Demineralized bone matrix and platelet-rich plasma do not improve healing of osteochondral defects of the talus: an experimental goat study.
Osteoarthritis Cartilage
; 21(11): 1746-54, 2013 Nov.
Article
en En
| MEDLINE
| ID: mdl-23896314
ABSTRACT
OBJECTIVE:
The purpose of this study was to evaluate the effectiveness of demineralized bone matrix (DBM) with and without platelet-rich plasma (PRP) in the treatment of osteochondral defects (OCDs) of the talus. We hypothesized that treatment with DBM would result in more bone formation than no treatment in control OCDs, and that PRP would further enhance the regenerative capacity of DBM.METHOD:
A standardized 6-mm OCD was created in each talus of 16 adult goats. According to a randomization scheme, one OCD of each goat was treated with allogeneic DBM hydrated with normal saline (n = 8) or hydrated with autologous PRP (n = 8). The contralateral OCD (n = 16) served as control. After 24 weeks, the animals were euthanized and the tali excised. Various outcome parameters were analyzed with use of macroscopic evaluation, micro-computed tomography (µCT), histology, histomorphometry, and fluorescence microscopy.RESULTS:
None of the analyses revealed statistically significant differences between the groups for any of the parameters analyzed in any volume of interest. For example, the mean bone volume fraction (BV/TV) of the defect, as measured by µCT, was 0.56 (95% confidence interval [CI], 0.44-0.68) for DBM hydrated with normal saline and 0.52 (95% CI, 0.40-0.65) for DBM hydrated with PRP, compared to 0.53 (95% CI, 0.45-0.61) and 0.54 (95% CI, 0.44-0.64) for the internal controls, respectively (P > 0.05).CONCLUSION:
In contrast to our hypotheses, no beneficial treatment effect of DBM with or without PRP was found for OCDs of the caprine talus.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Matriz Ósea
/
Astrágalo
/
Traumatismos del Tobillo
/
Sustitutos de Huesos
/
Plasma Rico en Plaquetas
Tipo de estudio:
Evaluation_studies
/
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Osteoarthritis Cartilage
Asunto de la revista:
ORTOPEDIA
/
REUMATOLOGIA
Año:
2013
Tipo del documento:
Article