A Morphometric Fixed-Bearing Unicompartmental Knee Arthroplasty Can Reproduce Normal Knee Kinematics. An In Vitro Robotic Evaluation

Bandi, Marc; Benazzo, Francesco; Batailler, Cécile; Blatter, Iris; Siggelkow, Eik; Parratte, Sébastien

doi:10.1016/j.artd.2022.02.023

Cited by 3 publications

(2 citation statements)

References 33 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…UKA is a less invasive procedure, as it keeps most of the native anatomical structures. On cadaver knees, it has been shown that UKA reproduces normal knee kinematics (Bandi et al 2022). The aim of this study was to assess if indeed UKA reproduces native kinematics in terms of knee joint pivot motion.…”

Section: Introductionmentioning

confidence: 98%

Simulated Increase in Monoarticular Hip Muscle Strength Reduces the First Peak of Knee Compression Forces During Walking

Jolas,

Simonsen,

Andersen

2023

Journal of Biomechanical Engineering

View full text Add to dashboard Cite

Reducing compressive knee contact forces (KCF) during walking could slow the progression of knee osteoarthritis. A previous study has shown that compensating for the hip flexion/extension moment could reduce the KCF peak occurring during early-stance (KCFp1). Therefore, this study aimed to identify if monoarticular hip muscle could allow this compensation while considering different walking strategies. Gait trials from 24 healthy participants were used to make musculoskeletal models. Five load-cases were examined: (I) Normal, (II) with an applied external moment compensating for the hip flexion/extension moment, (III-V) three conditions with isolated/combined 30% increase of isometric strength of gluteus medius and maximus. KCF, hip muscle forces, and joint moments were computed. A cluster analysis of the Normal condition was performed with hip and knee flexion/extension moment during KCFp1 as input to examine the influence of walking strategies. The cluster analysis revealed two groups having different hip and knee moments in early-stance [p<0.01]. The reduction in KCFp1 from the normal condition, although present in both groups, was greater for the group with the highest hip and lowest knee flexion/extension moments for all conditions (II: -6.03% versus -21.82% [p<0.001], III: -3.21% versus -1.59%, IV: -3.00% versus -1.76%, V: -6.12 versus -3.09%). This reduction in KCFp1 occurred through a shift in force developed by the hamstrings to the gluteus medius and maximus. Differences between groups suggest that this reduction depends on the walking strategy.

show abstract

Section: Introductionmentioning

confidence: 98%

Simulated Increase in Monoarticular Hip Muscle Strength Reduces the First Peak of Knee Compression Forces During Walking

Jolas,

Simonsen,

Andersen

2023

Journal of Biomechanical Engineering

View full text Add to dashboard Cite

show abstract

“…In vitro biomechanical tests on cadaveric specimens have the unique advantages of being less time-consuming, having controllable experimental variables, and avoiding ethical issues in vivo, among others [ 1 , 2 , 3 ]. They are widely used to investigate new surgical procedures [ 4 , 5 ], test implants or instruments [ 6 , 7 , 8 ], and guide rehabilitation exercises [ 9 , 10 ]. Currently, biomechanical testing on specimens is mostly carried out in two main methods, “displacement-controlled” or “load-controlled”.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of a Novel In Vitro Joint Testing System for Reproduction of In Vivo Dynamic Muscle Force

Yang,

Wang,

Zheng

et al. 2023

Bioengineering

View full text Add to dashboard Cite

In vitro biomechanical experiments utilizing cadaveric specimens are one of the most effective methods for rehearsing surgical procedures, testing implants, and guiding postoperative rehabilitation. Applying dynamic physiological muscle force to the specimens is a challenge to reconstructing the environment of bionic mechanics in vivo, which is often ignored in the in vitro experiment. The current work aims to establish a hardware platform and numerical computation methods to reproduce dynamic muscle forces that can be applied to mechanical testing on in vitro specimens. Dynamic muscle loading is simulated through numerical computation, and the inputs of the platform will be derived. Then, the accuracy and robustness of the platform will be evaluated through actual muscle loading tests in vitro. The tests were run on three muscles (gastrocnemius lateralis, the rectus femoris, and the semitendinosus) around the knee joint and the results showed that the platform can accurately reproduce the magnitude of muscle strength (errors range from −6.2% to 1.81%) and changing pattern (goodness-of-fit range coefficient ranges from 0.00 to 0.06) of target muscle forces. The robustness of the platform is mainly manifested in that the platform can still accurately reproduce muscle force after changing the hardware combination. Additionally, the standard deviation of repeated test results is very small (standard ranges of hardware combination 1: 0.34 N~2.79 N vs. hardware combination 2: 0.68 N~2.93 N). Thus, the platform can stably and accurately reproduce muscle forces in vitro, and it has great potential to be applied in the future musculoskeletal loading system.

show abstract

A morphometric medial compartment-specific unicompartmental knee system: 5 years follow up results from a pilot center

Sangaletti,

Meschini,

Capece

et al. 2024

The Knee

View full text Add to dashboard Cite

A Morphometric Fixed-Bearing Unicompartmental Knee Arthroplasty Can Reproduce Normal Knee Kinematics. An In Vitro Robotic Evaluation

Cited by 3 publications

References 33 publications

Simulated Increase in Monoarticular Hip Muscle Strength Reduces the First Peak of Knee Compression Forces During Walking

Simulated Increase in Monoarticular Hip Muscle Strength Reduces the First Peak of Knee Compression Forces During Walking

Development and Validation of a Novel In Vitro Joint Testing System for Reproduction of In Vivo Dynamic Muscle Force

A morphometric medial compartment-specific unicompartmental knee system: 5 years follow up results from a pilot center

Contact Info

Product

Resources

About