PubMed · 2018909
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P Arnstein, S Fleming. Bag packers' hand.. https://doi.org/10.1016/0007-1226(91)90059-s
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Disruption of the central slip is the primary defect leading to boutonnière deformity. In the closed injury early diagnosis of this lesion is rarely achieved due to the limitations of current methods and difficulties encountered in assessing a painful finger. We describe a simple, non-invasive method of diagnosis which can be carried out on all patients and with minimal discomfort. This test is also beneficial in monitoring the progress of conservative management of central slip disruption.