Portable 3D Gait Analysis Assessment in MTT Treat Chronic Ankle Instability: A Retrospective Study

Yujuan Song1, Sibai Xu1, Yanqiu Dai1

  • 1TCM Department, Shenzhen Longhua District Central Hospital, China.

Insights

Portable 3D gait analysis offers a new way to evaluate chronic ankle instability (CAI) treatment. While most gait metrics showed no change, a specific ankle angle difference suggests CAI involves dynamic abnormalities, guiding future evaluations.

Area of Science:

  • Biomechanics
  • Orthopedics
  • Sports Medicine

Background:

  • Chronic ankle instability (CAI) presents ongoing challenges in patient recovery and functional assessment.
  • Medical training therapy (MTT) is a common treatment modality for CAI.
  • Objective and scientific evaluation methods are crucial for optimizing CAI treatment outcomes.

Purpose of the Study:

  • To evaluate the effectiveness of portable 3D gait analysis as an innovative assessment tool for patients with chronic ankle instability undergoing medical training therapy (MTT).
  • To investigate the changes in gait parameters and clinical outcome measures following MTT in CAI patients.

Main Methods:

  • A retrospective analysis of 56 chronic ankle instability patients treated with MTT between January 1, 2019, and December 31, 2019.
  • Utilized the Cumberland Ankle Instability Tool (CAIT) and Foot and Ankle Ability Measure (FAAM) for clinical outcome assessment.
  • Employed portable 3D gait analysis to measure kinematic parameters before and after treatment.

Main Results:

  • A statistically significant difference was observed in the ankle angle Y-axis, specifically maximum dorsiflexion during the support period (p=0.039).
  • The CAIT, FAAM scores, and the majority of 3D gait analysis parameters did not show significant changes post-treatment.
  • Despite limited changes in most parameters, the significant finding highlights objective measurement capabilities for CAI.

Conclusions:

  • Portable 3D gait analysis can scientifically and objectively measure aspects of chronic ankle instability.
  • CAI patients exhibit dynamic abnormalities in ankle motion angles, even if other clinical measures do not significantly change.
  • This study provides a foundation for a measurable and systematic evaluation framework for CAI treatment in clinical practice.
Abstract

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