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Gait plate orthotic

Discussion in 'Biomechanics, Sports and Foot orthoses' started by Freddy physio, Feb 19, 2019.

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  1. Freddy physio

    Freddy physio Welcome New Poster


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    New here, can’t seem to find much info out there on gait plate orthotics. Is anyone able to shine some light on how they work/if they work?
    I appear quite in-toed myself and have quite a lot of bilateral hip pathology.
    Thanks
     
  2. efuller

    efuller MVP

    I find the logic behind "gait plates" dubious. A gait for intoeing is supposed to have an extension on the lateral side out under the lateral metatarsal heads. The theory behind this is that plate is supposed to prevent the normal bending at the lateral MPJ and this is supposed to force the leg to turn external.

    The problem is that this will not necessarily apply any external rotation moments to the leg. The moments that create any change are more likely supplied by the person's musculature. That is the person decides that they don't like walking of a plate under their foot that does not bend, and then uses muscles to change the angle of gait. The person could choose to be more internal, more external, or not change their angle of gait.

    Even if the gait plate mechanically changed the angle of gait, this could be a problem. If your maximally externally rotated position was still internal, then trying to externally rotate your leg would be trying to force your hip beyond its end of range of motion.
     
  3. Craig Payne

    Craig Payne Moderator

    Articles:
    6
  4. GavinJohnston

    GavinJohnston Member

    Hi There
    whats the best method for measuring tibial torsion
    I am familiar with gravity goniometer, but was wondering if this is the clinical gold standard ?( and femoral ante version etc)
    regards
    Gav
     
  5. https://www.ncbi.nlm.nih.gov/m/pubmed/15346263/?i=2&from=/1934735/related

    Abstract

    PURPOSE: To determine variability between clinical goniometric methods and computed tomography (CT) in measuring posttraumatic malrotation of the tibia.

    MATERIALS AND METHODS: In a prospective study, absolute tibial torsion of both legs after unilateral fracture of the tibia as well as the difference between both legs (intra-individual torsional difference) was postoperatively determined with two goniometric and two CT methods in 40 patients (female : male = 16 : 24, mean age = 46 +/- 34 years).

    RESULTS: The mean difference between goniometric and CT methods in determining intra-individual torsional difference was not significant. Nevertheless, variance of values was higher in goniometric measurement (up to +/- 11 degree), with the measurements of torsional difference showing two times greater standard deviation in interobserver variability of goniometric methods as compared to CT.

    CONCLUSION: Goniometric methods do not significantly differ from the CT methods for determination of intraindividual torsional difference. The higher variance of interobserver values limits accuracy of goniometric methods. Therefore, goniometric determination of tibial torsion can only be considered an estimate but not a precise measurement.

    Not sure Gait plates are used with any frequency anymore. They just don't do what they say they do on the outside of the box
     
  6. efuller

    efuller MVP

    You don't necessarily need the best method. You need accurate enough for intended use. Which brings the question of what do you intend to use this measurement for?
     
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