Periosteal Augmentation of a Tendon Graft Improves Tendon Healing in the Bone Tunnel

Secure fixation of tendon or ligament to bone has been a challenging  problem.  The  periosteum  is  an  osteogenic  organ  that regulates bone growth and remodeling at the outer surface of cortical bone and also is known to play an important role in forming a tendon insertion site to bone. Therefore, we hypothesized that a freshly harvested periosteum can be used as a stimulative scaffold to biologically reinforce the attachment of tendon graft to bone. Using a rabbit hallucis longus tendon and calcaneus process model, we found that a periosteal augmentation of a tendon graft could enhance the structural integrity of the tendon-bone interface, when the periosteum is placed between the tendon and bone interface with the cambium layer facing toward  the  bone.Secure fixation of tendon or ligament to bone has been a challenging  problem.  The  periosteum  is  an  osteogenic  organ  that regulates bone growth and remodeling at the outer surface of cortical bone and also is known to play an important role in forming a tendon insertion site to bone.

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