Kinematic and kinetic analysis of lower limb before and after total knee arthroplasty (TKA) in a Chinese population

2016 ◽  
Author(s):  
Jingchen Zhang ◽  
Liying Xiao ◽  
Zhixiu Hao ◽  
Qingchuan Ma ◽  
Zhichang Li ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Kinetic Analysis ◽  
Knee Arthroplasty ◽  
Lower Limb ◽  
Chinese Population ◽  
Before And After ◽  
Total Knee

Lower Limb Biomechanics in Individuals With Knee Osteoarthritis Before and After Total Knee Arthroplasty Surgery

2013 ◽  
Vol 28 (6) ◽  
pp. 994-999 ◽  
Author(s):  
Pazit Levinger ◽  
Hylton B. Menz ◽  
Adam D. Morrow ◽  
Julian A. Feller ◽  
John R. Bartlett ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Osteoarthritis ◽  
Knee Arthroplasty ◽  
Lower Limb ◽  
Before And After ◽  
Total Knee ◽  
Knee Arthroplasty Surgery ◽  
Arthroplasty Surgery

scholarly journals Postoperative laxity of the lateral soft tissue is largely negligible in total knee arthroplasty for varus osteoarthritis

2021 ◽  
Vol 29 (1) ◽  
pp. 230949902110020
Author(s):  
Seikai Toyooka ◽  
Hironari Masuda ◽  
Nobuhiro Nishihara ◽  
Takashi Kobayashi ◽  
Wataru Miyamoto ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Soft Tissue ◽  
Knee Arthroplasty ◽  
Mechanical Axis ◽  
Varus Deformity ◽  
Varus Knee ◽  
Before And After ◽  
Knee Deformity ◽  
Varus Stress ◽  
Total Knee

Purpose: To evaluate the integrity of lateral soft tissue in varus osteoarthritis knee by comparing the mechanical axis under varus stress during navigation-assisted total knee arthroplasty before and after compensating for a bone defect with the implant. Methods: Sixty-six knees that underwent total knee arthroplasty were investigated. The mechanical axis of the operated knee was evaluated under manual varus stress immediately after knee exposure and after navigation-assisted implantation. The correlation between each value of the mechanical axis and degree of preoperative varus deformity was compared by regression analysis. Results: The maximum mechanical axis under varus stress immediately after knee exposure increased in proportion to the degree of preoperative varus deformity. Moreover, the maximum mechanical axis under varus stress after implantation increased in proportion to the degree of preoperative varus deformity. Therefore, the severity of varus knee deformity leads to a progressive laxity of the lateral soft tissue. However, regression coefficients after implantation were much smaller than those measured immediately after knee exposure (0.99 vs 0.20). Based on the results of the regression formula, the postoperative laxity of the lateral soft tissue was negligible, provided that an appropriate thickness of the implant was compensated for the bone and cartilage defect in the medial compartment without changing the joint line. Conclusion: The severity of varus knee deformity leads to a progressive laxity of the lateral soft tissue. However, even if the degree of preoperative varus deformity is severe, most cases may not require additional procedures to address the residual lateral laxity.

scholarly journals Bone Cement Solidifiliation Influence the Limb Alignment and Gap Balance during TKA

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
Dongquan Shi ◽  
Xingquan Xu ◽  
Anyun Guo ◽  
Jin Dai ◽  
Zhihong Xu ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Bone Cement ◽  
Knee Arthroplasty ◽  
Mechanical Axis ◽  
Statistical Significance ◽  
Mechanical Alignment ◽  
Early Loosening ◽  
Flexion Extension ◽  
Before And After ◽  
Total Knee

Introduction. Mechanical alignment deviation after total knee arthroplasty is a major reason for early loosening of the prosthesis. Achieving optimum cement penetration during fixation of the femoral and tibial component is an essential step in performing a successful total knee arthroplasty. Bone cement is used to solidify the bone and prosthesis. Thickness imbalance of bone cement leads to the deviation of mechanical alignment. To estimate the influence of bone cement, a retrospective study was conducted.Materials and Methods. A total of 36 subjects were studied. All the TKA were performed following the standard surgical protocol for navigated surgery by medial approach with general anaesthesia. Prostheses were fixed by bone cement.Results. We compared the mechanical axis, flexion/extension, and gap balance before and after cementation. All the factors were different compared with those before and after cementation. Internal rotation was reached with statistical significance (P=0.03).Conclusion. Bone cement can influence the mechanical axis, flexion/extension, and gap balance. It also can prompt us to make a change when poor knee kinematics were detected before cementation.

Computed tomography analysis of knee pose and geometry before and after total knee arthroplasty

2012 ◽  
Vol 45 (13) ◽  
pp. 2215-2221 ◽  
Author(s):  
K.C.T. Ho ◽  
S.K. Saevarsson ◽  
H. Ramm ◽  
R. Lieck ◽  
S. Zachow ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Before And After ◽  
Total Knee ◽  
Tomography Analysis

Changes in the Functional Flexion Axis of the Knee Before and After Total Knee Arthroplasty Using a Navigation System

2014 ◽  
Vol 29 (7) ◽  
pp. 1388-1393 ◽  
Author(s):  
David A.J. Wilson ◽  
Janie L. Astephen Wilson ◽  
Glen Richardson ◽  
Michael J. Dunbar
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Navigation System ◽  
Before And After ◽  
Total Knee

In Vivo Comparison of Knee Kinematics Before and After High-Flexion Posterior Cruciate-Retaining Total Knee Arthroplasty

2010 ◽  
Vol 25 (6) ◽  
pp. 964-969 ◽  
Author(s):  
Atsushi Kitagawa ◽  
Nobuhiro Tsumura ◽  
Takaaki Chin ◽  
Kazuyoshi Gamada ◽  
Scott A. Banks ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Knee Kinematics ◽  
Cruciate Retaining ◽  
High Flexion ◽  
Before And After ◽  
Total Knee
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