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[Biological and functional factors in 2-stage flexor tendon reconstruction].

After a review of the morphological and biological relationship of the intact human flexor tendon-sheath unit, the authors discuss injuries of the flexor tendon. They summarize research to date, including their own results. In their opinion, the success of two-stage tendon grafting used in the treatment of such injuries, apart from the known clinical factors, also depends on biological and functional factors.