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1.
Acta Ortop Mex ; 35(2): 193-196, 2021.
Article in Spanish | MEDLINE | ID: mdl-34731922

ABSTRACT

INTRODUCTION: Hip fracture are an important cause of morbidity and mortality in old patients. The one-year mortality after a hip fracture increase between 14 to 47%. The main objective was to analyze the risk factors associated with mortality after a hip fracture in a low-income population. MATERIAL AND METHODS: Retrospective study of patients with traumatic hip fracture in a four-year period in an orthopedic training hospital. The data collected was age, gender, Charlson comorbidity index (CCI), delay time in days for surgery, duration in hours for surgical procedure, transfusion. Two groups were analyzed, alive patients and deceased patients. RESULTS: A total of 96 patients with traumatic hip fracture was analyzed. Mortality rate in the first year was pf 16.6%, and at the end of the follow-up was 32.2%. The alive patients showed better values of CCI with a value of 4.2 ± 1.1 versus 5.2 ± 1.0 in the deceased patients. When compared delay time for surgery and duration of surgical procedure did not observe significant difference between patients alive and deceased. CONCLUSION: The delay time of surgery did not affect the mortality after a traumatic hip fracture in old patients with economic low-income.


INTRODUCCIÓN: Las fracturas de cadera representan una causa importante de morbimortalidad en los adultos mayores. La mortalidad a un año posterior a una fractura de cadera incrementa entre 14 y 47%. El objetivo de este estudio fue analizar los factores de riesgo que impactan la tasa de mortalidad posterior a una fractura de cadera en una población de bajos recursos. MATERIAL Y MÉTODOS: Se analizaron de manera retrospectiva pacientes con fractura de cadera traumática en un período de cuatro años en un hospital universitario con entrenamiento ortopédico. Los datos recolectados incluyeron edad, género, índice de comorbilidad de Charlson (CCI), tiempo en días para la cirugía y duración del procedimiento quirúrgico, así como necesidad de transfusión. Se analizaron dos grupos, pacientes vivos y pacientes fallecidos. RESULTADOS: Se evaluó un total de 96 adultos mayores con fractura de cadera. La tasa de mortalidad durante el primer año fue de 16.6%, mientras que al final del seguimiento fue de 32.2%. El grupo de sobrevivientes presentó una mejor evaluación de acuerdo con el CCI con valor de 4.2 ± 1.1 versus 5.2 ± 1.0 en los pacientes fallecidos. No se encontró diferencia estadísticamente significativa en la mortalidad entre ambos grupos al comparar los días de espera de tiempo quirúrgico y la duración de la cirugía. CONCLUSIÓN: El retraso de la cirugía no afecta la tasa de mortalidad después de una fractura de cadera en pacientes de edad avanzada con bajo ingreso económico.


Subject(s)
Hip Fractures , Poverty , Comorbidity , Hip Fractures/epidemiology , Hip Fractures/surgery , Hospitals , Humans , Retrospective Studies , Risk Factors
2.
Acta ortop. mex ; 35(2): 193-196, mar.-abr. 2021. tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1374168

ABSTRACT

Resumen: Introducción: Las fracturas de cadera representan una causa importante de morbimortalidad en los adultos mayores. La mortalidad a un año posterior a una fractura de cadera incrementa entre 14 y 47%. El objetivo de este estudio fue analizar los factores de riesgo que impactan la tasa de mortalidad posterior a una fractura de cadera en una población de bajos recursos. Material y métodos: Se analizaron de manera retrospectiva pacientes con fractura de cadera traumática en un período de cuatro años en un hospital universitario con entrenamiento ortopédico. Los datos recolectados incluyeron edad, género, índice de comorbilidad de Charlson (CCI), tiempo en días para la cirugía y duración del procedimiento quirúrgico, así como necesidad de transfusión. Se analizaron dos grupos, pacientes vivos y pacientes fallecidos. Resultados: Se evaluó un total de 96 adultos mayores con fractura de cadera. La tasa de mortalidad durante el primer año fue de 16.6%, mientras que al final del seguimiento fue de 32.2%. El grupo de sobrevivientes presentó una mejor evaluación de acuerdo con el CCI con valor de 4.2 ± 1.1 versus 5.2 ± 1.0 en los pacientes fallecidos. No se encontró diferencia estadísticamente significativa en la mortalidad entre ambos grupos al comparar los días de espera de tiempo quirúrgico y la duración de la cirugía. Conclusión: El retraso de la cirugía no afecta la tasa de mortalidad después de una fractura de cadera en pacientes de edad avanzada con bajo ingreso económico.


Abstract: Introduction: Hip fracture are an important cause of morbidity and mortality in old patients. The one-year mortality after a hip fracture increase between 14 to 47%. The main objective was to analyze the risk factors associated with mortality after a hip fracture in a low-income population. Material and methods: Retrospective study of patients with traumatic hip fracture in a four-year period in an orthopedic training hospital. The data collected was age, gender, Charlson comorbidity index (CCI), delay time in days for surgery, duration in hours for surgical procedure, transfusion. Two groups were analyzed, alive patients and deceased patients. Results: A total of 96 patients with traumatic hip fracture was analyzed. Mortality rate in the first year was pf 16.6%, and at the end of the follow-up was 32.2%. The alive patients showed better values of CCI with a value of 4.2 ± 1.1 versus 5.2 ± 1.0 in the deceased patients. When compared delay time for surgery and duration of surgical procedure did not observe significant difference between patients alive and deceased. Conclusion: The delay time of surgery did not affect the mortality after a traumatic hip fracture in old patients with economic low-income.

3.
Exp Ther Med ; 17(1): 11-16, 2019 Jan.
Article in English | MEDLINE | ID: mdl-30651759

ABSTRACT

Osteoarthritis (OA) is a degenerative joint disease that affects the soft tissues and bones of involved articulations as a result of deregulation between synthesis and extracellular matrix degradation in articular cartilage. The present study evaluated the effect of intra-articular injection of human amniotic membrane (AM) as a treatment in an OA animal model in the knee. Chemical OA was developed in the knees of New Zealand rabbits. Once OA was established, the right knees only were treated with an intra-articular injection of human AM, with the left knees considered as a negative control group. The evaluation was performed at 3 and 6 weeks post-treatment. At 3 weeks post-injection, the cartilage exhibited fibrillation, erosion, cracks and cell clusters in the negative control group, but not in the treated group (P=0.028). At 6 weeks post-injection, the left knees exhibited hypertrophy, cracks, cell clusters, decreased matrix staining and structure loss. However, the right knees exhibited cell clusters without evidence of disruption in cartilage integrity (P=0.015). These results suggested that the intra-articular injection of human AM delays histological changes of cartilage in OA.

4.
Acta ortop. mex ; 31(5): 217-221, sep.-oct. 2017. tab, graf
Article in Spanish | LILACS | ID: biblio-886570

ABSTRACT

Resumen: Antecedentes: Las fracturas de radio distal constituyen hasta 15% de todas las lesiones óseas en los adultos. La rehabilitación es clave en la recuperación de la movilidad y la capacidad funcional. El sulfato de magnesio intraarticular ha sido utilizado para control postoperatorio del dolor; el objetivo fue determinar la mejoría del dolor y la capacidad funcional de los pacientes con fractura de radio distal usando sulfato de magnesio intraarticular. Material y métodos: Pacientes con fractura de radio distal tratados con clavos percutáneos e inmovilización fueron incluidos al azar en dos grupos. Grupo 1 infiltrado con 1.0 ml de sulfato de magnesio y 1.5 ml de agua estéril; en el grupo 2 esta última fue sustituida por 1 ml de bupivacaína (5 mg/ml). La infiltración se realizó al retiro de la inmovilización. El dolor, funcionalidad y rangos de movimiento fueron evaluados. Resultados: 20 pacientes, ocho masculinos y 12 femeninos con edad promedio de 53 años (± 17 DE) fueron evaluados. Se encontró disminución significativa en el dolor al primer minuto y a los tres minutos después de la infiltración en el grupo 2 (p < 0.05). Ambos grupos presentaron una mejoría significativa en la funcionalidad articular a las dos semanas (p < 0.05), así como una mejoría gradual en la movilidad articular en ese mismo período (p < 0.05). Conclusiones: La infiltración de sulfato de magnesio en combinación con bupivacaína ayuda a disminuir el dolor.


Abstract: Background: The distal radius fracture represent until 15% of all bone injuries in adults. The key in the recovery of mobility and functional outcomes are rehabilitation. The intra-articular application of magnesium sulphate has been used for postoperative pain. The objective was to determinate the improvement in pain and functional outcome of patients with distal radius fracture using intra-articular magnesium sulphate. Material and methods: Patients with distal radius fracture treated with percutaneous pinning and cast immobilization was included and randomized into two groups. The group 1 was applied 1.0 ml of magnesium sulphate and 1.5 ml of injectable water; meanwhile the group 2, the water was replaced with 1 ml of bupivacaine (5 mg/ml). The intra-articular infiltration was applied at the end of immobilization. Pain, functionality and movement of the wrist was evaluated for two weeks. Results: Twenty patients, 8 male and twelve females, with a mean age of 53 years (± 17 SD) was evaluated. A significative reduction of pain during the first minute and at three minutes after intra-articular infiltration in group 2 (p < 0.05). Both groups presented better articular outcomes at the two weeks (p < 0.05), and a better articular movement at same point (p < 0.05). Conclusions: The intra-articular infiltration of magnesium sulphate plus bupivacaine help to reduces the pain.


Subject(s)
Humans , Male , Female , Adult , Pain, Postoperative/prevention & control , Radius Fractures/surgery , Bupivacaine/administration & dosage , Fracture Fixation, Internal , Analgesics/administration & dosage , Magnesium Sulfate/administration & dosage , Pilot Projects , Treatment Outcome , Middle Aged
5.
Orthop Traumatol Surg Res ; 103(2): 199-202, 2017 04.
Article in English | MEDLINE | ID: mdl-28089796

ABSTRACT

INTRODUCTION: The incidence of obesity has increased significantly worldwide. Our hypothesis was that patients with obesity have a more severe distal radius fracture and we realized a study to evaluate this correlation between obesity and severity of distal radius fractures caused by low-energy injuries. MATERIALS AND METHODS: A total of 114 patients with distal radius fracture were examined in a cross-sectional, observational study. Fractures were classified according to the international AO-Müller/Orthopedic Trauma Association (AO/OTA) classification in order to determine the severity. The patient's Body Mass Index (BMI) was calculated and a Pearson correlation was performed. RESULTS: The patients were predominantly female, and left side was more frequently affected. Most of the fractures were AO/OTA type A (71 patients). The majority of the involved patients in our study were overweighed or obese. We do not observe a direct correlation between grade of obesity and distal radius fracture severity. CONCLUSIONS: Based on the results of this study obesity and severity of distal radius fractures do not correlate. LEVEL OF EVIDENCE: Prognostic. Level IV.


Subject(s)
Body Mass Index , Obesity/complications , Radius Fractures/complications , Adolescent , Adult , Aged , Aged, 80 and over , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Trauma Severity Indices , Young Adult
6.
Acta Ortop Mex ; 31(5): 217-221, 2017.
Article in Spanish | MEDLINE | ID: mdl-29518295

ABSTRACT

BACKGROUND: The distal radius fracture represent until 15% of all bone injuries in adults. The key in the recovery of mobility and functional outcomes are rehabilitation. The intra-articular application of magnesium sulphate has been used for postoperative pain. The objective was to determinate the improvement in pain and functional outcome of patients with distal radius fracture using intra-articular magnesium sulphate. MATERIAL AND METHODS: Patients with distal radius fracture treated with percutaneous pinning and cast immobilization was included and randomized into two groups. The group 1 was applied 1.0 ml of magnesium sulphate and 1.5 ml of injectable water; meanwhile the group 2, the water was replaced with 1 ml of bupivacaine (5 mg/ml). The intra-articular infiltration was applied at the end of immobilization. Pain, functionality and movement of the wrist was evaluated for two weeks. RESULTS: Twenty patients, 8 male and twelve females, with a mean age of 53 years (± 17 SD) was evaluated. A significative reduction of pain during the first minute and at three minutes after intra-articular infiltration in group 2 (p 0.05). Both groups presented better articular outcomes at the two weeks (p 0.05), and a better articular movement at same point (p 0.05). CONCLUSIONS: The intra-articular infiltration of magnesium sulphate plus bupivacaine help to reduces the pain.


ANTECEDENTES: Las fracturas de radio distal constituyen hasta 15% de todas las lesiones óseas en los adultos. La rehabilitación es clave en la recuperación de la movilidad y la capacidad funcional. El sulfato de magnesio intraarticular ha sido utilizado para control postoperatorio del dolor; el objetivo fue determinar la mejoría del dolor y la capacidad funcional de los pacientes con fractura de radio distal usando sulfato de magnesio intraarticular. MATERIAL Y MÉTODOS: Pacientes con fractura de radio distal tratados con clavos percutáneos e inmovilización fueron incluidos al azar en dos grupos. Grupo 1 infiltrado con 1.0 ml de sulfato de magnesio y 1.5 ml de agua estéril; en el grupo 2 esta última fue sustituida por 1 ml de bupivacaína (5 mg/ml). La infiltración se realizó al retiro de la inmovilización. El dolor, funcionalidad y rangos de movimiento fueron evaluados. RESULTADOS: 20 pacientes, ocho masculinos y 12 femeninos con edad promedio de 53 años (± 17 DE) fueron evaluados. Se encontró disminución significativa en el dolor al primer minuto y a los tres minutos después de la infiltración en el grupo 2 (p 0.05). Ambos grupos presentaron una mejoría significativa en la funcionalidad articular a las dos semanas (p 0.05), así como una mejoría gradual en la movilidad articular en ese mismo período (p 0.05). CONCLUSIONES: La infiltración de sulfato de magnesio en combinación con bupivacaína ayuda a disminuir el dolor.


Subject(s)
Analgesics , Bupivacaine , Fracture Fixation, Internal , Magnesium Sulfate , Pain, Postoperative , Radius Fractures , Adult , Analgesics/administration & dosage , Bupivacaine/administration & dosage , Female , Humans , Magnesium Sulfate/administration & dosage , Male , Middle Aged , Pain, Postoperative/prevention & control , Pilot Projects , Radius Fractures/surgery , Treatment Outcome
7.
Anat Sci Int ; 91(4): 391-7, 2016 Sep.
Article in English | MEDLINE | ID: mdl-26573638

ABSTRACT

Femoroacetabular impingement (FAI) syndrome is a frequent cause of pain and in recent years considered to be a precursor of premature hip osteoarthritis. The structural abnormalities which characterize FAI syndrome, such as the cam-type deformity, are associated with morphological alterations that may lead to hip osteoarthritis. The aim of this study was to determine the prevalence and topographic and morphometric features of the cam deformity in a series of 326 femur specimens obtained from a Mexican population, as well as changes in prevalence in relation to age and gender. The specimens were subdivided into groups according to gender and age. A standardized photograph of the proximal femur of each specimen was taken, and the photograph was used to determine the alpha angle using a computer program; the location of the lesion was determined by quadrant and the morphometric characteristics were determined by direct observation. The overall prevalence of cam deformities in the femur specimens was 29.8 % (97/326), with a prevalence by gender of 35.2 % (64/182) in men and 22.9 % (33/144) in women. The mean alpha angle was 54.6° ± 8.5° in all of the osteological specimens and 65.6° ± 7.5° in those specimens exhibiting a cam deformity. Cam deformities were found topographically in the anterior-superior quadrant of the femoral head-neck junction in 86.6 % (84/97) of the femurs. Deformities were found in 28.2 % of the right femurs and 31.3 % of the left femurs. The prevalence of cam deformity was higher in the femur specimens of young men and in those of middle-aged and older women. There were no significant differences in this deformity in relation to the alpha angle according to age and gender.


Subject(s)
Aging/pathology , Femoracetabular Impingement/diagnostic imaging , Femoracetabular Impingement/pathology , Femur/abnormalities , Femur/diagnostic imaging , Sex Characteristics , Topography, Medical , Adolescent , Adult , Female , Femoracetabular Impingement/complications , Femoracetabular Impingement/epidemiology , Humans , Male , Mexico/epidemiology , Middle Aged , Osteoarthritis, Hip/etiology , Prevalence , Young Adult
8.
Trauma (Majadahonda) ; 24(3): 156-159, jul.-sept. 2013.
Article in Spanish | IBECS | ID: ibc-115575

ABSTRACT

Las luxaciones anteriores de cadera son raras y se suelen presentar en varones, en la tercera década de la vida, asociados con accidentes de alta energía. Presentamos el caso de una mujer con este tipo de luxación con la cabeza encajada en el agujero obturador, irreductible por maniobras externas (AU)


Anterior hip dislocation are rare events, most commonly presented in males, in the third decade of life, usually associated with high-energy accidents. We present the case of a female patient with anterior dislocation of the hip, anchored in the obturator foramen, irreductible by closed reduction (AU)


Subject(s)
Humans , Male , Adult , Hip Dislocation/complications , Hip Dislocation/diagnosis , Hip Dislocation/surgery , Osteogenesis/physiology , Osteogenesis/radiation effects , Joint Dislocations , Hip Dislocation/physiopathology , Hip Dislocation , Pelvic Bones/pathology , Pelvic Bones , Pelvis/pathology , Pelvis
9.
Acta Ortop Mex ; 27(4): 236-9, 2013.
Article in Spanish | MEDLINE | ID: mdl-24707612

ABSTRACT

OBJECTIVE: To show that patients with intertrochanteric fractures treated with a proximal femoral nail have a better postoperative course than those treated with a DHS plate (dynamic hip screw). METHODS: Patients with a Boyd & Griffin type II intertrochanteric fracture were randomly divided into two groups: a group of patients treated with a PFN and another one treated with a DHS plate. All patients were assessed at 2, 4, 8 and 16 weeks using the Harris scale and the visual analog scale pre- and postoperatively, as well as the operative time, incision size, intraoperative bleeding, onset of partial and/or total weight bearing, healing time, time to attain prior physical activity level, and radiographic result. RESULTS: 32 patients met our criteria. The variables that had a significant reduction were: incision, operative time, postoperative pain according to the visual analog scale, onset of mobility, partial weight bearing and pain at 2 weeks. CONCLUSIONS: The proximal femoral nail has better short-term outcomes than the DHS plate; however, in the medium term both implants have the same outcomes.


Subject(s)
Bone Nails , Bone Plates , Fracture Fixation, Intramedullary/instrumentation , Hip Fractures/surgery , Aged , Aged, 80 and over , Equipment Design , Female , Humans , Longitudinal Studies , Male , Prospective Studies
10.
Trauma (Majadahonda) ; 21(1): 15-19, ene.-mar. 2010. tab
Article in Spanish | IBECS | ID: ibc-84346

ABSTRACT

Objetivos: evaluar la evolución clínica de pacientes tratados con Implante de Condrocitos Autólogos (ICA) en una matriz tridimensional, creada en nuestro Banco de Hueso y Tejidos. Pacientes y metodología: 22 pacientes, 15 fueron evaluados a un año de la cirugía, 6 hombres y 9 mujeres, con una media de edad de 42 años. Siete fueron rodillas izquierdas y ocho derechas y la localización fue en nueve casos en el cóndilo lateral, cuatro en el cóndilo medial, uno en la rótula y otro en ambos cóndilos. Se obtuvieron artroscópicamente condrocitos autólogos que, una vez procesados, se colocaron en la matriz (Condrograft®). Resultados: con el WOMAC antes de la cirugía se obtuvo un promedio de 56,4, y de 16,2 después de la cirugía (<0,002) y con el de Oxford el promedio fue de 18,8. El promedio de la valoración con el KOOS fue de 83,6. Los hombres presentaron una media de 88,1 mientras que las mujeres de 80,5. Los pacientes con lesión en el cóndilo lateral presentaron una media de 86,7 puntos, y los afectados del cóndilo medial 88,2. Conclusión: el ICA en una matriz tridimensional es efectiva para el tratamiento de pacientes con lesiones osteocondrales, al menos, a corto plazo (AU)


Objective: To establish clinical outcome in patients treated with an autologous chondrocyte implant (ACI) in a three-dimension matrix created at our Bone and Tissue Bank. Patients and methods: Twenty-two patients were operated, 15 of whom were evaluated at one year of surgery. The patients included 6 men and 9 women with a mean age of 42 years. Seven were left knees and eight right and in nine cases the location was the lateral acetabulum, in four the medial acetabulum, in one the patella, and the other in both acetabula. Autologous chondrocytes were obtained by arthroscopy that, once processed, were placed in the matrix (Condrograft®). Results: With the WOMAC prior to surgery, an average of 56.4 and 16.2 was obtained after surgery (<0.002). With Oxford, the average was 18.8. The average assessment with KOOS was 83.6. Men had a mean of 88.1, while women had 80.5. Patients with lesion in the lateral acetabulum had a mean of 86.7 points and those with the medial acetabulum affected 88.2. Conclusion: The ACI in a three-dimension matrix is effective for treating patients with osteochondral lesions, at least in the short term (AU)


Subject(s)
Humans , Male , Female , Adult , Knee Injuries/surgery , Knee Injuries , Chondrocytes/transplantation , Arthroscopy/methods , Arthroscopy , Knee/surgery , Knee
11.
Patol. apar. locomot. Fund. Mapfre Med ; 4(1): 17-24, ene.-mar. 2006. ilus
Article in Es | IBECS | ID: ibc-054639

ABSTRACT

Objetivo: analizar la reparación «in vitro» de lesiones cilíndricas de la zona avascular del menisco tratadas con factores de crecimiento y rellenas con diferentes materiales. Material y métodos: las lesiones fueron rellenadas con cilindros de menisco fresco, menisco congelado a –20 ºC, y con esponjas artificiales de colágeno cultivadas con células de cartílago. Todos los grupos fueron tratados con TGF-Beta1, IGF-1 y OP-1® y analizados a las 2, 4, 6 y 8 semanas de evolución. Resultados: el TGF-Beta1 y el IGF-1 indujeron puentes parciales de tejido entre la estructura de relleno y los bordes de la lesión, así como la expresión de colágeno de tipo II y la proliferación celular en toda la superficie del menisco. Así mismo, observamos una migración de células desde el propio menisco lesionado hacia las esponjas de colágeno utilizadas, acelerada por la presencia de TGF-Beta1 e IGF-1. La migración de células a la esponja no se corresponde con procesos de proliferación. No obtuvimos ningún efecto positivo con la proteína OP-1®. Conclusión: la utilización de IGF-1 y TGF-Beta1 y rellenando la lesión con cilindros de menisco o matrices de colágeno pueden ser de utilidad para mejorar la respuesta en modelos experimentales de reparación meniscal


Meniscus is a support tissue formed by fibrocartilage, which function is essential for the correct movement of the knee joint and for the performance of phisical activity. Outer part is vascularized, while inner is avascular and in which lesions are commonly produced. It’s widely accepted that avascular lesions have the most complicated prognosis, as no regenerative processes are produced in that zone. In our study we have constructed an in vitro model of avascular lesions, by culturing complete menisci fragments, and practising them holes in their inner part. Lesions where filled up with meniscal tissue either fresh or freezed at –20 ºC, and with artificial collagen sponges injected with articular cartilage cells. All groups were treated with growth factors TGF-Beta1, IGF-1 and OP-1™, and analyzed at 2, 4, 6 and 8 weeks. Results showed that both TGF-Beta1 and IGF-1 did induce the formation of tissue unions between support structure and the borders of the lesion, as well as collagen type II expression and a stimulation of proliferation in cells in the meniscal surface. On the other hand we oberved no significant effect by OP-1™. We also detected a migration process of cells from the lesioned meniscus throguh collagen sponges used, that was accelerated by the presence of TGF-Beta1 and IGF-1. Results point to an effective usage of these growth factors and collagen scaffolds, in the treatment of lesions of the avascular zone of the meniscus


Subject(s)
Humans , Menisci, Tibial/surgery , Transforming Growth Factor beta/therapeutic use , Insulin-Like Growth Factor I/therapeutic use , Immunohistochemistry
12.
Patol. apar. locomot. Fund. Mapfre Med ; 3(2): 101-110, abr.-jun. 2005. ilus, tab, graf
Article in Es | IBECS | ID: ibc-047414

ABSTRACT

El cartílago articular es el tejido encargado de disminuirla fricción entre las superficies articulares durante el movimiento.Su limitada capacidad de regeneración hace quelas lesiones osteocondrales posean un mal pronóstico ypuedan acabar generando una artrosis en la articulación.La terapia génica para este tipo de patologías resulta muyprometedora, puesto que actualmente, no hay ningún procedimientocapaz de restablecer el tejido dañado. En nuestroestudio hemos puesto a punto un modelo de transferenciagénica a los tejidos de la articulación de la rodillade rata, inyectando intraarticularmente vectores derivadosde virus adeno-asociados, capaces de inducir la expresiónde luciferasa. Los resultados muestran cómo la inducciónde la expresión resulta significativa a partir de los dos mesesde evolución en todos los tejidos articulares (cartílagoarticular, menisco, membrana sinovial y hueso subcondral).La presencia de daño, tanto de tipo mecánico comoautoinmune (artritis inducida por colágeno) no modifica laexpresión de proteína por parte del vector


Articular cartilage is a tissue that decreases friction onarticular surfaces during movement. Its limited regenerativecapacity makes osteocondral lessions to extend andgenerate osteoarthritis in the joint. Gene therapy is apromising alternative to these patologies, since there areno proceedings actually, that restablishes damaged tissue.In our study, we have developed a model of gene transferto articular tissues injecting intraarticularly an adeno-associatedderived vector that induces expression of luciferase.Results obtained show a significant induction of proteinexpression two months after injecting vectors, in all articulartissues (articular cartilage, meniscus, synovium andsubcondral bone). The presence of lessions, mechanic orautoimmune (collagen induced arthritis) do not modify theexpression of protein induced by the vector


Subject(s)
Rats , Animals , Osteoarthritis, Knee/etiology , Cartilage, Articular/physiopathology , Cartilage Diseases/therapy , Recombination, Genetic/genetics , Dependovirus , Luciferases/physiology
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