Case report of ulnar nerve palsy in a sport rifle shooter

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  • 尺骨神経麻痺を発症したライフル射撃選手の1例
  • シャッコツ シンケイ マヒ オ ハッショウ シタ ライフル シャゲキ センシュ ノ イチレイ
  • シャッコツ シンケイ マヒ オ ハッショウ シタ ライフル シャゲキ センシュ ノ 1レイ

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21 years old female expert sport rifle shooter complained about her left hand numbness without any causes that come to her mind for about two months. Although her left hand presented slight claw hand deformity and both motor and sensory ulnar nerve conduction between her left upper arm and forearm decreased, "Tinel like sign" at the cubital tunnel area could not be detected. To exam the cause of her ulnar nerve palsy, inspection of her rifle shooting performance was performed. From the result of inspection, we speculated that ulnar nerve impingement between dorsal side of her left upper arm and her left knee at the kneeling shooting position would be the cause. She changed her kneeling shooting form not to impinge her ulnar nerve and resulted in improvement of her symptom in four weeks. It would be difficult for general clinician to diagnose rare sports injury occurred in minor athletic event, inspection of the sports performance would be useful to detect the cause of the injury.

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