EOTTS - HyProCure and Plantar Fasciopathy
 

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EOTTS - HyProCure and Plantar Fasciopathy

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Talotarsal displacement leads to increased strain to the medial band of the plantar fascia. Type II Extra-Osseous TaloTarsal Stabilization with HyProCure led to a 33% decrease in strain to the medial ...

Talotarsal displacement leads to increased strain to the medial band of the plantar fascia. Type II Extra-Osseous TaloTarsal Stabilization with HyProCure led to a 33% decrease in strain to the medial band of the plantar fascia and could therefore be used in the treatment of plantar fasciopathy.

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EOTTS - HyProCure and Plantar Fasciopathy Document Transcript

  • 1. Evaluating Plantar Fascia Strain in Hyperpronating Cadaveric Feet Following an Extra-Osseous TaloTarsal Stabilization Procedure Journal of Foot and Ankle Surgery, Volume 50, Issue 6, Pages 682-686, November 2011 Michael E. Graham, DPM, FACFAS, Nikhil T. Jawrani, MS, Vijay K. Goel, PhDPurpose ResultsThe primary goal of this investigation was to  The mean plantar fascia elongation was 0.83 ±quantify strain on the medial band of the plantar 0.27 mm (strain 3.62% ± 1.17%) prior tofascia in feet exhibiting talotarsal instability, before EOTTS and 0.56 ± 0.2 mm (strain 2.42% ±and after an extra-osseous talotarsal stabilization 0.88%) after insertion of HyProCure®, (N = 18,(EOTTS) procedure. It was hypothesized that the variation reported is ± 1 SD).excessive strain placed on the plantar fascia in  The average plantar fascia strain decreased byhyperpronating cadaveric feet would be reduced 33%, and the difference was statisticallysignificantly after the insertion of the HyProCure® significant with p < .001.EOTTS device.Background EOTTS with HyProCure® decreasedThe plantar fascia functions to stabilize the plantararch(s) of the foot. Instability of the talotarsal strain to the plantar fascia bandmechanism (i.e., hyperpronation) results in thepartial displacement of the talus on the tarsal by an average of 33%.mechanism and results in excessive strain acting onthe medial band of the plantar fascia. Eventually,the critical threshold is reached igniting a painfulstimulus. Clinical Significance & Conclusions  Plantar fascial strain increases with pathologicMethods displacement of the talus on the tarsal  A miniature differential variable reluctance strain mechanism. gauge was used to quantify the plantar fascia  Attention must be directed to reducing strain on strain in 6 fresh-frozen cadaver foot specimens the plantar fascia by stabilizing the talotarsal exhibiting flexible instability of the talotarsal mechanism. joint complex.  When external measures fail to stabilize the  The blinded sub-investigator was instructed to talotarsal mechanism, internal measures must be maximally pronate the talotarsal mechanism by considered. applying maximum force to the 4th & 5th  HyProCure® stabilizes the talus on the tarsal metatarsal heads. A pressure sensor was placed mechanism thereby decreasing the excessive under the 4th & 5th metatarsal heads ensuring that forces acting on the medial column of the foot. the same maximum pressure was applied for  The reduction in forces leads to decreased strain each reading. acting on the medial band of the plantar fasica.  The strain was measured as the foot was moved  The EOTTS procedure offers a possible from its neutral to maximally pronated position, treatment option for plantar fasciopathy in cases before and after intervention using the in which the underlying etiology is abnormal HyProCure® EOTTS device. talotarsal biomechanics. Additional Scientific Papers on HyProCure® are available. Visit the Library section on: www.GraMedica.com