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Japanese

Improvement in Dropped Head Syndrome (DHS) Following Corticosteroid Injections on the Tender Points at the Upper Thoracic Spine : A Case Report Nobuyuki Tsuzuki 1 , Kyoko Ishizuka 1 , Masakazu Iijima 2 1Department of Orthopedic Surgery, Toda Medical Center, Toda City 2Department of Neurology, Toda Medical Center, Toda City Keyword: 首下がり症候群 , dropped head syndrome , 頚半棘筋 , semispinalis cervicis muscle , 後枝内側枝 , medial branch of the posterior primary ramus , 傍脊椎圧痛点 , paravertebral tender point , ステロイド注射 , corticosteroid injection pp.407-414
Published Date 2016/5/18
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 An 83-year-old woman presented with dropped head syndrome (DHS), that had been progressing during the previous 6 months. She had no history of neuromuscular diseases and, on examination, no neuromuscular abnormalities were observed except for isolated weakness of the neck extensors, mainly of the semispinalis cervicis. On the paravertebral sites of the T1-T5 spine on both sides, a total of eight points with marked tenderness were noted, four on each side. These eight points coincided with the anatomically narrow spaces through which the posterior rami emerged from their deep exits in the spine (i.e., the intervertebral foramina) to the superficial paravertebral sites, where they bifurcated into the lateral and medial branches, the latter innervating the semispinalis cervicis. Repeated local corticosteroid injections once a week on these eight tender points, with 3.3 mg Decadron (dexamethasone sodium phosphate) mixed with 20 mL of 0.5% xylocaine divided among the eight tender points, improved DHS in 3 months. This case suggests that the anatomically narrow pathway of the medial branches of the posterior rami at the upper thoracic spine could induce inflammations of the passing nerves, resulting in neck extensor weakness.


Copyright © 2016, The Japanese Association of Rehabilitation Medicine. All rights reserved.

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電子版ISSN 印刷版ISSN 1881-3526 日本リハビリテーション医学会

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