Fracture displacement rate in four groups at postoperative week 1.

<p>IM-BM group had fewer fracture displacements than the PLLA + CPC, the CPC, and the K-wire groups although statistical analysis did not indicate a significant difference (<i>p</i> = 0.35, 0.143, 0.143, respectively: all Bonferroni multiple comparison test).</p><p>IM-BM: intramedullary-fixation with biodegradable materials; CPC: calcium phosphate cement; K-wire: Kirschner wire.