[Development of three dimensional bone-connecting plate and its clinical application].

Biomechanical assessment showed that the three dimensional plate developed by the authors which had stereo-rigidity in the fixation of long bone fractures was superior to compressive plate and flanged plate in terms of anti-compressive and anti-torsional strength. The anti-bending strength was superior to the flanged plate but inferior to compressive plate. The comprehensive nature of the three dimensional plate remained superior. Clinical application in 112 cases with 85 of them being followed-up for 8-44 months showed that bone union occurred in 45-98 days. The average was 82 days. In 65 cases of them the plates had been removed. No delayed-union or non-union occurred. Preliminary experience showed that the three dimensional plate was a new design for the treatment of long bone fractures. It can be applied to various types of long bone fractures especially the severe comminuted fractures owing to its requirement of proper fixation.