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Published on: September 18, 2020
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.
Purpose:
Retrospective analysis of the effect of portable 3D gait analysis as an innovative evaluation method in the treatment with MTT on chronic ankle instability patient.
Methods:
From January 1, 2019, to December 31, 2019, 56 cases of chronic ankle instability (CAI) were extracted from the medical record system of Shenzhen Longhua District Central Hospital. All the patients of 56 cases accepted the medical training therapy (MTT). As outcome parameters, the alterations of the Cumberland ankle instability tool (CAIT), foot and ankle ability measure (FAAM), were used before the treatment and after treatment; meanwhile, the portable apparatus 3D gait analysis was used to measure the gait parameters.
Conclusion:
The results showed only ankle angle parameters Y-axis, maximum dorsiflexion during support period (°) had a significant difference, and the p value is 0.039. Meanwhile, the CAIT, FAAM, and most 3D gait analysis data had no significant difference. This particular statistical difference shows that CAI can be measured scientifically and objectively, although most measurement parameters have no change. These results make further reveal that the CAI patients are suffering with dynamic abnormality of ankle motion angle; this also provides us with a measurable and systematic evaluation reference plan for CAI treatment in the future.

