Kim Jin Young, Seok Hyun, Kim Sang-Hyun, Choi Yoon-Hee, Ahn Jun Young, Lee Seung Yeol
Department of Physical Medicine and Rehabilitation, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
Department of Physical Medicine and Rehabilitation, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
Ann Rehabil Med. 2020 Dec;44(6):450-458. doi: 10.5535/arm.20035. Epub 2020 Dec 31.
To determine the most optimal needle insertion point of extensor indicis (EI) using ultrasound.
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.
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.
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.
利用超声确定示指伸肌（EI）的最佳进针点。
招募了40名健康志愿者的80条前臂。我们用超声确定EI的中点（MP），并将MP设为最佳进针点。通过与体表标志的距离来确定MP的位置。测量MP到尺骨内侧缘的距离（MP-X）以及到尺骨头下缘的距离（MP-Y）。计算MP-X与前臂周长的比值（X比值）以及MP-Y与前臂长度的比值（Y比值）。在横断面视图中，测量MP的深度（Dmp），将其定义为浅部深度（Ds）和深部深度（Dd）的中间值，并将其作为合适的进针深度。
MP-X的平均值为1.37±0.14厘米，MP-Y的平均值为5.50±0.46厘米。X比值的平均值为8.10±0.53，Y比值的平均值为22.15±0.47。Dmp的平均值为7.63±0.96毫米。
我们提出了EI新的最佳进针点。其深度约为7.6毫米，位于距尺骨头下缘近端约前臂长度22%处，且位于距尺骨内侧缘桡侧约前臂周长8.1%处。
