Park Jin-Young, Lee Woo-Seung, Lee Sung Tae
Department of Orthopedic Surgery, Konkuk University Seoul Hospital, College of Medicine, Konkuk University, Seoul, South Korea.
J Shoulder Elbow Surg. 2008 Jan-Feb;17(1 Suppl):8S-11S. doi: 10.1016/j.jse.2007.06.010.
The purpose of this study was to evaluate the strength of the shoulder before and after the impingement test. This study included 153 cases of impingement syndrome, 20 cases of partial-thickness rotator cuff tear, and 60 cases of full-thickness rotator cuff tear. We divided each of the groups into 2 subgroups according to the mean percentage decrease in pain to evaluate the correlation between pain and muscle weakness. We also divided the impingement syndrome group into 2 groups based on stiffness. After the test, the subgroup with stiffness had a greater reduction in pain compared with the subgroup without stiffness. The results show no statistically significant difference in the strength of the shoulder, except for increased external rotation strength in patients with full-thickness rotator cuff tears and increased supraspinatus strength in patients with impingement syndrome with stiffness. In cases in which the continuity of the rotator cuff is maintained, pain is not an important factor in the cause of shoulder weakness. Preoperative muscle testing can be done despite pain, but if a full-thickness rotator cuff tear is confirmed, re-examination of external rotator strength is necessary. In patients with impingement syndrome, particularly with shoulder stiffness, supraspinatus strength can be decreased.
本研究的目的是评估撞击试验前后肩部的力量。本研究纳入了153例撞击综合征患者、20例部分厚度肩袖撕裂患者和60例全厚度肩袖撕裂患者。我们根据疼痛平均减轻百分比将每组分为2个亚组，以评估疼痛与肌肉无力之间的相关性。我们还根据僵硬程度将撞击综合征组分为2组。试验后，有僵硬症状的亚组与无僵硬症状的亚组相比，疼痛减轻程度更大。结果显示，肩部力量无统计学显著差异，但全厚度肩袖撕裂患者的外旋力量增加，有僵硬症状的撞击综合征患者的冈上肌力量增加。在肩袖连续性得以维持的情况下，疼痛并非导致肩部无力的重要因素。尽管存在疼痛，术前仍可进行肌肉测试，但如果确诊为全厚度肩袖撕裂，则有必要重新检查外旋力量。在撞击综合征患者中，尤其是伴有肩部僵硬的患者，冈上肌力量可能会降低。
