Comparison of Ultrasound-Guided Intra-Articular Injections by Long Axis in Plane Approach on Three Different Sites of the Knee
- Authors
- Park, Ki Deok; Ahn, Jae Ki; Lee, Sang-Chul; Lee, Jihae; Kim, Jongwoo; Park, Yongbum
- Issue Date
- Nov-2013
- Publisher
- LIPPINCOTT WILLIAMS & WILKINS
- Keywords
- Knee; Osteoarthritis; Ultrasonography; Intra-articular Injection
- Citation
- AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION, v.92, no.11, pp.990 - 998
- Journal Title
- AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION
- Volume
- 92
- Number
- 11
- Start Page
- 990
- End Page
- 998
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/14191
- DOI
- 10.1097/PHM.0b013e3182923691
- ISSN
- 0894-9115
- Abstract
- Objective: The objective of this study was to examine the accuracy of ultrasound-guided intra-articular (IA) injections on three different sites of the knee using midmedial, midlateral, and superolateral portals. Design: Ultrasound-guided IA injection and a radiographic evaluation were performed on 120 knees with osteoarthritis. Five milliliters of a mixed material consisting of 1% lidocaine (1 ml), 20 mg of triamcinolone (1 ml), and nonionic contrast (3 ml) was injected into the IA space of the knee through three different portals. After each injection, a radiographic evaluation was performed to determine whether the injected material had reached the IA space or infiltrated into the soft tissue. Results: Of 40 injections administered through the midmedial portal, 38 were confirmed as having been placed in the IA space on the first attempt (95% accuracy rate). Thirty-nine of 40 injections administered through the midlateral portal were IA on the first attempt (98.5% accuracy rate), as were 40 of 40 injections administered through a superolateral portal (100% accuracy rate). No significant differences (P > 0.05) were observed in the accuracy rate obtained with placement through the midmedial, midlateral, and superolateral portals. Conclusions: All three ultrasound-guided IA injections may be used to access the knee joint, with a high rate of accuracy.
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