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14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

17.06. - 21.06.2019, Berlin

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Relationship between coordination ability of the thumb and index and O’Conner finger dexterity test

Meeting Abstract

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  • presenting/speaker Seiji Nishimura - Faculty of Health Sciences, Kanazawa University, Kanazawa, Japan
  • Katsuyuki Shibata - Faculty of Health Sciences, Kanazawa University, Kanazawa, Japan
  • Kaoru Tada - Department of Orthopedic Surgery, Kanazawa University, Kanazawa, Japan
  • Sho Horie - Department of Rehabilitation, Kanazawa University Hospital, Kanazawa, Japan

International Federation of Societies for Surgery of the Hand. International Federation of Societies for Hand Therapy. 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT). Berlin, 17.-21.06.2019. Düsseldorf: German Medical Science GMS Publishing House; 2020. DocIFSHT19-1076

doi: 10.3205/19ifssh1562, urn:nbn:de:0183-19ifssh15624

Published: February 6, 2020

© 2020 Nishimura et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Clinical issue/s: We developed a muscle strength measurement system based on 3-dimensional analysis to identify muscle strength. Furthermore, we improved our original system to enable measurement of coordination ability of the thumb and finger. The present study was performed to review relationship between coordination ability of the thumb and index and O'Conner finger dexterity test.

Clinical reasoning: 70 healthy adults with an average age of 21.3 were studied. In our measurement system, a 3-component force transducer was fixed to a custom-built sensor. This unit, which was connected to three strain gauge amplifiers, transmitted the data to an A/D conversion analyzer for recording on a personal computer. For measurement, the shoulder joint angle was fixed to 60° flexion and the wrist joint angle was fixed to 40° dorsal flexion. We measured flexion force of the thumb and index. And we measured coordination ability in the thumb and index, too. We did the coordination ability of the thumb and index with the ability that keep movement with the 25%, 50% and 75% of maximum muscular strength. Finger dexterity test used O'Conner finger dexterity test.

Innovative, analytical or new approach: The thumb coordination ability of flexion in 25%, 50%, 75% were 7.09±3.04, 6.88±2.46, 7.97±3.66, respectively. The index coordination ability of flexion in 25%, 50%, 75% were 7.80±3.19, 9.08±3.31, 9.32±2.92, respectively. In relationship between coordination ability of the thumb flexion and O'Conner finger dexterity test, the coefficient of correlation of 25%, 50%, 75% were 0.25, 0.44, and 0.43. In relationship between coordination ability of the index flexion and O'Conner finger dexterity test, the coefficient of correlation of 25%, 50%, 75% were 0.48, 0.42, and 0.40. This means that related to dexterity of the hand with thumb and index flection.

Contribution to advancing HT practice: The coordination ability of the thumb and index related to finger dexterity. And this technique will be useful in evaluating coordination ability in the field of applied hand surgery.