Steadman Hawkins Clinic of the Carolinas, Spartanburg, South Carolina, USA.
Arthroscopy. 2011 Jan;27(1):9-16. doi: 10.1016/j.arthro.2010.06.022. Epub 2010 Oct 29.
The purpose of this study was to compare the forearm supination and elbow flexion strength of the upper extremity in patients who have had an arthroscopic long head of the biceps tendon (LHBT) release with patients who have had an LHBT tenodesis.
Cybex isokinetic strength testing (Cybex Division of Lumex, Ronkonkoma, NY) was performed on 17 patients who underwent arthroscopic LHBT tenotomy, 19 patients who underwent arthroscopic LHBT tenodesis, and 31 age-, gender-, and body mass index-matched control subjects. Subjects were considered fully recovered from shoulder surgery, were released for unrestricted activities, and were at least 6 months after surgery before testing. Subjects were tested for forearm supination and elbow flexion strength of both arms by use of a Cybex II NORM isokinetic dynamometer at 60°/s and 120°/s. Testing was performed on injured and uninjured arms as well as dominant and nondominant arms in control subjects. Both forearm supination and elbow flexion strength values were recorded.
Comparison between the involved and uninvolved upper extremities within each group by use of a paired t test showed a 7% increase in elbow flexion strength when the dominant and nondominant arms were compared at 60°/s. Neither the tenotomy nor tenodesis groups exhibited elbow flexion strength differences at 120°/s (all P ≥ .147). Comparison between groups by use of 2 × 3 analysis of variance (speed × group) showed no statistical difference in either forearm supination or elbow flexion strength when we compared the tenotomy, tenodesis, and control groups.
In asymptomatic patients who have had biceps tenotomy or tenodesis, no statistically significant forearm supination or elbow flexion strength differences existed in the involved extremity between the 2 study groups.
Level III, case-control study.
本研究旨在比较接受关节镜下肱二头肌长头肌腱（LHBT）切断术和 LHBT 肌腱固定术的患者的前臂旋后和肘部屈曲力量。
对 17 例接受关节镜下 LHBT 切断术、19 例接受关节镜下 LHBT 肌腱固定术的患者和 31 例年龄、性别和身体质量指数匹配的对照组患者进行 Cybex 等速力量测试（Cybex 分部，Lumex，Ronkonkoma，NY）。受试者肩部手术完全康复，可进行无限制活动，且术后至少 6 个月方可进行测试。受试者使用 Cybex II NORM 等速测力计以 60°/s 和 120°/s 的速度测试双侧前臂旋后和肘部屈曲力量。在对照组中，测试对侧和优势侧手臂的受伤和未受伤手臂。记录双侧前臂旋后和肘部屈曲力量值。
使用配对 t 检验对每组内患侧和健侧上肢进行比较，发现 60°/s 时优势侧和非优势侧比较时肘部屈曲力量增加 7%。在 120°/s 时，切断术组和固定术组均未显示出肘部屈曲力量差异（所有 P ≥.147）。使用 2×3 方差分析（速度×组）对组间进行比较时，当我们比较切断术、固定术和对照组时，无论是前臂旋后还是肘部屈曲力量，组间均无统计学差异。
在无症状接受过肱二头肌切断术或肌腱固定术的患者中，2 个研究组之间患侧上肢的前臂旋后和肘部屈曲力量没有统计学差异。
III 级，病例对照研究。
