• Junzhen Wu, Yongming Xu, Shaofeng Pu, Jin Zhou, Yingying Lv, Cheng Li, and Dongping Du.
• Department of Pain Management Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
• Pain Med. 2021 Sep 8; 22 (9): 1940-1945.

ObjectiveThe aim of the present study was to investigate the effectiveness and safety of a novel lateral in-plane approach for ultrasound-guided transforaminal cervical nerve root block (US-guided TF-CNRB) in the treatment of cervical radiculopathic pain.DesignThe design of the present study consisted of an institutional, retrospective case series.SettingThe present study was conducted at a university hospital.SubjectsThirty-two patients with cervical radiculopathy who were resistant to conservative therapies and regular US-guided CNRB were included as participants.MethodsThe included patients were treated with US-guided TF-CNRB. During the treatments, using real-time fluoroscopy, we monitored the spreading patterns of a contrast medium and double confirmed the positions of needle tips. Pain numeric rating scales (NRS) and symptom relief grades were determined via telephone interviews at one, four, and 12 weeks after the procedures.ResultsUS-guided TF-CNRB was performed at the C5 level in six patients, the C6 level in 18 patients, and the C7 level in eight patients. Compared with NRS at baseline, pain scores decreased throughout the observation period. Symptom relief rates of US-guided TF-CNRB at one, four, and 12 weeks were 72%, 69%, and 63%, respectively. Venous blood was aspirated during the procedures in two patients, and the needle tips were corrected. No intravascular injections or neurologic injuries were observed.ConclusionUS-guided TF-CNRB produced circumferential spreading around the involved cervical nerve root and showed significant clinical effectiveness in patients resistant to regular US-guided CNRB.© The Author(s) 2021. Published by Oxford University Press on behalf of the American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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