Journal of Korean Foot and Ankle Society (대한족부족관절학회지)

Korean Foot & Ankle Society (대한족부족관절학회)
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Correlation between Chronic Ankle Instability and Center of Pressure Using Pedobrarograph

족압검사를 이용한 만성 발목 불안정성과 압력중심의 연관성

  • Park, Eun Soo (Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Seo, Sang Gyo (Department of Orthopedic Surgery, SNU Seoul Hospital) ;
  • Lee, Ho Seong (Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine)
  • 박은수 (울산대학교 의과대학 서울아산병원 정형외과학교실) ;
  • 서상교 (SNU서울병원 정형외과) ;
  • 이호승 (울산대학교 의과대학 서울아산병원 정형외과학교실)
  • Received : 2019.03.04
  • Accepted : 2020.02.10
  • Published : 2020.03.15
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Abstract

Purpose: Chronic ankle instability is a very common abnormality of the ankle, but there is still controversy regarding its evaluation criteria. The stress view has difficulties in reflecting the patient's symptoms and treatment progress. Therefore, this study examined the relationship between the center of pressure (COP) measured by a pedobarograph and the symptoms of the patient. Materials and Methods: Thirty patients with chronic ankle instability from February to August 2018 were included. Each patient was surveyed with the foot and ankle outcome score (FAOS). The COP was measured with a foot pressure scanner, and the travel distance and ellipse area of the COP were calculated. Each patient was measured on one foot and on two feet with his or her eyes closed and open. The relationship between the COP measurement and FAOS score was analyzed using the Pearson correlation coefficient. Results: The participants were consisted of 21 male and nine female, with a mean age of 30 years, mean weight of 72 kg, and mean foot size of 259 mm. With the eyes open, the correlation coefficient between the FAOS and travel distance of the affected side was -0.394 (p<0.05) and that between the FAOS and the ellipse area of the affected side was -0.425 (p<0.05). On the other hand, no significant correlations were found between the travel distance and ellipse area of the affected side when patients closed their eyes. Conclusion: Measurement of the COP using foot pressure scanner could evaluate objectively patients with chronic ankle instability, with measurements in patients with their eyes open being more significant. Based on the findings of this study, an analysis of the COP with the patients with their eyes open and standing on one foot may help determine the management strategy and assess the progress of the patients.

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References

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