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  • Title: The use of demineralized bone matrix for anterior cruciate ligament reconstruction: a radiographic, histologic, and immunohistochemical study in rabbits.
    Author: Hsu SL, Wang CJ.
    Journal: J Surg Res; 2014 Mar; 187(1):219-24. PubMed ID: 24139522.
    Abstract:
    Tendon-bone healing is crucial in success of anterior cruciate ligament (ACL) reconstruction surgery. Demineralized bone matrix (DBM) is a physiological component that has the inherent potential of bone regeneration. We hypothesized that the alternative bone substitute can affect the structural properties of tendon graft in tibial tunnel healing. Five 12-week-old New Zealand white rabbits in study group underwent unilateral ACL reconstructions plus the application of 0.5 cc DBM in the tibial tunnel. The assessment included radiological assessment and histologic and immunohistochemical analyses. Radiological examination revealed that DBM group had the least displacement of tendon in tibial tunnel (0.4 ± 0.12; P = 0.03). Histologic examination showed significantly better integration between tendon and bone in DBM group (77.62 ± 2.08; P = 0.001). On immunohistochemical analysis, the DBM group showed significantly higher expressions of bone morphogenetic protein-2 and vascular endothelial growth factor than control group (51.98 ± 3.02, 84.06 ± 1.86; P = 0.001, P < 0.001). DBM enhances the tendon-bone healing in ACL reconstruction. DBM has the potential use in ACL surgery.
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