ABSTRACT
OBJECTIVE: Computer-assisted surgery application in total knee arthroplasty (TKA) has shown more accurate implant alignment compared with conventional instrumentation and is associated with more homogeneous alignment results. Although longer implant survival and superior clinical outcomes should be expected from navigated TKA, currently available evidence does not support this hypothesis. The aim of this study was to compare navigated TKA with conventional TKA regarding clinical and radiological outcomes after a 3-year follow-up under the hypothesis that navigated TKA would provide better outcomes than conventional TKA. MATERIAL AND METHOD: In a prospective multicentre study, 119 patients underwent navigated TKA and 80 patients received conventional instrumentation. Patients were evaluated at the baseline and at postoperative months 3, 12, 24, and 36. Analysis included the American Knee Society Score (KSS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Short Form-12 (SF12) Health Survey, and radiographic assessment. RESULTS: All clinical scores improved significantly for all patients during the follow-up but were significantly better in the navigation group. The percentage of patients showing a mechanical axis between 3° of varus and 3° of valgus was significantly higher in the ATR group (93%) than in the conventional TKA group (71%) (P<.01). CONCLUSIONS: The use of computer-assisted surgery in TKA provides more accurate mechanical alignment and superior short-term functional outcomes compared to conventional TKA.
ABSTRACT
Objetivo: Evaluar la influencia de la estabilidad mediolateral de las artroplastias totales de rodilla implantadas con navegación quirúrgica en sus resultados clínicos a corto plazo. Material y métodos: Estudio prospectivo multicéntrico de 111 pacientes intervenidos con artroplastia total de rodilla mediante cirugía asistida por ordenador. Los resultados clínicos y funcionales se evaluaron a los 3 y seis meses mediante las escalas KSS, WOMAC y SF-12 y se correlacionaron con la información que mostraba el sistema de navegación intraoperatoriamente en cuanto a la estabilidad mediolateral en extensión, a los 20° y a los 90° de flexión. Resultados: No se encontró relación entre los resultados clínicos y funcionales y la estabilidad mediolateral medida intraoperatoriamente. Conclusiones: Las variaciones en la estabilidad mediolateral de las artroplastias de rodilla no han mostrado una influencia significativa en los resultados clínicos a corto plazo (AU)
Objective: To evaluate the influence of the medial-lateral stability of the joint on the short-term clinical outcomes after performing navigation in total knee replacement. Material and methods: A multicentre prospective study was conducted on 111 consecutive total knee replacements performed with computer assisted surgery. The study included the evaluation of KSS, WOMAC, and SF-12 preoperatively, and at 3 and 12 months of follow-up, and correlation with stability data obtained during surgery, in extension and at 20° and 90° of flexion. Results: No differences were found in WOMAC, KSS and SF-12 relative to coronal stability during surgery. Conclusions: Variations in coronal stability were shown to have no influence on the short-term clinical results of navigated total knee replacement (AU)
Subject(s)
Humans , Arthroplasty, Replacement, Knee/rehabilitation , Surgery, Computer-Assisted , Osteoarthritis, Knee/surgery , Recovery of Function , Prospective StudiesABSTRACT
OBJECTIVE: To evaluate the influence of the medial-lateral stability of the joint on the short-term clinical outcomes after performing navigation in total knee replacement. MATERIAL AND METHODS: A multicentre prospective study was conducted on 111 consecutive total knee replacements performed with computer assisted surgery. The study included the evaluation of KSS, WOMAC, and SF-12 preoperatively, and at 3 and 12 months of follow-up, and correlation with stability data obtained during surgery, in extension and at 20° and 90° of flexion. RESULTS: No differences were found in WOMAC, KSS and SF-12 relative to coronal stability during surgery. CONCLUSIONS: Variations in coronal stability were shown to have no influence on the short-term clinical results of navigated total knee replacement.
Subject(s)
Surgery, Computer-Assisted , Adult , Aged , Aged, 80 and over , Arthroplasty, Replacement, Knee/methods , Female , Humans , Male , Middle Aged , Prospective Studies , Range of Motion, Articular , Time Factors , Treatment OutcomeABSTRACT
Objetivo. Valorar las variaciones existentes en la huella plantar en función de la edad y analizar qué factores podrían estar relacionados en su evolución. Material y método. Se realiza estudio y exploración de 1.014 individuos en edad escolar, entre los 3 y 11 años, analizando factores tales como huella plantar en el examen podoscópico, valgo del talón, tipo de calzado y número de horas diarias que utilizan el calzado, morfotipo del pie, así como los valores de rotaciones de las caderas. Resultados. Se constata que tanto el hundimiento del arco plantar interno, así como el elevado valor de valgo de talón existente en las edades más precoces se va corrigiendo espontáneamente con el crecimiento, existiendo una relación estadísticamente significativa entre el aumento de la edad y la normalización de dichos valores, sin que los mismos se vean modificados o influenciados por diversos factores tales como tipo de calzado, número de horas que mantienen este a diario, morfotipo de pie o valores angulares de rotación de las caderas.Conclusiones. El desarrollo podálico es un proceso fisiológico evolutivo, no pudiéndose considerar como un problema ortopédico la existencia de un pie plano valgo en las edades más precoces de la infancia, ya que en la mayoría de ellos se corrige espontáneamente con el crecimiento
Aim. To assess variations in the footprint with age and to analyze the factors related to evolution. Materials and methods. A study was made of 1014 schoolchildren from 3 to 11 years of age. We analyzed the podoscopic study, heel valgus, type of footwear, and daily use in hours of the footwear, foot morphotype, and hip rotational values. Results. Reduced inner foot arch and high-value heel valgus at an early age corrected spontaneously with growth; older age showed a statistically significant relation with normalization of these values. These values were modified or influenced by factors such as the type of footwear, daily use of footwear in hours, foot morphotype, and angular hip rotation. Conclusions. Foot development is a progressive physiologic process. The existence of valgus flatfoot at an early age cannot be considered an orthopedic problem because it usually corrects spontaneously with growth
Subject(s)
Male , Female , Child , Child, Preschool , Humans , Foot Deformities/physiopathology , Flatfoot/epidemiology , Dermatoglyphics , Shoes/statistics & numerical data , Orthotic Devices , Flatfoot/physiopathologyABSTRACT
La Displasia campomélica es un cuadro clínico caracterizado por la curvatura y acortamiento simétrico de extremidades inferiores, facies peculiar y generalmente mortal por insuficiencia respiratoria.Esta enfermedad se asocia en el 50 por ciento de las ocasiones a disgenesia gonadal con un fenotipo femenino y un cariotipo XY. Se trata de un proceso genéticamente determinado y ligado a mutaciones del gen SOX9.Presentamos el caso clínico de un recién nacido mujer, de 37 semanas de edad gestacional, diagnosticado prenatalmente de displasia ósea, con fenotipo y estudio radiológico compatible con las características de esta enfermedad. Destaca la concordancia entre el fenotipo femenino y su fórmula cromosómica XX.Durante su estancia presentó distress respiratorio progresivo, falleciendo a los 27 días de edad por fallo multiorgánico (AU)
