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Repair of large segmental bone defects with fascial flap-wrapped allogeneic bone
Honglei Dou1, Guowei Wang1, Na Xing1
1Department of Orthopaedics, Yidu Central Hospital Affiliated to Weifang Medical University, Weifang, 261000, Shandong Province, China.
Background:
The objective of this study was to investigate the therapeutic effects of the application of fascial flap-wrapped allogeneic bone for repair of large segmental tibial defects in rabbits and provide a theoretical basis for treatment of large segmental defects in weight-bearing bones.
Methods:
Forty-eight healthy adult New Zealand White (NZW) rabbits were randomized into two groups to establish 15-mm bone defects in the proximal tibia. Bone defects in test and control groups were repaired using allogeneic bone with and without a vascularized fascial flap from the rabbit proximal tibia, respectively. The differences in repair of bone defects between the two groups were assessed with postoperative X-ray examination, new bone quantity assessment, serum bone Gla protein (BGP) level, and biomechanical testing.
Results:
The therapeutic effect in the test group was superior to that in the control group.
Conclusions:
Fascial flap-wrapped allogeneic bone is superior to allogeneic bone alone, and is ideal for the treatment of large segmental bone defects.
