Biomechanics of Knee Joints after Anterior Cruciate Ligament Reconstruction

He, Chao; He, Wu; Liu, Yanlin; Wang, Fuke; Lü, Tong; Jia, Di; Wang, Guoliang; Zheng, Jiali; Chen, Guang-Chao

doi:10.1055/s-0037-1603799

Cited by 11 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We developed a detailed FE model of the knee joint with bones, cartilages, menisci, and main ligaments to evaluate the biomechanical changes after longitudinal tears at different horns of the meniscus. The results of compressive and shear stress of the healthy knee under static stance simulation were compared to previous studies (Table 3) [22–26]. The compressive stress on the menisci of our intact knee model was slightly higher than those of previous studies.…”

Section: Discussionmentioning

confidence: 70%

The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis

Zhang

Lijun

et al. 2019

J Orthop Surg Res

View full text Add to dashboard Cite

Background Meniscal horns are important structures of meniscus, and longitudinal tears of these places could significantly change the load distribution among the knee joint. Few studies concerned the stress concentrated on bones, which may induce the osteonecrosis of subchondral bone. The goal of this study was to construct a finite element (FE) model with high fidelity of the knee joint and evaluate the biomechanical changes of load distribution of components after longitudinal tears of the horns of meniscus. Methods Computed tomography and magnetic resonance images were used to develop the FE model, and two different kinds of simulations, the vertical and the anterior load, mimicking the static stance and slight flexion simulations, were applied after longitudinal tears of the horns of meniscus. Results Significantly elevated peak compressive and shear stress was observed on the menisci, cartilages, and subchondral bones, and enlarged meniscus extrusion was noticed. Between all the four types of longitudinal tears investigated in this study, longitudinal tears at the posterior horn of the medial meniscus were found to be the most significant. Conclusions These findings showed that longitudinal tears of the meniscal horns lead to increased magnitude and changed distribution of stress and indicated the important role of posterior horn of medial meniscus. This may contribute to the mechanism between meniscal tears and spontaneous subchondral bone osteonecrosis. Electronic supplementary material The online version of this article (10.1186/s13018-019-1255-1) contains supplementary material, which is available to authorized users.

show abstract

Section: Discussionmentioning

confidence: 70%

The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis

Zhang

Lijun

et al. 2019

J Orthop Surg Res

View full text Add to dashboard Cite

show abstract

“…Moreover, it is considered impossible to experimentally measure the whole three-dimensional state of the forces within the joint. In human medicine, FE-based computer modeling has been broadly used to investigate the biomechanics of knee joints to overcome the limitations and difficulties faced in cadaveric or in vivo studies [15,16,19,22,23]. Additionally, computer modeling is a method that avoids ethical problems related to animal use and has been increasingly used in veterinary research [20,21,[24][25][26].…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, FEM is suitable for parametric analyses in which the effect of specific parameters are investigated in a controlled manner [16]. FEM has been widely used in human medicine as an alternative to cadaveric and in vivo biomechanical experiments [17][18][19]. Recently, FEM has also been increasingly frequently used in veterinary medicine [20,21].…”

Section: Introductionmentioning

confidence: 99%

Biomechanical analysis of canine medial patellar luxation with femoral varus deformity using a computer model

et al. 2020

View full text Add to dashboard Cite

Background Femoral varus deformities complicating the realignment of the quadriceps muscles are frequently associated with medial patellar luxation (MPL) in dogs. Therefore, distal femoral osteotomy (DFO) is recommended in dogs affected with severe MPL and a distal femoral varus deformity. The presence of an anatomic lateral distal femoral angle (aLDFA) of ≥ 102° has been anecdotally recommended as an indication for performing corrective DFO in large-breed dogs. However, the effect of a femoral varus deformity on MPL has not been scientifically evaluated. We aimed to evaluate the influence of a femoral varus deformity on MPL using a finite element method based computer model. Three-dimensionally reconstructed computed tomographic images of a normal femur from a Beagle dog were deformed using meshing software to create distal varus deformities. A total of thirteen aLDFAs, including 95°, 98° and 100°–110°, were simulated. The patellar positions and reaction force between the patella and trochlear grooves were calculated for all finite element models under constant rectus femoris muscle activation. Results The patella was displaced medially from the trochlear groove at an aLDFA of ≥103°. With an aLDFA of 103° to 110°, the reaction force was equal to zero and then decreased to negative values during the simulation, while other models with aLDFAs of 95°, 98°, and 100°-102° had positive reaction force values. The patella began to luxate at 24.90 seconds (sec) with an aLDFA of 103°, 19.80 sec with an aLDFA of 104°, 21.40 sec with an aLDFA of 105°, 20.10 sec with an aLDFA of 106°, 18.60 sec with an aLDFA of 107°, 15.30 sec with an aLDFA of 108°, 16.60 sec with an aLDFA of 109°, and 11.90 sec with an aLDFA of 110°. Conclusion Severe distal femoral varus with an aLDFA of ≥103° caused MPL when other anatomical factors were controlled. Thissimplified computer model provides complementary information to anecdotal cutoffs for DFO, hence it should be applied to clinical patients with caution.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Therefore, FEM is suitable for parametric analyses in which the effect of speci c parameters are investigated in a controlled manner [16]. FEM has been widely used in human medicine as an alternative to cadaveric and in vivo biomechanical experiments [17][18][19]. Recently, FEM has also been increasingly frequently used in veterinary medicine [20,21].…”

Section: Introductionmentioning

confidence: 99%

Biomechanical analysis of canine medial patellar luxation with femoral varus deformity using a computer model

Lee

Sim

Jeong

et al. 2020

Preprint

View full text Add to dashboard Cite

Background Femoral varus deformities complicating the realignment of the quadriceps muscles are frequently associated with medial patellar luxation (MPL) in dogs. Therefore, distal femoral osteotomy (DFO) is recommended in dogs affected with severe MPL and a distal femoral varus deformity. The presence of an anatomic lateral distal femoral angle (aLDFA) of ≥ 102° has been anecdotally recommended as an indication for performing corrective DFO in large-breed dogs. However, the effect of a femoral varus deformity on MPL has not been scientifically evaluated. We aimed to evaluate the influence of a femoral varus deformity on MPL using a finite element method based computer model. Three-dimensionally reconstructed computed tomographic images of a normal femur from a Beagle dog were deformed using meshing software to create distal varus deformities. A total of thirteen aLDFAs, including 95°, 98° and 100°–110°, were simulated. The patellar positions and reaction force between the patella and trochlear grooves were calculated for all finite element models under constant rectus femoris muscle activation.Results: The patella was displaced medially from the trochlear groove at an aLDFA of ≥103°. With an aLDFA of 103° to 110°, the reaction force was equal to zero and then decreased to negative values during the simulation, while other models with aLDFAs of 95°, 98°, and 100°-102° had positive reaction force values. The patella began to luxate at 24.90 seconds (sec) with an aLDFA of 103°, 19.80 sec with an aLDFA of 104°, 21.40 sec with an aLDFA of 105°, 20.10 sec with an aLDFA of 106°, 18.60 sec with an aLDFA of 107°, 15.30 sec with an aLDFA of 108°, 16.60 sec with an aLDFA of 109°, and 11.90 sec with an aLDFA of 110°.Conclusion: Severe distal femoral varus with an aLDFA of ≥103° caused MPL when other anatomical factors were controlled. This simplified computer model provides complementary information to anecdotal cutoffs for DFO, hence it should be applied to clinical patients with caution.

show abstract

Biomechanics of Knee Joints after Anterior Cruciate Ligament Reconstruction

Cited by 11 publications

References 29 publications

The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis

The biomechanical changes of load distribution with longitudinal tears of meniscal horns on knee joint: a finite element analysis

Biomechanical analysis of canine medial patellar luxation with femoral varus deformity using a computer model

Biomechanical analysis of canine medial patellar luxation with femoral varus deformity using a computer model

Contact Info

Product

Resources

About