RESUMEN
A 32-year-old male presented with painful swelling of the sinus tarsi that occurred during daily activities. Diagnostic imaging suggested the presence of a large synovial osteochondromatosis that blocked subtalar motion with deformity of the adjacent bone. The large bony mass was excised, and normal subtalar motion was achieved.
Asunto(s)
Calcáneo/cirugía , Condromatosis Sinovial/diagnóstico , Condromatosis Sinovial/cirugía , Astrágalo/cirugía , Adulto , Calcáneo/patología , Condromatosis Sinovial/fisiopatología , Humanos , Imagenología Tridimensional , Imagen por Resonancia Magnética , Masculino , Rango del Movimiento Articular/fisiología , Articulación Talocalcánea/patología , Articulación Talocalcánea/fisiopatología , Articulación Talocalcánea/cirugía , Astrágalo/patología , Tomografía Computarizada por Rayos XRESUMEN
OBJECTIVE: The aim of this study was to evaluate the results of autologous bone marrow cell stimulation and allogenic chondrocyte implantation using 3-dimensional gel-type fibrin matrix in an animal model. DESIGN: Eighteen rabbits were divided into 2 treatment groups. One group was treated with a microfracture and covering of it with gel-type fibrin (AutoBMS; n = 9), and the other group was treated with allogenic chondrocytes mixed gel-type fibrin at the cartilage defect (AlloCI; n = 9). The control group was untreated cartilage defect at the other side knee of each object. Twelve weeks after treatment, the cartilage was evaluated using the International Cartilage Repair Society (ICRS) scoring system, immunohistochemical staining, and modified O'Driscoll grading system. RESULTS: The ICRS scores were similar in the AutoBMS (9.44 ± 2.44) and the AlloCI (9.33 ± 1.67) groups ( P < 0.05). Immunohistochemical staining confirmed higher expression of cartilaginous collagen for both groups. The average difference (AutoBMS, 31.89 ± 6.54; AlloCI, 32.89 ± 5.25) in the modified O'Driscoll scores appeared to be nonsignificant ( P > 0.05); however, both treatment groups showed significantly higher scores with respect to their control group (18.45 ± 1.65; 18.97 ± 1.58) ( P < 0.05). CONCLUSION: This experimental study suggests autologous bone marrow cells stimulation and implantation of allogenic chondrocytes are both useful methodologies for regenerating hyaline-like cartilage in full-thickness cartilage defects in animal model.