Enhancing meniscal repair through biology: platelet-rich plasma as an alternative strategy.

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Abstract

[Indexed for MEDLINE] 20. BMC Musculoskelet Disord. 2026 May 11;27(1):575. doi: 10.1186/s12891-026-09881-z. Effect of insoles with different cushioning properties on knee impact after radial tear of posterior horn of medial meniscus: a finite element analysis. Jia R(1)(2), Zhang H(3), Wang J(2), Cai Z(4), Fan T(2), He X(3), Hong H(2), Li J(5). Author information: (1)Department of Rehabilitation Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China. (2)Department of Anatomy, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, National Virtual & Reality Experimental Education Center for Medical Morphology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China. (3)Zhongshan Torch Development Zone People's Hospital, Zhongshan, China. (4)School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan, China. (5)Department of Anatomy, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, National Virtual & Reality Experimental Education Center for Medical Morphology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China. lijianyi@outlook.com. The posterior horns of the medial menisci are more commonly injured during exercise. Cushioning insoles are one of the most widely used conservative interventions for preventing knee joint injuries. However, the effect of the cushion property of insoles on the knee joints with meniscal tears remain unknown. We investigated the effects of insoles with different cushioning properties on the knee joint following a radial tear of the posterior horn of the medial meniscus. Full extension landing with a heel-first strike pattern was performed by 12 participants randomly wearing ethylene vinyl acetate (EVA) and artificial cartilage foam (ACF) insoles, and the peak plantar pressures (pPP) were measured. The right knee of the participant whose pPP was closest to the median was loaded to a finite element model with radial tear. The pPP of EVA insoles (2386.42 ± 298.29 N) was higher than that of ACF (2174.16 ± 270.63 N) (t = 7.84, P