Ultrasonographic Analysis of Optimal Needle Placement for Extensor Indicisopen access
- Authors
- Kim, Jin Young; Seok, Hyun; Kim, Sang-Hyun; Choi, Yoon-Hee; Ahn, Jun Young; Lee, Seung Yeol
- Issue Date
- Dec-2020
- Publisher
- 대한재활의학회
- Keywords
- Extensor indicis; Injections; Ultrasonography; Electromyography
- Citation
- Annals of Rehabilitation Medicine, v.44, no.6, pp 450 - 458
- Pages
- 9
- Journal Title
- Annals of Rehabilitation Medicine
- Volume
- 44
- Number
- 6
- Start Page
- 450
- End Page
- 458
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/2273
- DOI
- 10.5535/arm.20035
- ISSN
- 2234-0645
2234-0653
- Abstract
- Objective To determine the most optimal needle insertion point of extensor indicis (EI) using ultrasound. Methods A total 80 forearms of 40 healthy volunteers were recruited. We identified midpoint (MP) of EI using ultrasound and set MP as optimal needle insertion point. The location of MP was suggested using distances from landmarks. Distance from MP to medial border of ulna (MP-X) and to lower margin of ulnar head (MP-Y) were measured. Ratios of MP-X to Forearm circumference (X ratio) and MP-Y to forearm length ( Y ratio) were calculated. In cross-sectional view, depth of MP (Dmp), defined as middle value of superficial depth (Ds) and deep depth (Dd) was measured and suggested as proper depth of needle insertion. Results Mean MP-X was 1.37 +/- 0.14 cm and mean MP-Y was 5.50 +/- 0.46 cm. Mean X ratio was 8.10 +/- 0.53 and mean Y ratio was 22.15 +/- 0.47. Mean Dmp was 7.63 +/- 0.96 mm. Conclusion We suggested that novel optimal needle insertion point of the EI. It is about 7.6 mm in depth at about 22% of the forearm length proximal from the lower margin of the ulnar head and about 8.1% of the forearm circumference radial from medial border of ulna.
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Collections - College of Medicine > Department of Physical Medicine and Rehabilitation > 1. Journal Articles
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