The term “pectoralis minor syndrome” refers to this constellation of symptoms that can occur when the pectoralis minor (Pm) is shortened and contracted. Release of the tendon of the Pm from the coracoid has been reported to provide substantial clinical improvement to patients presenting with pectoralis minor syndrome. The purpose of this study was (1) to describe the technique for endoscopic release of pectoralis minor tendon at the subdeltoid space, (2) to classify the pectoralis minor syndrome according to its severity and (3) and to report the short-term outcomes of this procedure in a consecutive series of patients diagnosed with pectoralis minor syndrome. Endoscopic release of the pectoralis minor tendon was performed in a series of 10 patients presenting with pectoralis minor syndrome. There were six females and four males with a median age at the time of surgery of 42 (range from 20 to 58) years. Four shoulders were categorized as grade I (scapular dyskinesis), and six as grade II (intermittent brachial plexopathy). Shoulders were evaluated for pain, motion, satisfaction, subjective shoulder value (SSV), quick-DASH, ASES score, and complications. The mean follow-up time was 19 (range, 6 to 49) months. Arthroscopic release of the tendon of the Pm led to substantial resolution of pectoralis minor syndrome symptoms in all but one shoulder, which was considered a failure. Preoperatively, the median VAS for pain was 8.5 (range, 7–10) and the mean SSV was 20% (range, 10% - 50%). At most recent follow-up the mean VAS for pain was 1 (range, 0–6) and the mean SSV 80% (range, 50% - 90%). Before surgery, mean ASES and quick-DASH scores were 19.1 (range, 10–41.6) and 83.1 (range, 71 and 95.5) points respectively. At most recent follow-up, mean ASES and quick-DASH scores were 80.1 (range, 40–100) and 19.3 (range, 2.3–68) points respectively. No surgical complications occurred in any of the shoulder included in this study. Endoscopic release of the tendon of the pectoralis minor from the coracoid improves pain, function and patient reported outcomes in the majority of patients presenting with the diagnosis of isolated pectoralis minor syndrome.

中文翻译：

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胸小肌综合征的胸小肌腱从喙突关节镜下松解术

术语“胸小肌综合征”是指当胸小肌 (Pm) 缩短和收缩时可能出现的一系列症状。据报道，从喙突释放 Pm 肌腱可为患有胸小肌综合征的患者提供显着的临床改善。本研究的目的是（1）描述在三角肌下腔内镜下松解胸小肌腱的技术，（2）根据严重程度对胸小肌综合征进行分类，（3）并报告短期结果在一系列被诊断为胸小肌综合征的患者中进行了这一手术。在一系列 10 例胸小肌综合征患者中进行了胸小肌肌腱的内镜松解术。有 6 名女性和 4 名男性，手术时的中位年龄为 42 岁（范围从 20 到 58 岁）。四个肩部被归类为 I 级（肩胛骨运动障碍），六个被归类为 II 级（间歇性臂丛神经病）。评估肩部的疼痛、运动、满意度、主观肩部值 (SSV)、快速 DASH、ASES 评分和并发症。平均随访时间为 19（范围，6 至 49）个月。关节镜下 Pm 肌腱的松解导致胸小肌综合征症状在除一个肩部外的所有部位得到显着缓解，这被认为是失败的。术前，疼痛的中位 VAS 为 8.5（范围，7-10），平均 SSV 为 20%（范围，10% - 50%）。在最近的随访中，疼痛的平均 VAS 为 1（范围，0-6），平均 SSV 为 80%（范围，50% - 90%）。手术前，平均 ASES 和 quick-DASH 得分分别为 19.1（范围，10-41.6）和 83.1（范围，71 和 95.5）分。在最近的随访中，平均 ASES 和 quick-DASH 得分分别为 80.1（范围，40-100）和 19.3（范围，2.3-68）分。本研究中包括的任何肩部均未发生手术并发症。胸小肌腱从喙突的内镜下松解可改善大多数被诊断为孤立性胸小肌综合征的患者的疼痛、功能和患者报告的结果。