scholarly journals Employing Conventional Instrumentation with Computer-Aided Surgery in Total Knee Replacement — Making it Simple

2013 ◽  
Vol 22 (4) ◽  
pp. 241-247 ◽  
Author(s):  
Mashfiqul A Siddiqui ◽  
Pak Lin Chin
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Computer Aided Surgery ◽  
Computer Aided ◽  
Conventional Instrumentation ◽  
Total Knee

scholarly journals Total Knee Replacement with iASSIST Navigation System

2018 ◽  
Vol 24 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Chi-Kin Lo ◽  
Hok-Yin Li ◽  
Yiu-Chung Wong ◽  
Yuk-Leung Wai
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Navigation System ◽  
Lower Limb ◽  
Operative Time ◽  
Lower Limb Alignment ◽  
Limb Deformity ◽  
Conventional Instrumentation ◽  
Alignment Technique ◽  
Total Knee

Background/Purpose The iASSIST system is a novel navigation system for total knee replacement. It is based on accelerometers built within electronic pods attached to the instruments within the operative field. The objective of this study was to compare the accuracy of iASSIST navigation with that of the conventional alignment technique. Methods A total of 91 patients (92 knees) retrospectively matched for age, gender, preoperative range of motion, and lower limb deformity underwent total knee replacement using iASSIST navigation (45 patients, 46 knees) or conventional instrumentation (46 patients, 46 knees). Operative time and radiological alignments were compared. Results The use of iASSIST navigation resulted in fewer outliners (as defined by >3° deviation from the neutral mechanical axis) in lower limb alignment. Operative time with iASSIST navigation was not longer than that using conventional instruments. Conclusion iASSIST navigation reduces the incidence of lower limb malalignment without adding extra time to the procedure.

scholarly journals Patient specific instrumentation influences hemoglobin decrease after total knee replacement.

10.29007/f8h2 ◽  
2018 ◽  
Author(s):  
Davide Cucchi ◽  
Beatrice Zanini ◽  
Paolo Ferrua ◽  
Riccardo Compagnoni ◽  
Alessandra Menon ◽  
...  
Keyword(s):  
Blood Loss ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Medullary Canal ◽  
Patient Specific ◽  
Reduce Blood Loss ◽  
Patient Specific Instrumentation ◽  
Significant Difference ◽  
Conventional Instrumentation ◽  
Total Knee

Patient Specific Instrumentation (PSI) may contribute to reduce blood loss after total knee replacement (TKR) by avoiding violation of the medullary canal. The purpose of the study was to compare the hemoglobin (Hb) decrease in two groups of patients undergoing TKR with PSI and conventional instrumentation.Pre- and post-operative blood samples were collected for twenty-two patients randomly assigned to receive a PSI-assisted or conventional TKR. Post- to preoperative Hb difference was calculated.A significant difference in Hb reduction in favor of the PSI group was registered on the last day of stay but not on the previous post-operative days: these promising results suggest a beneficial effect of PSI in blood loss reduction. PSI may hence be considered among the strategies available to control and reduce blood loss related to TKR.

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