Effects of autologous platelet rich plasma gel and calcium phosphate biomaterials on bone healing in an ulnar ostectomy model in dogs
| Autor: | J.-G. Grand, E. Dalibert, Olivier Gauthier, B. Fellah, M. Rabillard, G. W. Niebauer |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Blood Platelets
Calcium Phosphates Bone Regeneration medicine.medical_treatment Radiodensity Dentistry chemistry.chemical_element Ulna Bone healing Matrix (biology) Calcium Dogs Implants Experimental Absorbable Implants medicine Animals Ostectomy Bone regeneration Fracture Healing General Veterinary Ossification business.industry Biomechanical Phenomena chemistry Platelet-rich plasma Bone Substitutes Animal Science and Zoology Female medicine.symptom business |
| Zdroj: | Veterinary and comparative orthopaedics and traumatology : V.C.O.T. 22(6) |
| ISSN: | 0932-0814 |
| Popis: | SummaryThe aim of the study was to evaluate the bone healing properties of an osteopromotive platelet rich plasma (PRP) gel in combination with osteoconductive calcium phosphate (CaP) ceramic granules in a long-bone critical size defect in dogs. A standardised 2 cm long ulnar ostectomy was performed bilaterally in four dogs to compare new-bone formation by CaP matrix with and without association with PRP. Radiographic and histological evaluations were performed blindly. Radiographic evaluation was performed at three, six, nine, 12 and 16 weeks postoperatively. Quantitative measurements of new-bone formation were compared using statistical analysis. At explantation 16 weeks after surgery, no significant ossification was present, neither with CaP granules alone nor in association with PRP gel, and there was no difference of radiodensity between the groups. Qualitative histological evaluation demonstrated for both types of implants the presence of non-mineralised fibrous connective tissue around the CaP granules. New-bone formation was only present to a very small extent within the macropores of the CaP granules at the distal boneimplant interface. In our model which exhibited very limited osteoconduction, neither the CaP granules alone nor in association with PRP were sufficient to stimulate bone healing. In this canine model employing a critical size ulnar gap, the combination of CaP granules and PRP did not effectively promote bone regeneration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|