Persistence of eye movement following disinsertion of extraocular muscle
Persistence of eye movement following disinsertion of extraocular muscle
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DOI：
10.1016/j.jaapos.2007.09.001
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发表时间：
2008-02-01
期刊：
影响因子：
1.6
通讯作者：
Maher, Harry
中科院分区：
文献类型：
--
作者：
Hakim, Ossama M.;El-Hag, Yasser Gaber;Maher, Harry
背景人们普遍认为，眼外肌的插入是力从肌肉传递到眼睛的唯一部位。我们的目的是测试这一假设，通过检查眼动力后，disinsertation的extraocular muscles.METHODS 42成人（年龄，20-45岁，中位年龄，26岁）进行了斜视手术。所有手术均在2%利多卡因凝胶表面麻醉或0.2%罗哌卡因球周感觉运动阻滞麻醉下完成。66块直肌和6块斜肌被缝合锁定并脱离。每一块肌肉的脱位后，病人被要求移动眼睛的肌肉的行动领域;眼球运动被记录为正常，减少，或absent. Results 50直肌（76%），眼球运动是正常的，而14直肌（21%），眼球运动减少后，脱位。只有两个直肌（3%），眼球运动后，脱位缺席。对于所有六个斜肌（100%），眼球运动是正常的dispositions.CONCLUSIONS意想不到的，强烈的持久性的眼球运动的方向上的动作的脱嵌肌肉表明，解剖插入不仅发生在肌肉融入巩膜，但也涉及周围的结缔组织。眼眶结缔组织可以被认为是一个额外的和重要的运动系统。
BACKGROUND It is widely assumed that the insertion of the extraocular muscle is the sole site of force translation from muscle to eye. Our aim was to test this assumption by examining ocular motility after disinsertion of the extraocular muscle.METHODS Forty-two adults (age, 20-45 years; median age, 26 years) underwent strabismus surgery. All surgeries were completed under topical anesthesia with lidocaine 2% jelly or peribulbar sensorimotor differential blocking anesthesia with ropivacaine 0.2%. Sixty-six rectus muscles and six oblique muscles were suture-locked and disinserted. After disinsertion of each muscle, the patient was asked to move the eye in the field of action of the muscle; eye movement was recorded as normal, reduced, or absent.RESULTS For 50 rectus muscles (76%), eye movement was normal after disinsertion, while for 14 rectus muscles (21%), eye movement was reduced after disinsertion. For only two rectus muscles (3%), eye movement was absent after disinsertion. For all six oblique muscles (100%), eye movement was normal after disinsertion.CONCLUSIONS The unexpected, strong persistence of eye movement in the direction of action of the disinserted muscle indicates that anatomic insertion not only occurs at the point at which the muscle blends into the sclera but also involves the surrounding connective tissue. Orbital connective tissue can be considered an additional and important locomotor system.