Does the rectus femoris nerve block improve knee recurvatum in adult stroke patients? A kinematic and electromyographic study

Gross, Raphaël; Delporte, Ludovic; Arsenault, Lisette; Revol, Patrice; Lefèvre, Mathilde; Clévenot, Dominique; Boisson, Dominique; Mertens, Patrick; Rossetti, Yves; Luauté, Jacques

doi:10.1016/j.gaitpost.2013.10.008

Cited by 23 publications

(15 citation statements)

References 22 publications

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“…Combinations of different methods are frequently employed (Gross et al, 2014). When kinematic and kinetic analyses are combined, inverse dynamics can then be used to obtain variables such as resultant moments of forces or powers commercially available software (e.g., Vicon, Qualisys, Elite), the software provided by the force plate manufacturers may not be best suited for a routine assessment of a large amount of variables.…”

Section: Introductionmentioning

confidence: 99%

System of gait analysis based on ground reaction force assessment

Vaverka¹,

Elfmark²,

Svoboda³

et al. 2015

Acta Gymnica

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Background: Biomechanical analysis of gait employs various methods used in kinematic and kinetic analysis, EMG, and others. One of the most frequently used methods is kinetic analysis based on the assessment of the ground reaction forces (GRF) recorded on two force plates. Objective: The aim of the study was to present a method of gait analysis based on the assessment of the GRF recorded during the stance phase of two steps. Methods: The GRF recorded with a force plate on one leg during stance phase has three components acting in directions: Fx -mediolateral, Fy -anteroposterior, and Fz -vertical. A custom-written MATLAB script was used for gait analysis in this study. This software displays instantaneous force data for both legs as Fx(t), Fy(t) and Fz(t) curves, automatically determines the extremes of functions and sets the visual markers defining the individual points of interest. Positions of these markers can be easily adjusted by the rater, which may be necessary if the GRF has an atypical pattern. The analysis is fully automated and analyzing one trial takes only 1-2 minutes. Results: The method allows quantification of temporal variables of the extremes of the Fx(t), Fy(t), Fz(t) functions, durations of the braking and propulsive phase, duration of the double support phase, the magnitudes of reaction forces in extremes of measured functions, impulses of force, and indices of symmetry. The analysis results in a standardized set of 78 variables (temporal, force, indices of symmetry) which can serve as a basis for further research and diagnostics. Conclusions: The resulting set of variable offers a wide choice for selecting a specific group of variables with consideration to a particular research topic. The advantage of this method is the standardization of the GRF analysis, low time requirements allowing rapid analysis of a large number of trials in a short time, and comparability of the variables obtained during different research measurements.

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Section: Introductionmentioning

confidence: 99%

System of gait analysis based on ground reaction force assessment

Vaverka¹,

Elfmark²,

Svoboda³

et al. 2015

Acta Gymnica

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“…Treatment approaches for GR that have not incorporated the underlying biomechanical etiologic factor have had mixed results. For example, in a retrospective study of GR (N = 6 subjects), 2% lidocaine was used to achieve a rectus femoris nerve block, but this intervention did not result in significant improvement in knee hyperextension [16]. In a case cohort study of acute and chronic phase stroke patients with PF spasticity, injection of botulinum into the triceps surae resulted in a trend toward decreased knee hyperextension, but this trend was not significant [17].…”

Section: Discussionmentioning

confidence: 99%

“…Causes of GR are complex and multifactorial, and their relative contributions are debated [1,13‐16]. In patients with hemiparesis, both proximal and distal biomechanical factors can occur individually or in combination [1].…”

Section: Introductionmentioning

confidence: 99%

“…No standard algorithm currently exists to determine treatment for patients with GR, and strategies to manage GR vary widely. Reported strategies to ameliorate GR in the heterogeneous stroke population include medical, orthotic, and rehabilitation‐based approaches, and in a small number of patients, surgical approaches [1,7,16,17,22‐25]. Medical therapy, which includes injection of botulinum A toxin into quadriceps or triceps surae, is common for hemiplegic gait abnormalities.…”

Section: Introductionmentioning

confidence: 99%

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Treatment Strategies for Genu Recurvatum in Adult Patients With Hemiparesis: A Case Series

Appasamy

Witt

Patel

et al. 2014

PM&R

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“…It has been reported that between 40% and 68% of poststroke patients who regain walking ability experience genu recurvatum—that is, knee hyperextension—during stance phase [2,3]. The presence of spasticity or muscle weakness may cause knee hyperextension, although in a recent study [4] in which a nerve block targeting rectus femoris muscle activity was administered, genu recurvatum was not prevented.…”

Section: Introductionmentioning

confidence: 99%