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Research article
Is There an Advantage with Measured Resection for Femoral Rotation Resection in TKA? A Randomized Controlled Trial
Xiang-Yang Chen
Affiliated Hospital of Xuzhou Medical University
Corresponding Author
ORCiD: https://orcid.org/0000-0001-7376-6179
Shuo Feng
affiliated hospital of xuzhou medical university
Corresponding Author
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
Total knee arthroplasty (TKA) is performed by gap balance (GB) and measured resection (MR) techniques for femoral rotation resection to achieve knee flexion balance and knee stability. It is still controversial to choose which technique is more advantageous. The purpose of this study was to compare the early clinical efficacy of GB and MR in TKA.
Methods
This study was a prospective randomized, double-blind controlled trial. From March 2018 to March 2019, 99 patients (99 knees) who underwent TKA at our institution were randomly treated with GB and MR. The cutting thickness of posterior condyle, radiographic findings, medial and lateral compartment pressure, gait analysis, and patients satisfaction were recorded.
Results
A total of 110 patients were enrolled for unilateral THA. Finally, 99 patients were included for analysis and comparison at 12 months follow-up. In GB group, the angle of Cutting Block to PCA was significantly lower than in the MR group (P<0.001) and the cutting thickness of the medial and lateral condyle was significantly higher than in the MR group (P<0.05). Medial compartment pressure was significantly higher than lateral compartment at 90° flexion and full flexion in MR (P<0.05). In GB group, Sagittal max knee flexion range and transversal knee rotation range was significantly was significantly larger than that in the MR group (P<0.05). In level of satisfaction at the most recent follow-up, there was no significant difference between the two groups (p>0.05).
Conclusion
In TKA, GB or MR techniques for femoral external resection has little effect on daily walking. However, the GB technique has advantages in early postoperative knee stability and knee flexion function improvement.
Keywords
Total knee arthroplasty, gap balance, gait analysis, eLIBRA sensor
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This is a preprint. It has not completed peer review.
Research article
Is There an Advantage with Measured Resection for Femoral Rotation Resection in TKA? A Randomized Controlled Trial
Xiang-Yang Chen
Affiliated Hospital of Xuzhou Medical University
Corresponding Author
ORCiD: https://orcid.org/0000-0001-7376-6179
Shuo Feng
affiliated hospital of xuzhou medical university
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 19 Dec, 2019
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedics
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
Total knee arthroplasty (TKA) is performed by gap balance (GB) and measured resection (MR) techniques for femoral rotation resection to achieve knee flexion balance and knee stability. It is still controversial to choose which technique is more advantageous. The purpose of this study was to compare the early clinical efficacy of GB and MR in TKA.
Methods
This study was a prospective randomized, double-blind controlled trial. From March 2018 to March 2019, 99 patients (99 knees) who underwent TKA at our institution were randomly treated with GB and MR. The cutting thickness of posterior condyle, radiographic findings, medial and lateral compartment pressure, gait analysis, and patients satisfaction were recorded.
Results
A total of 110 patients were enrolled for unilateral THA. Finally, 99 patients were included for analysis and comparison at 12 months follow-up. In GB group, the angle of Cutting Block to PCA was significantly lower than in the MR group (P<0.001) and the cutting thickness of the medial and lateral condyle was significantly higher than in the MR group (P<0.05). Medial compartment pressure was significantly higher than lateral compartment at 90° flexion and full flexion in MR (P<0.05). In GB group, Sagittal max knee flexion range and transversal knee rotation range was significantly was significantly larger than that in the MR group (P<0.05). In level of satisfaction at the most recent follow-up, there was no significant difference between the two groups (p>0.05).
Conclusion
In TKA, GB or MR techniques for femoral external resection has little effect on daily walking. However, the GB technique has advantages in early postoperative knee stability and knee flexion function improvement.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5