Inter-Rater Reliability and Criterion Validity of a 3D Scanner to Produce Customized Short Leg Brace and Insole Orthoses

• 발행기관: KEMA학회
• 저자명: Heami Bae Simon Ha Aeran Yoo Seoyoung Kim Sinae Kwon Yongwook Kim
• 간행물 정보: 『Journal of Musculoskeletal Science and Technology』제8권 제2호, 57~64쪽, 전체 8쪽
• 주제분류: 의약학 > 재활의학
• 파일형태: PDF
• 발행일자: 2024.12.31

국문 초록

Background: The production of personalized short leg brace (SLB) and insole orthoses using three- dimensional (3D) printing offers efficiency and addresses limitations of traditional methods involving plaster molds. To fabricate 3D printing orthoses, a 3D scanner capable of acquiring personalized models of individual lower limb segments is necessary. Thus, investigating the reliability and validity of clinical application of a 3D scanner is a foundational step in customized orthoses production. Purpose: To verify the reliability and validity of lower leg and foot measurement data related to the SLB fitting process obtained through 3D lower limb scanning equipment. Study design: A cross-sectional and repeated-measures study design Methods: This study involved 40 adult participants. Inter-rater reliability of a novel 3D scanner was assessed through measurements performed by two different raters within a 3-day interval. Criterion validity of the 3D scanner was verified through comparison with physical measurements. Intraclass correlation coefficient (ICC) were used to investigate inter-rater reliability and criterion validity for measurement variables of the 3D scanner equipment. Results: The inter-rater reliability for the 3D scanner showed excellent correlation with ICC 0.90 or higher for most measurement variables. For the validity of the 3D scanner, ICC values of rater A ranged from 0.84 to 0.96 (p<0.01) and those of rater B ranged from 0.91 to 0.99 (p<0.01). The average ICC value was 0.86 for navicular height, medial malleolus height, and lateral malleolus height variables. However, most ICC values showed very good and reliable correlation. Conclusions: The inter-measurement reliability of each measurement variable through test-retest of the 3D scanner equipment showed a high level of good correlation. There was a high level of correlation for most measurement variables between caliper measurements directly performed by the rater and 3D scanner measurements. Therefore, production and clinical application of 3D printing-based personalized SLB and insole orthoses could correct, manage, and treat various musculoskeletal diseases of the lower extremities through clinical use of 3D scanner equipment.

목차

INTRODUCTION

METHODS

RESULTS

DISCUSSION

CONCLUSIONS

REFERENCES

키워드

Ankle foot orthosis Caliper Foot scanner Reliability Validity