Comparison of ultrasound (US)-guided intra-articular injections by in-plain and out-of-plain on medial portal of the knee.
To compare the accuracy rates between ultrasound (US)-guided in-plain (IP), out-of-plain (OOP) and blind knee intra-articular (IA) injection via the mid-medial portal. US-guided IA injection in the IP, OOP, and blind methods was performed on 126 knees with radiographically confirmed knee osteoarthritis (Kellgren-Lawrence grade 2 or 3) without effusion. About 6 ml of a mixed material containing 1% lidocaine (1 mL) and triamcinolone 20 mg (1 mL) and nonionic contrast (4 mL) was injected into the IA space of the knee through the mid-medial portals. After an US-guided and blind IA injection into the knee joint, a radiographic image was taken to determine whether the injected material had reached the IA space or infiltrated into the soft tissue. US-guided IA injections in the IP (97%; P < 0.05) and OOP method (95%; P < 0.05) showed significantly higher accuracy rate than injections in the blind injection (78%). Both US-guided IA injection methods may be used to access the knee joint with high degree of accuracy.
Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, South Korea.
Seong Ho
SH
Jang
Sang Chul
SC
Lee
Ji Hae
JH
Lee
Sang Hyun
SH
Nam
Kyoung Rai
KR
Cho
Yongbum
Y
Park
D000368:Aged; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007270:Injections, Intra-Articular; D007719:Knee Joint / Q000000981:diagnostic imaging*; D008012:Lidocaine / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging / Q000188:drug therapy*; D011859:Radiography; D016037:Single-Blind Method; D016896:Treatment Outcome; D014221:Triamcinolone / Q000008:administration & dosage / Q000627:therapeutic use*; D014463:Ultrasonography
D014221:Triamcinolone; D008012:Lidocaine