Wojtys E M, Nelson G
Department of Surgery, University of Michigan, Ann Arbor 48106-0363.
Clin Orthop Relat Res. 1991 Jul(268):112-9.
Twenty-two patients with Grade III acromioclavicular (AC) joint dislocations were treated nonoperatively and evaluated by questionnaire, physical exam, and isokinetic strength and endurance testing. The mean follow-up time was 2.6 years (range, six months to 7.7 years). Patients returned to work an average of 2.1 weeks after injury. All of the patients were right-handed; 14 injured their dominant right AC joint whereas eight injured their nondominant left side. Isokinetic muscle testing was used to evaluate the strength and endurance of both shoulders in all 22 patients. Strength was measured as peak torque for shoulder flexion, extension, internal and external rotation, abduction, and adduction at 400 degrees per second. Internal and external rotation testing was also evaluated at 60 degrees per second. Endurance was measured at 400 degrees per second for flexion, extension, and internal and external rotation. The strength and endurance levels of the injured shoulders were comparable to the noninjured side. Although discomfort levels were low, long range follow-up reports reveal discomfort appearing with increased intensity of activity.
22例Ⅲ度肩锁关节脱位患者接受了非手术治疗，并通过问卷调查、体格检查以及等速肌力和耐力测试进行评估。平均随访时间为2.6年（范围为6个月至7.7年）。患者受伤后平均2.1周恢复工作。所有患者均为右利手；14例损伤了优势右侧肩锁关节，而8例损伤了非优势左侧。采用等速肌肉测试评估所有22例患者双肩的力量和耐力。力量测量为肩屈曲、伸展、内旋和外旋、外展及内收在每秒400度时的峰值扭矩。内旋和外旋测试也在每秒60度时进行评估。耐力在每秒400度时测量屈曲、伸展、内旋和外旋。受伤肩部的力量和耐力水平与未受伤侧相当。尽管不适程度较低，但长期随访报告显示，随着活动强度增加，不适会加重。
