Allograft bone is the primary source of graft material for large skeletal defects. No study has determined the physical characteristics of such grafts after various periods of time in vivo for incorporation and remodeling. The purpose of this pilot study was to obtain allograft tissue and biomechanically evaluate the tissue to assess allograft bone material properties. The mechanical properties...

BACKGROUND Novel bone substitutes have challenged the notion of autologous bone grafting as the 'gold standard' for the surgical treatment of fracture nonunions. The present study was designed to test the hypothesis that autologous bone grafting is equivalent to other bone grafting modalities in the management of fracture nonunions of the long bones. METHODS A retrospective review of patients...

Aim: The study aimed to evaluate the clinical outcomes of bone augmentation with a mixture cortico-cancellous allograft and xenograft collagen membrane in horizontal knife-edge alveolar crests.
 Material Method: Patients ridge thickness less than 4 mm by preoperative tomography were included study. Twelve patients (10 Female, 2 Male) treated Cortico-Cancellous Allograft Bovine Bone Mineral...

Allograft bone is widely used in orthopaedic surgery, but peri-operative infection of the graft remains a common and disastrous complication. The efficacy of systemic prophylactic antibiotics is unproven, and since the graft is avascular it is likely that levels of antibiotic in the graft are low. Using an electrical potential to accelerate diffusion of antibiotics into allograft bone, high lev...

Freeze-dried bone allograft is an interesting treatment alternative to autogenous bone grafts. This clinical report presents a 3-year follow-up of an atrophic maxilla treated with freeze-dried bone allograft. Ridge augmentation was conducted with freeze-dried tibial allografts. Eight implants were used to support a full-arch prosthesis. Three years later, clinical and radiographic follow-up sho...

Segmental bone allografts are widely used in managing large cortical defects. To improve host-graft union, the effect of allograft on a tibial defect augmented with non-vascularized periosteal flap was studied. Twelve mature Australian white rabbits (Oryctolagus cuniculus) were divided into intervention groups and control group. Bone defects treated segmental wrapped flap. The group transplanta...

Fractures and nonunions are the main complications associated with bone allografts. Although the osteogenic role of recombinant human bone morphogenetic proteins (rhBMPs) has been demonstrated in experimental models and human tibial nonunions, the results are unknown for allograft nonunions. In this study, the efficacy of rhBMPs was evaluated in nonunions of femoral allografts. The results of s...

Impaction allograft is an established method of securing initial stability of an implant in arthroplasty. Subsequent bone integration can be prolonged, and the volume of allograft may not be maintained. Intermittent administration of parathyroid hormone has an anabolic effect on bone and may therefore improve integration of an implant. Using a canine implant model we tested the hypothesis that ...

+*Jayabalan P; *Waters NP, *Cook CR; *Kuroki K; *Carson W; *Cook JL +*Comparative Orthopaedic Laboratory, University of Missouri, Columbia, MO [email protected] Introduction: Repair of chronic tears of the rotator cuff fail in 30-90% of cases. Current repair techniques do not re-establish normal bone-tendon (B-T) or tendon-muscle (T-M) junctions. Optimizing the strength and function at these ...

The efficacy of meniscus allograft transplantation (MAT) for the meniscus-deficient knee has been widely recognized as being excellent in terms of pain relief and functional improvement. Lateral MAT is usually performed with the bone bridge technique that uses a bone bridge connecting the anterior and posterior horns of an allograft. The slot position for the meniscal graft insertion is of grea...