Objective To compare the finding between arthroscopy and MR- arthrogram(MRA)in the patients with traumatic posterior shoulder instability.
目的对创伤性肩关节后方不稳定关节镜下表现与MR关节造影（MRA）的影像进行对比分析。
Objective To compare the finding between arthroscopy and MR- arthrogram(MRA)in the patients with traumatic posterior shoulder instability.
目的对创伤性肩关节后方不稳定关节镜下表现与MR关节造影（MRA）的影像进行对比分析。
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