NDLI: Does higher knee hyperextension in patients with hemiplegia affect lateral and medial meniscus volume in the paretic leg? A cross-sectional study

Content Provider	Springer Nature : BioMed Central
Author	Li, Wenshan Li, Tiancong Xi, Xiaoshuang Zhang, Rong Sun, Weishuang Zhang, Dan Gong, Weijun
Abstract	Background After stroke, an abnormal gait pattern gradually leads to knee pain and joint lesions, resulting the gait instability. However, the correlation between the knee hyperextension and gait pattern, the meniscus volume, and the water content of meniscus in paretic and non-paretic legs has not been fully investigated. Moreover, most of physicians tend to ignore this knee hyperextension. This study attempted to emphasize the importance of knee hyperextension using gait analysis and Magnetic resonance imaging (Trial registration number ChiCTR2000039641, date of registration 04/11/2020). Methods Eight patients with chronic hemiplegic (6 male, 2 female) volunteered to participate in this study. Participants was recruited if they had a hemiplegia following a stroke occurring more than 6 months, had an ability to walk 10 m without aids, had a Function Ambulation Category level at least 3 and above, and had a hemiplegic lower extremity identified as Brunnstrom state III or above identification. The spatial–temporal gait parameters and kinematic parameters in the paretic and the non-paretic legs and the percentage of free water content in deep and shallow layers. Results Longer time since hemiplegia led to larger angles of knee hyperextension (R = 0.56, p = 0.016), larger angles of knee hyperextension led to more tears in meniscus (R = − 0.53, − 0,57 and − 0.70), and larger angles of knee hyperextension decreased water content of the lateral meniscus in the non-paretic leg (R = − 0.91) but increased water content of the medial meniscus (R = 0.53 and 0.63). Conclusions The knee hyperextension could not be ignored by physicians and needed to be diagnosed and treated as early as possible, the time since hemiplegia could be an indicator of sign of knee hyperextension.
Related Links	https://bmcsportsscimedrehabil.biomedcentral.com/counter/pdf/10.1186/s13102-022-00611-1.pdf
Ending Page	9
Page Count	9
Starting Page	1
File Format	HTM / HTML
ISSN	20521847
DOI	10.1186/s13102-022-00611-1
Journal	BMC Sports Science, Medicine and Rehabilitation
Issue Number	1
Volume Number	15
Language	English
Publisher	BioMed Central
Publisher Date	2023-01-05
Access Restriction	Open
Subject Keyword	BMC Sports Science Medicine and Rehabilitation Sports Medicine Orthopedics Rehabilitation Medicine Knee hyeprextension Hemiplegia Meniscus
Content Type	Text
Resource Type	Article
Subject	Physical Therapy, Sports Therapy and Rehabilitation Rehabilitation Orthopedics and Sports Medicine
Journal Impact Factor	2.1/2023
5-Year Journal Impact Factor	2.3/2023

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