Ultrasound (US) is widely used to assess musculoskeletal disorders because it is noninvasive and inexpensive and does not expose patients to radiation. Studies have reported its usefulness in the diagnosis and treatment of de Quervain disease. In de Quervain disease, the use of US for injection is an accurate method for delivering steroids into both subcompartments, and one study reported that US-guided injections showed better results than the blinded method. However, according to previous studies, the main lesion of de Quervain disease in patients with a septum is a stenosing tenosynovitis of the EPB. In anatomic studies, an intracompartmental septum was usually present at the radial styloid in the first compartment, creating a separate, narrow compartment for the EPB tendon. Furthermore, failure to inject steroids into the EPB sheath could result in persistent symptoms, just as an unreleased, separate EPB subcompartment could lead to persistent symptoms after surgery. Therefore, recent studies have focused on US-guided intrasynovial injections targeting the EPB tendon in the presence of a septum. Although previous studies have compared injections into both subcompartments with injections into a single compartment, to our knowledge, there is no report to date comparing injections into the EPB subcompartment with injections into both subcompartments.

超聲（US）被廣泛用于評(píng)估肌肉骨骼疾病，因?yàn)樗鼰o創(chuàng)且價(jià)格便宜，而且沒有輻射。有研究報(bào)告超聲在診斷和治療de Quervain病方面很有意義。在de Quervain病中，使用超聲引導(dǎo)下注射是將類固醇注入兩個(gè)亞室的準(zhǔn)確方法。一項(xiàng)研究報(bào)告說明，超聲引導(dǎo)下的注射比盲法的效果更好。根據(jù)以前的研究，在有室間隔的病人中，de Quervain病的主要病變是EPB的狹窄性腱鞘炎。在解剖學(xué)研究中，室間隔內(nèi)通常存在于第一室的橈骨指骨處，為EPB肌腱創(chuàng)造了一個(gè)單獨(dú)的、狹窄的亞室。此外，未能向EPB鞘內(nèi)注射類固醇可能導(dǎo)致癥狀無改善，正如未松解的、獨(dú)立的EPB亞室可能導(dǎo)致術(shù)后癥狀無改善一樣。因此，最近的研究集中在超聲引導(dǎo)下的鞘內(nèi)注射，目標(biāo)是有隔膜的EPB肌腱。雖然以前的研究比較了向兩個(gè)亞室的注射和向單一亞室的注射，但據(jù)我們所知，到目前為止還沒有報(bào)告比較單獨(dú)向EPB亞室的注射和同時(shí)向兩個(gè)亞室的注射。