FRONTAL STABILITY OF THE KNEE JOINT AFTER TKA USING A COMPUTER NAVIGATION SYSTEM

2021 ◽  
pp. 102-105
Author(s):  
Mohammad Ali Alqatawneh ◽  
◽  
E. V. Zhuk ◽  
P. I. Bespalchuk ◽  
◽  
...  
Keyword(s):  
Knee Joint ◽  
Navigation System ◽  
Computer Navigation ◽  
Group Versus ◽  
Frontal Plane ◽  
Functional Results ◽  
Control Group ◽  
Stress Tests ◽  
Computer Navigation System ◽  
Navigation Group

The article provides a comparative analysis of the functional results of total knee arthroplasty and knee postoperative stability in the frontal plane in 124 patients (22 men and 102 women) suffering from gonarthrosis, aged 51 to 83 years (average 69.8 years), operated on with using a standard technique (n = 62) or using a computer navigation system (n = 62), observed for 12 months from the moment of surgery. The use of the navigation system made it possible in a number of cases to achieve more accurate resection of the femur and tibia (deviations from the anatomical axis in 6.5 % of cases versus 19.4 % in the control group), as well as to provide the necessary soft tissue tension to achieve the most accurate balance of the knee joint during the entire range of motion after arthroplasty (stress tests founded frontal plain knee instability of the operated knee in 3.2 % cases in navigation group versus 8.1% cases in control group), however, no data on the reliable superiority of the functional results at the indicated follow-up time were found.

Analysis of Implant Alignment and Early Functional Results of Total Knee Replacement Performed Using Computer Navigation System

2009 ◽  
Vol 16 (3) ◽  
pp. 51-55
Author(s):  
Aleksey Ivanovich Petukhov ◽  
N N Kornilov ◽  
T A Kulyaba ◽  
R M Tikhilov ◽  
A V Selin ◽  
...  
Keyword(s):  
Navigation System ◽  
Sagittal Plane ◽  
Computer Navigation ◽  
Group Versus ◽  
Frontal Plane ◽  
Functional Results ◽  
Control Group ◽  
Computer Assisted ◽  
Computer Navigation System ◽  
Implant Alignment

Knee implant alignment analysis and comparative assessment of functional results of 47 total joint replacements with computer navigation system (main group) versus 50 conventional arthroplasties (control group) were performed. Computer assisted system improved the accuracy of limb alignment after knee arthroplasty and reduced the rate of deviations. The position of femoral component in frontal plane and tibial component in sagittal plane showed statistically reliable differences between two groups (p

DEFORMATION AND CONTRACTURE OF KNEE JOINT

2021 ◽  
pp. 12-18
Author(s):  
M.А. Alqatawneh ◽  
◽  
E.V. Zhuk ◽  
P.I. Bespalchuk ◽  
◽  
...  
Keyword(s):  
Navigation System ◽  
Computer Navigation ◽  
Standard Technique ◽  
Functional Results ◽  
Control Group ◽  
Optimal Range ◽  
Total Knee ◽  
The Moment ◽  
Significant Superiority

The article provides a comparative analysis of the functional results of total knee arthroplasty and its postoperative deformity and contracture in 124 patients (22 men and 102 women) suffering from gonarthrosis, aged 51 to 83 years (average 69.8 years), operated on with using a standard technique (n = 62) or using a computer navigation system (n = 62), observed for 12 months, from the moment of surgery. The use of the navigation system made it possible in a number of cases to achieve more accurate resection of the femur and tibia (6.5 % of cases of deviations from the anatomical axis versus 19.4 % in the control group), as well as to determine the degree of deformity and severity of contracture to achieve the most optimal range of motion after endopresthetics (3.2 % versus 8.1 %), however, there was no evidence of a significant superiority of functional results within the indicated follow-up period.

scholarly journals Accuracy Evaluation of Surface-Based Registration Methods in a Computer Navigation System for Hip Surgery Performed Through a Posterolateral Approach

2001 ◽  
Vol 6 (4) ◽  
pp. 195-203 ◽  
Author(s):  
Nobuhiko Sugano ◽  
Toshihiko Sasama ◽  
Yoshinobu Sato ◽  
Yoshikazu Nakajima ◽  
Takashi Nishii ◽  
...  
Keyword(s):  
Navigation System ◽  
Computer Navigation ◽  
Hip Surgery ◽  
Posterolateral Approach ◽  
Accuracy Evaluation ◽  
Computer Navigation System

scholarly journals Accelerometer-Based Navigation in Total Knee Arthroplasty for the Management of Extra-Articular Deformity and Retained Femoral Hardware: Analysis of Component Alignment

Joints ◽  
2019 ◽  
Vol 07 (01) ◽  
pp. 001-007 ◽  
Author(s):  
Andrea Cozzi Lepri ◽  
Matteo Innocenti ◽  
Fabrizio Matassi ◽  
Marco Villano ◽  
Roberto Civinini ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Navigation System ◽  
Lower Limb ◽  
Sagittal Plane ◽  
Frontal Plane ◽  
Control Group ◽  
Navigation Systems ◽  
Level Of Evidence ◽  
Total Knee

Abstract Purpose Recent advances in total knee arthroplasty (TKA) include an accelerometer portable system designed to improve component position and alignment. The purpose of this study is to evaluate whether accelerometer navigation system can be a valuable option in complex TKAs for extra-articular deformity of the lower limb or in case of retained femoral hardware. Methods A group of 13 patients underwent TKA with an accelerometer navigation system. Three patients had a tibial extra-articular deformity, six had a femoral extra-articular deformity, and four had an intramedullary nail in the femur. Preoperative and postoperative mechanical axes were measured from full-length lower extremity radiographs to evaluate alignment. The alignment of prosthetic components in the frontal and sagittal planes was determined by postoperative radiographs. Results At 30-days postoperative radiographic check, the hip knee ankle angle was within 2.0° (0 ± 1) of the neutral mechanical axis. The alignment of the tibial component on the frontal plane was 90.0° (range 89–91) and on the sagittal plane 5.0° (range 3–7). The alignment of the femoral component on the frontal plane was 90.0° (range 89–91) and on the sagittal plane 3.0° (range 0–5). Conclusion The alignment of the prosthetic components has been accurate and comparable to other navigation systems in literature without any increase in surgical times. The accelerometer-based navigation system is therefore a useful technique that can be used to optimize TKA alignment in patients with extra-articular deformity or with lower limb hardware, where the intramedullary guides cannot be applied. Level of Evidence This is an observational study without a control group, Level III.

scholarly journals A new inertial navigation system for guiding implant placement. An in-vitro proof-of-concept study

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0255481
Author(s):  
G. Esteve-Pardo ◽  
L. Esteve-Colomina ◽  
E. Fernández
Keyword(s):  
Dental Implant ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Computer Navigation ◽  
Inertial Navigation ◽  
Test Group ◽  
Control Group ◽  
Angular Deviation ◽  
Processing Unit ◽  
Implant Placement

The aim of this study was to assess the potential use of a new advanced inertial navigation system for guiding dental implant placement and to compare this approach with standard stereolithographic template guiding. A movement processing unit with a 9-axis absolute orientation sensor was adapted to a surgical handpiece and wired to a computer navigation interface. Sixty implants were placed by 10 operators in 20 jaw models. The 30 implants of the test group were placed in 10 models guided by the new inertial navigation prototype. The 30 implants of the control group were placed in another 10 models using a CAD-CAM template. Both groups were subdivided into experienced and non-experienced operators. Pre- and postoperative computer tomography images were obtained and matched to compare the planned and final implant positions. Four deviation parameters (global, angular, depth, and lateral deviation) were defined and calculated. The primary outcome was the angular deviation between the standard stereolithographic approach and the new inertial navigation system. Results showed no significant differences between both groups, suggesting that surgical navigation based on inertial measurement units (IMUs) could potentially be useful for guiding dental implant placement. However, more studies are still needed to translate this new approach into clinical practice.

Total Knee Replacement Using Computer Navigation in Severe Extremity Deformities

2010 ◽  
Vol 17 (2) ◽  
pp. 34-40
Author(s):  
G M Kavalerskiy ◽  
V Yu Murylev ◽  
P M Elizarov ◽  
A G Zhuchkov ◽  
L A Yakimov ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Joint ◽  
Total Knee Replacement ◽  
Knee Arthroplasty ◽  
Computer Navigation ◽  
Functional Results ◽  
Ipsilateral Side ◽  
Knee Joint Replacement ◽  
Ligament Balance ◽  
Total Knee

Experience in cement total knee arthroplasty using computer navigation is presented. There were 42 patients with severe deformities of knee, condyles as well as tibia and femur diaphyses. Five patients out of them had prior implanted hip endoprostheses on ipsilateral side in whom use of routine arthroplasty technique with guide was impossible. In such cases computer navigation allowed to achieve high-precise insertion of implant with provision of correct ligament balance and maintenance of all axes and angles. The terms of rehabilitation and functional results were similar to common cases of primary knee joint replacement using computer navigation.

Semi-automatic guidance of a biopsy catheter to peripheral airways targets using a novel robotic and computer navigation system

2019 ◽  
Vol 12 ◽  
pp. 304-308 ◽  
Author(s):  
Lucian Gheorghe Gruionu ◽  
Cătălin Constantinescu ◽  
Andreea Şoimu-Iacob ◽  
Cătălin Ciobîrcă ◽  
Anca Udriştoiu ◽  
...  
Keyword(s):  
Navigation System ◽  
Computer Navigation ◽  
Peripheral Airways ◽  
Computer Navigation System ◽  
Automatic Guidance

Innovative Measures of Accuracy and Situational Awareness during Land Navigation

1998 ◽  
Vol 42 (19) ◽  
pp. 1366-1370 ◽  
Author(s):  
Mary McWesler ◽  
William P. Marshak ◽  
Monica M. Glumm
Keyword(s):  
Navigation System ◽  
Situational Awareness ◽  
Computer Navigation ◽  
Gps Receiver ◽  
Course Performance ◽  
Position Information ◽  
Computer Navigation System ◽  
Computer Based ◽  
The U.S

A helmet-mounted display (HMD)-based computer navigation system that partially mimics the U.S. Army's Land Warrior ensemble provided position information and map updates to soldiers navigating a three-kilometer course. Performance with the HMD system was compared to traditional navigation with paper map, compass, and a hand-held GPS receiver. New objective computer-based measures of navigational accuracy and situational awareness (SA) were developed. Traditional measures of navigational accuracy were not sensitive enough to detect differences between HMD and traditional navigational methods. The more sensitive new measure based on distance traveled found the HMD-based system to be superior. This method is easily adaptable to civilian applications such as orienteering. A supposed advantage of using HMDs is enhanced SA. A SA measure was developed which used probe questions generated by the computer. Although the probe questions found no significant differences between the conditions, the method seems promising for future applications.

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