Comparison of joint line position changes after primary bilateral total knee arthroplasty performed using the navigation-assisted measured gap resection or gap balancing techniques

2011 ◽  
Vol 19 (12) ◽  
pp. 2027-2032 ◽  
Author(s):  
Han Jun Lee ◽  
Jae Sung Lee ◽  
Ho Joong Jung ◽  
Kwang Sup Song ◽  
Jae Jun Yang ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Joint Line ◽  
Line Position ◽  
Bilateral Total Knee Arthroplasty ◽  
Gap Balancing ◽  
Total Knee

Comparison of Gap Balancing vs Measured Resection Technique in Patients Undergoing Simultaneous Bilateral Total Knee Arthroplasty: One Technique per Knee

2020 ◽  
Vol 35 (3) ◽  
pp. 732-740 ◽  
Author(s):  
Sachin R. Tapasvi ◽  
Anshu Shekhar ◽  
Shantanu S. Patil ◽  
Matthew V. Dipane ◽  
Madhav Chowdhry ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Bilateral Total Knee Arthroplasty ◽  
Gap Balancing ◽  
Measured Resection ◽  
Total Knee

How Frequently Do Five Total Arthroplasty Methods Change the Alignment of the Joint Lines and Limb From Normal?

2012 ◽  
Author(s):  
Yu S. Gu ◽  
Joshua D. Roth ◽  
Stephen M. Howell ◽  
Maury L. Hull
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Mechanical Axis ◽  
Joint Line ◽  
Coronal Plane ◽  
Mechanical Alignment ◽  
Gap Balancing ◽  
Total Arthroplasty ◽  
Straight Line ◽  
Total Knee

One strategy for aligning the limb and positioning components in total knee arthroplasty (TKA) in the coronal plane is mechanical alignment, which has the goal of positioning the center of the hip, knee, and ankle on a straight-line by establishing a femoral and tibial joint line at the knee that is perpendicular to the mechanical axis of the femur and tibia respectively. Another strategy is gap balancing, which has the goal of creating equal gaps between the medial and lateral compartments at 0° of extension and 90° of flexion.

Joint line position in revision total knee arthroplasty: the role of posterior femoral off-set stems

The Knee ◽  
2013 ◽  
Vol 20 (6) ◽  
pp. 447-450 ◽  
Author(s):  
Massimo Innocenti ◽  
Fabrizio Matassi ◽  
Christian Carulli ◽  
Stefano Soderi ◽  
Marco Villano ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Revision Total Knee Arthroplasty ◽  
Joint Line ◽  
Line Position ◽  
Total Knee

scholarly journals Factors Affecting Squatting Ability in Total Knee Arthroplasty Using High Flexion Prosthesis

2021 ◽  
Author(s):  
Tiejian Li ◽  
Jingyang Sun ◽  
Yinqiao Du ◽  
Zhisen Gao ◽  
Haiyang Ma ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Influencing Factors ◽  
Knee Arthroplasty ◽  
Univariate Analysis ◽  
Joint Line ◽  
Line Position ◽  
P Values ◽  
Factors Affecting ◽  
Group I ◽  
Total Knee

Abstract Background: Total knee arthroplasty (TKA) is widely used as a treatment for knee osteoarthritis. Few studies have analyzed the factors affecting squatting ability of patients after TKA. The purpose of this study is to comprehensively analyze the factors affecting squatting ability after TKA and to determine which important factors should be paid attention to.Methods: Three hundred primary TKA cases with a minimum 3-year follow-up were retrospectively analyzed. All patients received a conventional posterior-stabilized TKA implant and underwent a standard perioperative care pathway. The patients were divided into two groups according to the knee flexion angle (Group I -squatting group, Group II - inability squatting group). Demographic, operative, and clinical data were collected. Radiographic assessment included joint line joint line elevation, patella position, posterior condylar offset (PCO) , etc. Statistical analysis of effect of all the above factors on squatting ability was done. Results: The univariate analysis showed age, prosthesis size, preoperative ROM and joint line position were correlated with squatting ability (p-values ≤0.10). In the final multivariate analysis, joint line position and preoperative ROM were independent influencing factors that affecting squatting ability after TKA (p-values < 0.01). Conclusion: Preoperative ROM and joint line position were independent influencing factors affecting squatting ability after TKA. Patients should be counseled accordingly and made to understand these factors. In order to ensure patients can squat postoperatively, we should improve surgical techniques to control joint line elevation.

Medial stabilizing technique preserves anatomical joint line and increases range of motion compared with the gap-balancing technique in navigated total knee arthroplasty

The Knee ◽  
2020 ◽  
Vol 27 (2) ◽  
pp. 558-564
Author(s):  
Kyota Ishibashi ◽  
Eiji Sasaki ◽  
Shizuka Sasaki ◽  
Yuka Kimura ◽  
Yuji Yamamoto ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Range Of Motion ◽  
Knee Arthroplasty ◽  
Joint Line ◽  
Gap Balancing ◽  
Total Knee

scholarly journals A new method for evaluation of patellar height and the position of the joint line before and after total knee arthroplasty

2020 ◽  
Author(s):  
Hua Han ◽  
Xiaohui Zhang
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Measurement Method ◽  
Intraclass Correlation ◽  
Patellar Height ◽  
Joint Line ◽  
New Method ◽  
Line Position ◽  
Before And After ◽  
Total Knee

Abstract Background: The measurement of patellar height and restoration of the natural position of the joint line are crucial to total knee arthroplasty (TKA). However, there remains a lack of consensus on an optimal measurement method to associate the patellar height with the joint line position. The objective of this study was to introduce a new method and validate the application in TKA both preoperatively and postoperatively.Methods: Instead of taking marginal landmarks as the tibial references, the tibial shaft axis was used to construct the new measurement method, which comprises the axis-patella (AP), joint axis-patella (jAP) indices and joint line height (JLH). Patellar heights were measured using the Insall-Salvati (IS), modified Insall-Salvati (mIS), Blackburne-Peel (BP), Caton-Deschamps (CD) indices, and the new method in 175 knees both preoperatively and postoperatively. Intraclass correlation coefficients and Pearson’s correlation analyses were respectively used to evaluate the reliabilities and correlations.Results: There were good correlations between the proposed method and the mIS, CD, and BP indices. High inter-observer reproducibility was found for AP (preoperative and postoperative 0.83), jAP (preoperative 0.82; postoperative 0.86) indices and JLH (preoperative 0.88; postoperative 0.95). High intra-observer repeatability was also found for AP (preoperative 0.85; postoperative 0.87), jAP (preoperative 0.83; postoperative 0.87) indices and JLH (preoperative 0.80; postoperative 0.92).Conclusions: The new method is reliable for measuring patellar height before and after TKA, providing an alternative to distinguish between true and pseudo patella baja. Furthermore, JLH can be applied to assess and restore the joint line position in TKA.

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