screw implantation has become a very demanding technique. Furthermore, the spine surgery learning is not conducive to the trainees. Since 2013, our department started to use the computer-assisted three-dimensional navigation technology to guide the implantation of screws3. We found that the computer-assisted navigation technology has greater advantage when compared with the traditional hand-implanted technology.</p>

scholarly journals Periprosthetic Fracture of Greater Trochanter in Total Hip Replacement Stemming from Pin Site Placement in Navigation-Assisted Surgery

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Ava Brozovich ◽  
David R. Lionberger
Keyword(s):  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Leg Length ◽  
Greater Trochanter ◽  
Total Hip ◽  
Tibial Stress Fracture ◽  
Implant Placement ◽  
Total Knee ◽  
Pin Site ◽  
Suture Abscess

Surgeons are looking to use computer computer-assisted surgery (CAS) in total hip arthroplasty (THA) in order to quantify leg length measurement, angular cup placement, and enhance stability to provide enhanced accuracy in implant placement. As a result, CAS in THA is gaining popularity. This technology employs the use of pins and provides the surgeon with real-time feedback on positioning intraoperatively. Previous total knee arthroplasty (TKA) literature has reported pin-associated complications such as infections, neuropraxia, and suture abscess. To our knowledge, there have been reports of tibial stress fracture after CAS TKA, but this is the first report of a pin causing fracture of the greater trochanter leading to dislocation in THA. Further studies may be warranted to optimize pin placement for trackers to prevent fractures of the greater trochanter.

scholarly journals Clinical Use of a Computer Assisted Anatomic Total Shoulder Arthroplasty System: An Analysis of 574 Cases

10.29007/kld9 ◽  
2019 ◽  
Author(s):  
Alexander Greene ◽  
Sandrine Polakovic ◽  
Christopher Roche ◽  
Yifei Dai
Keyword(s):  
Clinical Outcomes ◽  
Shoulder Arthroplasty ◽  
Preoperative Planning ◽  
Total Shoulder Arthroplasty ◽  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Glenoid Component ◽  
Implant Placement ◽  
Implant Selection

Accurate reproduction of glenohumeral anatomy during anatomic total shoulder arthroplasty (aTSA) has been shown to correlate with positive clinical outcomes. Preoperative planning and computer assisted surgery (CAS) can improve upon glenoid placement, but such systems for aTSA have experienced limited commercial success. Postoperative surgical reports from the first 574 clinical cases of a commercially available CAS aTSA system were collected and analyzed for implant selection, implant placement, and incision start to incision close operative time, and compared to similar date cohorts for non-navigated cases. Navigated aTSA cases had a significantly longer incision time than non-navigated cases. Augmented glenoid components were used in a much higher percentage of navigated cases than non-navigated cases, suggesting that augmented glenoid components provide utility for correcting pathologic glenoid wear. The average resultant version of the implanted component increased with the size of augment used, suggesting there may not be a clear consensus on optimal retroversion. term clinical follow up will need to be collected to determine if preoperative planning combined with more precise and accurate glenoid component positioning leads to improved clinical outcomes and implant longevity.

scholarly journals Increasing stone complexity does not affect fluoroscopy time in percutaneous nephrolithotomy

2019 ◽  
Vol 11 ◽  
pp. 175628721984021
Author(s):  
Annah Vollstedt ◽  
Johann Ingimarsson ◽  
Lawrence Dagrosa ◽  
Vernon Pais
Keyword(s):  
Computed Tomography ◽  
Percutaneous Nephrolithotomy ◽  
Radiation Dosimetry ◽  
Operative Time ◽  
Fluoroscopy Time ◽  
Intraoperative Radiation ◽  
Intraoperative Fluoroscopy ◽  
Multivariable Regression ◽  
Dosimetry Data ◽  
Operating Room Staff

Background: The aim of this work was to assess whether stone complexity with the Guy’s stone score (GSS) is associated with increased intraoperative fluoroscopy time. Methods: We retrospectively reviewed records of 261 consecutive patients undergoing percutaneous nephrolithotomy between 2007 and 2015. Of these, 203 had both preoperative computed tomography for accurate staging and full intraoperative fluoroscopy and radiation dosimetry data were available. Stone complexity was assessed using GSS. A correlation between fluoroscopy time (FT) and GSS was assessed in a univariate and multivariate fashion, including parameters such as age, sex, body mass index (BMI), and number of accesses. Results: The overall mean FT was 3.69 min [standard deviation (SD) 2.77]. The overall mean Guy’s score was 2.5 (SD 1). There was a statistically significant correlation between operative time and FT ( r = 0.34, p < 0.0001). There was a trend towards increasing operative time with increasing GSS ( r = 0.12, p = 0.08), but there was no statistically significant correlation. There was no correlation between FT and GSS ( r = 0.04, p = 0.55). On multivariable regression, accounting for sex, BMI, age, and singular versus multiple accesses, there was no significant correlation between stone complexity and FT ( p = 0.893). Conclusions: In the setting of conscious efforts to reduce intraoperative radiation exposure, increasing stone complexity, as classified by GSS, did not correlate with FT on univariate or multivariate analysis. Thus, treatment of more complex stones may be undertaken without concern that there is an inevitable need for significantly increased fluoroscopy exposure to the patient or operating room staff.

scholarly journals Computer-assisted surgery navigation of pedicle screw insertion by standardized trainees

2019 ◽  
Author(s):  
Ming Yong Liu
Keyword(s):  
Ct Scan ◽  
Pedicle Screw ◽  
Navigation System ◽  
Pedicle Screws ◽  
Computer Assisted Surgery ◽  
Control Group ◽  
Computer Assisted ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Thoracic Pedicle Screws

Objective: To assess the precision and efficiency computer-assisted surgery navigation of pedicle screw insertion by standardized trainees. Methods: From September 2013 to June 2016, 360 thoracic pedicle screws were inserted into 100 patients by standardized trainees (n = 30). Screws on the left side were inserted by hands (control group), while the other side were inserted under the guidance of computer-assistant navigation system (guided group). The insertion time and volume of blood lost by each screw were retrospectively analyzed. The precision ratio was assessed by computerized tomography (CT) scan after operation. Results: The time consumed in screw insertion was significantly shorter in the guided group than that in the control group. The blood lost volume was lesser in the guided group. Post-operation CT scan revealed higher precision in the guided group than that in the control group. Conclusion: Computer-assistant navigation system facilitates the learning of standardized trainees, and reduces the time-consuming and bleeding in thoracic pedicle screw insertion.

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