Quality of Life and Satisfaction in Patients Above and Under 65 Years Old Submitted to Total Knee Arthroplasty / Qualidade de vida e satisfação de pacientes com idade superior ou inferior a 65 anos submetidos a artroplastia total de joelho

Abstract Objective To compare the level of quality of life and satisfaction after two years of total knee arthroplasties between individuals above and below 65 years of age and to identify predictor factors of poor clinical outcome and low level of satisfaction in patients undergoing arthroplasty. Methods This is a retrospective cohort with data from patients diagnosed with knee osteoarthritis submitted to primary total knee arthroplasty from 2014 to 2018 (n= 190). Clinical outcomes were assessed using the following scores: visual analog scale (VAS) of pain, EQ-5D-3L and EUROQOL-VAS (quality of life scales), patient satisfaction level, and functional scale of the Knee Injury and Osteoarthritis Outcome Score (KOOS), collected through a questionnaire applied preoperatively, as well as 1, 3, 12 and 24 months after surgery. Results Patients < 65 years old presented significantly lower values (clinical worsening) in KOOS-pain and KOOS-symptoms. There are no differences in the principal clinical scores that assess pain, function, and quality of life after the procedure, as well as in the rate of satisfaction with the procedure, among patients < 65 years old when compared with patients ≥ 65 years old. It was also observed that patients who were not satisfied with the procedure in the 24-month evaluation presented clinical results in some analyzed scores (KOOS-pain and EQ-VAS) similar to patients who declared themselves satisfied. Conclusion Scores that assess pain, function, quality of life, as well as satisfaction rate are similar between patients < 65 years old and those ≥ 65 years old.

Resumo Objetivo Comparar a qualidade de vida e satisfação 2 anos após a artroplastia total de joelho em indivíduos com idade ≥ e < 65 anos e identificar fatores preditivos de pior evolução clínica e baixo nível de satisfação nestes pacientes. Métodos Trata-se de uma coorte retrospectiva de dados de pacientes com diagnóstico de osteoartrite de joelho submetidos a artroplastia total primária de joelho entre 2014 e 2018 (n= 190). Os resultados clínicos foram avaliados de acordo com os seguintes escores: escala visual analógica (EVA) de dor, EQ-5D-3L e EUROQOL-VAS (escalas de qualidade de vida), nível de satisfação do paciente e escala funcional do Knee Injury and Osteoarthritis Outcome Score (KOOS, na sigla em inglês). Estes dados foram coletados por meio de questionário aplicado no período pré-operatório e 1, 3, 12 e 24 meses após a cirurgia. Resultados Os pacientes < 65 anos apresentaram valores significativamente menores (piora clínica) nas escalas KOOS-dor e KOOS-sintomas. Não houve diferenças nas principais pontuações clínicas de dor, função e qualidade de vida após o procedimento, nem no índice de satisfação com a cirurgia, entre pacientes < 65 anos em comparação com aqueles ≥ 65 anos. Observamos também que os pacientes não satisfeitos com o procedimento à avaliação de 24 meses apresentaram resultados clínicos em alguns escores analisados (KOOS-dor e EQ-VAS) semelhantes aos dos pacientes que se declararam satisfeitos. Conclusão Os escores que avaliam dor, função, qualidade de vida e índice de satisfação são semelhantes entre os pacientes < 65 anos e aqueles ≥ 65 anos.

Artroscopia de rodilla en pacientes mayores de 64 años con gonartrosis primaria / Knee Arthroscopy In Patients Over 64 Years Of Age With Primary Gonarthrosis

Introducción: La gonartrosis es una entidad frecuente, que afecta especialmente a personas mayores de 60 años de edad. Para su tratamiento se combinan modalidades conservadoras y quirúrgicas y dentro de esta última, las realizadas por la vía artroscópica. Objetivo: Evaluar los resultados de las técnicas quirúrgicas por vía artroscópica en pacientes con gonartrosis primaria mayores de 64 años de edad. Métodos: Se realizó un estudio pre experimental de diseño (preprueba-posprueba) en 40 pacientes mayores de 64 años tratados por vía artroscópica con el diagnóstico de gonartrosis primaria, en el Hospital Universitario Manuel Ascunce Domenech de la ciudad de Camagüey de octubre 2012 a mayo de 2019. La investigación tiene un nivel de evidencia IV y recomendación D. Resultados: El promedio de edad de los pacientes estudiados fue de 69,6 años con predominio del sexo femenino sobre el masculino, y una razón de 3:1. La afección tricompartimental predominó en la mayoría de los enfermos, así como el grado IV según la clasificación de Outerbridge. Predominaron las lesiones de cartílago y meniscos asociadas. Los tratamientos por vía artroscópica más empleados fueron el desbridamiento y la meniscectomía parcial. Se detectó significación estadística entre un antes y un después. Conclusiones: Los resultados de la investigación muestran que los procedimientos realizados a través de la vía artroscópica en pacientes mayores de 64 años de edad con gonartrosis primaria son efectivos en más de la mitad de los enfermos(AU)

Introduction: Gonarthrosis is a common entity that especially affects people over 60 years of age. For its treatment, conservative and surgical modalities are combined, and within the latter, those carried out by the arthroscopic route. Objective: To evaluate the results of arthroscopic surgical techniques in patients with primary gonarthrosis older than 64 years of age. Methods: A pre-experimental design study (pre-test-post-test) was carried out in 40 patients older than 64 years treated arthroscopically due to the diagnosis of primary gonarthrosis, at Manuel Ascunce Domenech University Hospital in Camagüey from October 2012 to May. of 2019. The research has a level of evidence IV and recommendation D. Results: The average age of the patients studied was 69.6 years, with a predominance of females, and a ratio of 3:1. Tricompartmental involvement prevailed in most of the patients, as well as grade IV according to the Outerbridge classification. Associated cartilage and meniscus injuries predominated. The most used arthroscopic treatments were debridement and partial meniscectomy. Statistical significance was detected between before and after. Conclusions: The results of the investigation show that the procedures carried out through the arthroscopic route in patients older than 64 years of age with primary gonarthrosis are effective in more than half of the patients(AU)

Efectividad de la distracción tibiofemoral en la funcionalidad adicionada al tratamiento convencional en pacientes mayores de 50 años con osteoartritis de rodilla: un estudio piloto / Effectiveness of tibiofemoral distraction in the functionality added to conventional treatment in patients over 50 years with knee osteoarthritis: a pilot study

RESUMEN: Osteoartritis (OA) es una de las enfermedades reumáticas más frecuentes y la más común enfermedad articular, afecta principalmente al cartílago articular y el hueso subcondral de una articulación sinovial resultando en la incapacidad articular. La OA es reconocida como una causa substancial de discapacidad, con significativos costos sociales y financieros debidos a las frecuentes intervenciones médicas y quirúrgicas además del ausentismo laboral. El objetivo del estudio fue determinar si la distracción tibiofemoral adicionada al tratamiento convencional en pacientes con osteoartritis de rodilla grado 3, presenta mejoras en el dolor, rango de movimiento y funcionalidad de la extremidad inferior, en comparación al tratamiento convencional propuesto por el MINSAL por sí solo. Esta investigación corresponde a un estudio piloto, con diseño experimental del tipo ensayo clínico aleatorizado (ECA), controlado, ciego simple y con una muestra equilibrada. La muestra corresponde a pacientes reclutados del Hospital San Borja Arriarán (Santiago, Chile) con diagnóstico médico de OA de rodilla grado 3. Se realizaron dos mediciones, una al inicio de las diez sesiones y otra al final del tratamiento, donde se midió el dolor con la escala visual análoga (EVA), el rango de movimiento articular pasivo con goniometría y la capacidad funcional con el test de marcha de 6 minutos y el cuestionario de WOMAC. Al comparar ambos grupos muestran diferencias estadísticamente significativas en la funcionalidad, el dolor y distancia de marcha durante 6 minutos. La distracción tibiofemoral adicionada al tratamiento convencional presentó mejoras clínicas significativas cuando comparada con la aplicación del tratamiento convencional de OA de rodilla.

SUMMARY: Osteoarthritis (OA) is one of the most frequent rheumatic diseases and the most common joint disease, primarily affecting joint cartilage and the subchondral bone of a synovial joint resulting in the y articular dysfunction. OA is recognized as a cause of disability, with significant social and financial costs due to medical, surgical interventions in addition to frequent absenteeism at work. The objective was to determine if tibiofemoral distraction, in conjunction with conventional therapy in patients with knee osteoarthritis grade 3, improved performance of the lower extremity in comparison to the conventional treatment alone, as proposed by the Ministry of Health (MINSAL). This research is a pilot, prospective randomized clinical trial (RCT), controlled, single-blind and with a balanced sample. The sample was recruited from patients of the Hospital San Borja Arriarán (Santiago, Chile) with medical diagnosis of knee OA grade 3. Two measurements were performed, one at the beginning of the 10 sessions and at the end of treatment, which was measured with the functionality questionnaire of OA of the Western Ontario and McMaster Universities (WOMAC), the pain visual analog scale (VAS), the passive joint range of motion with goniometry, and distance to the Test 6-minute walk. When comparing the two groups showed statistically significant differences in functionality, pain, distance walked and joint range, except in knee grade extension. The tibiofemoral distraction added to conventional treatment functional improvement in patients with knee OA grade 3.

Reemplazo parcial de rodilla mediante el sistema robótico NAVIO: resultados clínicos postquirúrgicos evaluados mediante Knee injury Osteoartritis Outcome Score / Robotic-assisted unicompartmental knee replacement with NAVIO surgical system: outcome evaluation using the Knee Injury Osteoarthritis Outcome Score

INTRODUCCIÓN: La osteoartritis de rodilla es una de las patologías musculo esqueléticas más prevalentes en el mundo, y el tratamiento quirúrgico es hasta hoy, la única terapia definitiva. El sistema NAVIO™ es uno de los dispositivos robóticos más recientemente a disposición para realizar el reemplazo parcial de rodilla. Ofrece gran precisión en el proceso de alineamiento, remodelado óseo y balance de los tejidos blandos, sin exponer al paciente a la radiación ni a los costos de la tomografía computarizada que suele realizarse con los sistemas robóticos actuales antes del procedimiento artroplástico. OBJETIVO: Evaluar los resultados medidos por los pacientes antes y después del procedimiento artroplástico mediante NAVIO™ y la prótesis STRIDE™. MATERIAL Y MÉTODO: Aplicación del cuestionario Knee injury Osteoarthritis Outcome Score (KOOS) en el preoperatorio y a los 12 meses del procedimiento quirúrgico de los primeros 47 pacientes operados usando NAVIO™ en Cornerstone Regional Hospital, Edinburg, Texas. RESULTADOS: Se observó una mejoría de las muestras normalizadas en todas las categorías con un p < 0.05. COMENTARIO: Estudios recientes han sugerido que en Chile la presentación de la osteoartritis se asocia a un grado de severidad menor que en el resto de los países latinoamericanos. Lo cual torna relevante la aplicación de terapias quirúrgicas más conservadoras, que ofrezcan al paciente un alivio sintomático y le permitan reestablecerse a sus actividades cotidianas causando el mínimo impacto posible. Esas ventajas fueron observadas en los pacientes sometidos a ese procedimiento quirúrgico. CONCLUSIONES: La artroplastia unicompartimental de rodilla mediante el sistema quirúrgico NAVIO™ y prótesis STRIDE™ demostró mejorar substancialmente la vida diaria y calidad de vida de los pacientes, disminuyendo el dolor y mejorando su función durante las actividades deportivas y recreacionales.

INTRODUCTION: Knee osteoarthritis is one of the most prevalent musculoskeletal pathologies in the world and the surgical treatment is until today the only definitive therapy. NAVIO™ system is one of the most recently available robotic devices for partial knee arthroplasty. It offers great precision in the process of alignment, bone remodeling and soft tissue balancing without exposing the patient to the radiation or the costs of the CT scan usually performed before the arthroplasty with the current robotic systems. OBJECTIVE: To evaluate the outcomes measured by the patients before and after the arthroplasty using NAVIO™ and the STRIDE™ prosthesis. MATERIALS AND METHODS: Application of the Knee Injury Osteoarthritis Outcome Score (KOOS) questionnaire in the preoperative and 12 months after the surgical procedure of the first 47 patients operated using NAVIO™ at Cornerstone Regional Hospital, Edinburg, Texas. RESULTS: There was an improvement of the normalized samples in all the categories with p < 0.05. COMMENTARY: Recent studies have suggested that in Chile the presentation of osteoarthritis is associated with a lower degree of severity compared with the rest of Latin American countries. This makes relevant the application of more conservative surgical therapies, which could offer the patient symptomatic relief and allow them to reestablish their daily activities causing the minimum impact possible. These advantages were observed in patients undergoing this surgical procedure. CONCLUSIONS: Unicompartmental knee replacement using NAVIO ™ surgical system and STRIDE™ prosthesis demonstrated a substantial improvement in patient's quality of life, reducing pain and improving their function during sports and recreational activities.

Association between ongoing pain intensity, health-related quality of life, disability and quality of sleep in elderly people with total knee arthroplasty / Associação entre a intensidade da dor, a qualidade de vida relacionada com a saúde, a incapacidade e a qualidade do sono em idosos com artroplastia total de joelho

The scope of this paper was to study the relationship between pain intensity, health-related quality of life, disability, sleep quality and demographic data in elderly people with total knee arthroplasty (TKA). 24 subjects who had been subjected to TKA the previous month (4 females; 66 ± 9years) and 21 comparable controls (8 male; 70 ± 9years) participated in the study. Intensity of pain, and highest and lowest pain intensity experienced in the preceding week were collected. The Western Ontario and McMaster Universities index function, quality of life (Medical Outcomes Study Short Form 36), and Pittsburgh Sleep Quality Index were assessed. Age, gender, weight, height, body mass index were also collected. Individuals with TKA presented worse physical function (P < 0.01), social role (P = 0.01), physical performance (P < 0.01), pain (P = 0.04), disability (P = 0.04) and sleep quality (P = 0.03) than the controls. Higher intensity of pain was associated with lower physical function, social role, mental health, vitality and general health, and with higher disability and sleep quality. Disability and sleep quality were negatively associated with several quality of life domains. The associations between the intensity of pain, disability, quality of life and sleep reveal the multidimensional experience of TKA.

Objetivo: Identificar as relações entre intensidade da dor, qualidade de vida relacionada à saúde, incapacidade, qualidade do sono e dados demográficos em idosos com artroplastia total de joelho (ATJ). Métodos: Participaram vinte e quatro pacientes que receberam ATJ no mês anterior (4 mulheres; 66 ± 9 anos) e 21 controles comparáveis (8 homens; 70 ± 9 anos). Foram coletadas a intensidade da dor no momento da avaliação, a maior e a menor intensidade de dor sentida na semana anterior. A função (Western Ontario and McMaster Universities index), a qualidade de vida (Medical Outcomes Study Short Form 36), e a qualidade do sono (Pittsburgh Sleep Quality Index) foram avaliadas. Idade, sexo, peso, altura, índice de massa corporal também foram coletados. Resultados: Indivíduos com ATJ mostraram pior função física (P < 0,01), papel social (P = 0,01), desempenho físico (P < 0,01), dor (P = 0,04), incapacidade (P = 0,04) e qualidade do sono (P = 0,03) do que os controles. Maior intensidade da dor foi associada com menor função física, papel social, saúde mental, vitalidade e saúde geral, e com maior incapacidade e qualidade do sono. Incapacidade e qualidade do sono estiveram associa das negativamente com vários domínios de qualidade de vida. As associações entre a intensidade da dor, incapacidade, qualidade de vida e do sono mostram a experiência multidimensional da ATJ.

Resultados de revisão de artroplastia total do joelho com haste não cimentada "Press-fit" / Results of revision total knee arthroplasty using press-fit cementless stem

Objetivo: Mostrar nossa experiência com haste não-cimentadas press-fit e fixação metafisária com cimento em série selecionada de pacientes que realizaram revisão de artroplastia total do joelho. Métodos: Trinta e quatro pacientes (35 joelhos) foram submetidos a revisão de artroplastia total do joelho usando técnica "press-fit". Seguimento mínimo foi de um ano (média de 2,2 anos) e máximo de três anos. Resultados: Dos 34 pacientes, 20 foram mulheres e 14 foram homens. Houve um óbito por causa não relacionada a artroplastia e perda de seguimento de um paciente. Não houve nenhum caso em que fosse necessária nova revisão. Os pacientes que foram submetidos à revisão apresentaram melhora clínica e funcional demonstrado pelos resultados do KSS, resultados do questionário de qualidade de vida SF-36, através do ganho de amplitude de movimento e da melhora no alinhamento do membro. Conclusão: Houve melhora clínica e funcional no pós-operatório em relação ao pré-operatório na revisão de artroplastia total do Joelho com haste não cimentada "press-fit". Nível de Evidência IV, Série de casos.

Objective: To show our experience with press-fit cementless stem and metaphyseal fixation with cement in a selected series of patients who underwent revision total knee arthroplasty. Methods: Thirty-four patients (35 knees) underwent revision total knee arthroplasty using the press-fit technique. Minimum follow-up was one year (mean 2.2 years) with a maximum length of three years. Results: Of 34 patients, 20 were women and 14 were men. There was one death due to causes not related to arthroplasty and one patient dropout. There were no cases in which further review was necessary. Patients who underwent revision had clinical and functional improvement demonstrated by the results of the KSS, results of the SF-36 quality of life questionnaire, through gains in range of motion and improved limb alignment. Conclusion: There was postoperative clinical and functional improvement in comparison to the preoperative status in revision total knee arthroplasty with press-fit cementless stem. Level of Evidence IV, Case series.

Rol de la cirugía artroscópica en pacientes mayores de 50 años con artrosis de rodilla / Treatment of knee osteoarthritis in patients older than 50 years old: role of arthroscopic surgery

Objective: To describe the functional outcomes in patients with knee osteoarthritis older than 50 years, treated with arthroscopic surgery. Methods: Retrospective study in 100 patients with knee osteoarthritis who underwent knee arthroscopy. Inclusion criteria: 50 years or more, knee osteoarthritis and Ahlbãck classification I-III. Exclusion criteria: Ahlbãck IV, deformities, joint inflammatory disease. There were 50 males and 50 females with an average age of 60.1 years (50-83). Lysholm and IKDC (International Knee Documentation Committee) postoperative scores were performed in all the cases. Associated lesions and procedures were also registered. Statistical analysis was performed by using a T Test for independent samples. Results: Average follow up 35.9 +/- 15.2 months. Postoperative average scores were: Lysholm 86.9 +/- 15.5 and IKDC 79.4 +/- 24.7 points. Associated lesions: chondral injuries: 48 percent condrales and meniscal tears:36 percent. Patients with meniscal lesions had 70 percent of good and excellent Lysholm results versus 84.6 percent of patients with chondral lesions (p = 0.035). Conclusion: Patients with knee arthroscopic surgery for mild to moderate knee osteoarthritis and associated lesions show good and excellent functional results in a mediumto long term follow up.

Objetivo: Describir resultados clínicos en pacientes mayores de 50 años con artrosis de rodilla tratados con artroscopía, evaluando lesiones asociadas y tratamiento. Métodos: Estudio retrospectivo de una serie consecutiva de 100 pacientes sometidos a una artroscopía de rodilla por diagnóstico de artrosis. Los criterios de inclusión fueron: pacientes > 50 años, diagnóstico clínico e imagenológico de artrosis y clasificación Ahlbãck I-III. Los criterios de exclusión fueron: Ahlbãck IV, mal alineamiento de extremidades inferiores y enfermedades inflamatorias articulares. Fueron 50 hombres y 50 mujeres, con edad promedio 60,1 años (50-83). Evaluamos con puntajes Lysholm e International Knee Documentation Committee (IKDC) postoperatorios. Documentamos lesiones asociadas encontradas y procedimientos realizados. Se utilizó T Test para muestras independientes. Resultados: Seguimiento promedio de 35,9 +/- 15,2 meses. Puntajes postoperatorios promedio: Lysholm 86,9 +/- 15,5 e IKDC 79,4 +/- 24,7 puntos. Las lesiones asociadas más frecuentes fueron: condrales (48 por ciento) y meniscales (36 por ciento) inestables. El 70 por ciento de los casos con lesiones meniscales refirieron buenos y excelentes resultados según Lysholm versus 84,6 por ciento de casos con lesiones condrales inestables (p = 0,035). Conclusión: Pacientes con artrosis asociada a lesiones condrales o meniscales refirieron buenos y excelentes resultados al seguimiento clínico a mediano-largo plazo luego de ser sometidos a un aseo artroscópico y estabilización de lesiones tanto meniscales como condrales.

Measurement of tibial slope angle after medial opening wedge high tibial osteotomy: case series / Medida do ângulo de inclinação ântero-posterior do planalto tibial após osteotomia valgizante proximal da tíbia com cunha de abertura medial: série de casos

CONTEXT AND OBJECTIVE: In the past, changes in tibial slope were not considered when planning or evaluating osteotomies, and success in high tibial osteotomy was related to the alignment and amount of femorotibial angular correction. The aim here was to measure changes in tibial slope after medial opening wedge tibial osteotomy and investigate the effect of tibial slope angle on the clinical results. DESIGN AND SETTING: Retrospective review study on a series of cases, at the Department of Orthopedics and Traumatology, Faculdade de Medicina de Marília (Famema), Marília, Brazil. METHODS: Twenty-eight patients were studied, and a total of thirty-one knees. Lateral roentgenograms of the tibia were used pre and postoperatively to measure the tibial slope based on the proximal tibial anatomical axis. The clinical results were measured using the Lysholm knee score. RESULTS: There was an average increase in tibial slope angle after surgery of 2.38° (95 percent confidence interval: ± 0.73°). There was no correlation (r = -0.28) between the postoperative Lysholm knee score and the difference in tibial slope angle from before to after surgery (P = 0.13). CONCLUSION: Medial opening wedge tibial osteotomy led to a small increase in tibial slope. No significant correlation was found between increased tibial slope and short-term clinical results after high tibial osteotomy. Other clinical studies are needed in order to establish whether extension or flexion osteotomy could benefit patients with medial compartment gonarthrosis.

CONTEXTO E OBJETIVO: No passado, alterações no ângulo de inclinação ântero-posterior do planalto tibial (AIAPPT), conhecido como "slope", não eram levadas em consideração no planejamento e avaliação das osteotomias, e o sucesso da osteotomia proximal tibial era relacionado ao grau de correção do ângulo femoro-tibial e ao alinhamento obtido. O objetivo foi mensurar a alteração no AIAPPT após a osteotomia proximal de abertura de cunha medial da tíbia e verificar o efeito da variação angular do AIAPPT sobre os resultados clínicos. TIPO DE ESTUDO E LOCAL: Estudo retrospectivo de série de casos, realizado no Departamento de Ortopedia e Traumatologia da Faculdade de Medicina de Marília (Famema), Marília, São Paulo, Brasil. MÉTODOS: Foram incluídos 28 pacientes, e um total de 31 joelhos. Foi mensurado o AIAPPT baseado no eixo anatômico proximal tibial na radiografia lateral da tíbia no pré e no pós-operatório. A avaliação clínica foi realizada através do escore de Lysholm para joelho. RESULTADOS: Houve um aumento do AIAPPT após a cirurgia em média de 2,38° (± 0,73°; intervalo de confiança, IC 95 por cento). Não houve correlação (r = -0,28) entre os resultados obtidos pelo escore de Lysholm pós-operatório e a diferença do AIAPPT pós e pré-operatório (P = 0,13). CONCLUSÃO: A osteotomia valgizante da tíbia proximal com cunha de abertura medial levou a um pequeno aumento no AIAPPT. Não houve correlação entre o aumento do slope tibial e os resultados clínicos a curto prazo após a osteotomia proximal da tíbia. Outros estudos clínicos são necessários para comprovar se uma osteotomia de extensão ou de flexão pode trazer benefício ao paciente com artrose unicompartimental do joelho.

Protesis patelofemoral: Resultados preliminares: Experiencia Clinica Las Condes / Patellofemoral prosthesis: Preliminary results: Las Condes Clinic experience

Objetivo: Analizar las prótesis patelofemorales modelo Avon (Stryker) realizadas en nuestro centro clínico, evaluando sus resultados a la fecha. Material y Método: Trabajo descriptivo. Revisión de los pacientes con artrosis patelofemoral de la rodilla en los que se realizó una artroplastía patelofemoral con el implante Avon, desde el año 2005 hasta la fecha. Se obtuvieron los datos epidemiológicos, cirugías previas, score preoperatorio (Oxford para prótesis patelofemoral, puntaje máximo 48 puntos) y score post-operatorio (encuesta personal o telefónica). Resultados: Durante el periodo se realizaron 30 implantes en 26 pacientes. El rango de edad fue de 37 a 85 años, promedio de 61 años. La distribución por sexo mostró una mayor frecuencia de mujeres (23 mujeres v/s 3 hombres). El seguimiento es de 35 a 6 meses con un promedio de 25 meses. El score pre-opeeratorio fue de 17-33 pts con un promedio de 24 pts. El score post-operatorio promedio fue de 45 puntos. Un caso requirió una artroscopia a los 6 meses post-operatorio debido a una sinovitis. Hasta el momento no hay revisiones. Conclusiones: El grupo analizado muestra un seguimiento corto, no obstante, los resultados a corto plazo son satisfactorios, con un significativo alivio de la sintomatología. Nuestros resultados son concordantes con la literatura. Consideramos que la prótesis patelofemoral es una alternativa viable para nuestros pacientes que presenta una artrosis limitada a la articulación patelofemoral.

Evaluación del componente patelar en artroplastía total de rodilla / Evaluation of patellar resurfacing in total knee arhtroplasty

Ever since the first Total Knee Arthroplasty was made to our present times, a point that still generates controversy is, if the accomplishment of patellar resurfacing will take to a higher global rate of complications. It was the final objective of our work to analyze clinically and radiologically, in addition to satisfaction degree and quality of life surveys, the patellar resurfacing in a sample of total knee arthroplasty made in our center. We can conclude that in our experience, the patellar resurfacing has a low incidence of complications, which do not affect in a significant way the quality of life of the patients carrying on a total knee arthroplasty, which justifies this procedure absolutely.

Desde que se realizan las Artroplastías Totales de Rodilla hasta la fecha, un punto que genera controversia, es, si la realización de un componente protésico patelar llevará a una mayor tasa global de complicaciones. Es por eso que el objetivo de nuestro trabajo fue analizar clínica y radiológicamente, además de encuestas del grado de satisfacción, el componente de recubrimiento patelar en una muestra de las artroplastías totales de rodilla realizadas en nuestro centro. Se concluye que en nuestra experiencia, el uso de recubrimiento patelar tiene una baja incidencia de complicaciones, las cuales no afectan de manera significativa la calidad de vida de los pacientes con artroplastía total de rodilla, lo que justifica plenamente su utilización.