Estimation of Tibiofemoral Joint Contact Forces Using Foot Loads during Continuous Passive Motions.

Yunlong Yang, Huixuan Huang, Junlong Guo, Fei Yu, Yufeng Yao

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Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Yunlong YangState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.

Huixuan HuangOrthopaedical Rehabilitation Centre, Weihai Municipal Hospital, Weihai 264209, China.

Junlong GuoDepartment of Mechanical Engineering, School of Naval Architecture and Ocean Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, China.

Fei YuDepartment of Neurology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China.

Yufeng YaoState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.ORCID 0000-0001-9595-4322

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Continuous passive motion (CPM) machines are commonly used after various knee surgeries, but information on tibiofemoral forces (TFFs) during CPM cycles is limited. This study aimed to explore the changing trend of TFFs during CPM cycles under various ranges of motion (ROM) and body weights (BW) by establishing a two-dimensional mathematical model. TFFs were estimated by using joint angles, foot load, and leg−foot weight. Eleven healthy male participants were tested with ROM ranging from 0° to 120°. The values of the peak TFFs during knee flexion were higher than those during knee extension, varying nonlinearly with ROM. BW had a significant main effect on the peak TFFs and tibiofemoral shear forces, while ROM had a limited effect on the peak TFFs. No significant interaction effects were observed between BW and ROM for each peak TFF, whereas a strong linear correlation existed between the peak tibiofemoral compressive forces (TFCFs) and the peak resultant TFFs (R2 = 0.971, p < 0.01). The proposed method showed promise in serving as an input for optimizing rehabilitation devices.

Indexed as

FootKnee JointBiomechanical PhenomenaHumansKneeMaleRange of Motion, ArticularStress, MechanicalCPMranges of motionrehabilitationtibiofemoral forces

Identifiers

PMID35808441

DOI10.3390/s22134947

PMCPMC9269803

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