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The impact of patellar tendon advancement on knee joint moment and muscle forces in patients with cerebral palsy

Background: Patellar tendon advancement (PTA) is performed for the treatment of crouch gait in patients with cerebral palsy (CP). In this study, we aimed to determine the influence of PTA in the context of single-event multilevel surgery (SEMLS) on knee joint moment and muscle forces through musculo...

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Main Authors: Karabulut, Derya (Author) , Arslan, Yunus Ziya (Author) , Götze, Marco (Author) , Wolf, Sebastian Immanuel (Author)
Format: Article (Journal)
Language:English
Published: 9 September 2021
In: Life
Year: 2021, Volume: 11, Issue: 9, Pages: 1-15
ISSN:2075-1729
DOI:10.3390/life11090944
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3390/life11090944
Verlag, lizenzpflichtig, Volltext: https://www.mdpi.com/2075-1729/11/9/944
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Author Notes:Derya Karabulut, Yunus Ziya Arslan, Marco Götze and Sebastian I. Wolf
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Summary:Background: Patellar tendon advancement (PTA) is performed for the treatment of crouch gait in patients with cerebral palsy (CP). In this study, we aimed to determine the influence of PTA in the context of single-event multilevel surgery (SEMLS) on knee joint moment and muscle forces through musculoskeletal modeling; Methods: Gait data of children with CP and crouch gait were retrospectively analyzed. Patients were included if they had a SEMLS with a PTA (PTA group, n = 18) and a SEMLS without a PTA (NoPTA group, n = 18). A musculoskeletal model was used to calculate the pre- and postoperative knee joint moments and muscle forces; Results: Knee extensor moment increased in the PTA group postoperatively (p = 0.016), but there was no statistically significant change in the NoPTA group (p > 0.05). The quadriceps muscle forces increased for the PTA group (p = 0.034), while there was no difference in the NoPTA group (p > 0.05). The hamstring muscle forces increased in the PTA group (p = 0.039), while there was no difference in the NoPTA group (p > 0.05); Conclusions: PTA was found to be an effective surgery for the treatment of crouch gait. It contributes to improving knee extensor moment, decreasing knee flexor moment, and enhancing the quadriceps and hamstring muscle forces postoperatively.
Item Description:This article belongs to the special issue "Modelling and simulation of human locomotion"
Gesehen am 17.11.2021
Physical Description:Online Resource
ISSN:2075-1729
DOI:10.3390/life11090944

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