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Patient's positive and behind appearance before surgery on presentation.
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Medical Research Council grade strength of deltoid 1/5, biceps 1/5, triceps 4/5. (Figure 1) Other neurologic function was normal.
Preoperative imaging on presentation.
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What is noteworthy was that the left neural foramen seemed to be narrower than the right one. (Figure 2) Electromyography (EMG) changes of denervation were most prominent in the left deltoid and biceps, while the thoracic paraspinal muscles and lower limb muscles were not involved obviously.
Change of upper limb muscle strength in different periods from preoperative to postoperative.
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Postoperative imaging on presentation.
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