Results In OPFM, both endochondral bone formation and intramembrane bone formation played their parts in osteoporotic fracture healing, the former played a major role.

• 但骨质疏松性骨折愈合过程中，软骨内成骨延缓，骨性骨痂改建(骨吸收＞骨形成)加速，骨痂内胶原纤维疏松、排列紊乱，与主应力方向不一致，从而导致骨折愈合质量降低。