The practice of synovectomy showed no difference either in blood loss or in the number of transfusions. The findings of this study indicate that the practice of a synovectomy in a standard total knee replacement does not generate any benefit or prejudice as to the blood factor of the total knee arthroplasty.

Objectives: Shoulder pain associated with upper limb musculoskeletal disorders is an important health problem in clinical practice due to its high prevalence, frequent consultations in primary healthcare and occupational health. Preventive strategies, including information disseminated among workers, can be useful. The aim of this study is to analyze the associations between non-traumatic osteomuscular diseases of the shoulder and the workers' knowledge of the risks at the workplace and preventive measures developed there, as well as the association with ergonomic requirements. Material and Methods: An observational case-control study was carried out on an occupationally active population assisted during 1 year in 1 healthcare center, involving 690 participants. Data were collected through a questionnaire including sociodemographic variables, the workplace, the knowledge of prevention and ergonomic requirements. The independent effect of the variables associated with non-traumatic shoulder pathology was explored through logistic regression. Results: In total, 66.7% of the participants stated that they had been informed of the occupational hazards related to their jobs. The following variables were associated with a lower probability of shoulder injuries: male gender, working hours > 9 h/day or > 40 h/week, as well as having information on the risks associated with the workplace, using personal protective equipment, the existence of an occupational risks prevention service and/or risk assessment, the knowledge of the prevention plan, periodic medical examinations, and using one arm or physical force at work. A multivariate analysis revealed that the risk increased with age and lower educational levels, forced postures, repeated gestures, monotony and temporary absences from work. Furthermore, being informed of workplace risks, and using a single arm as well as physical force were shown as independent protective factors. Conclusions: Information on both the ergonomic requirements and how

Objetivo: Describir las secuelas referidas en los casos atendidos por patología no traumática del hombro . Y conocer cómo se asocian con la presencia de secuelas las características sociodemográficas, disponer de conocimientos en prevención de riesgos laborales y los requerimientos ergonómicos del puesto de trabajo.  Métodos: Estudio observacional transversal en una población de 345 pacientes atendidos durante un año en las consultas de un centro de atención primaria de salud en Alicante. Mediante la prueba de la Ji-cuadrado se estudiaron las asociaciones entre las secuelas y el resto de variables.  Resultados: El 53,9% (n=186) de los participantes refirieron presentar secuelas derivadas, sobre todo dolor ocasional asociado o no a limitación de la movilidad. Son factores de riesgo: un bajo nivel de estudios, actividades de limpieza y sector industrial, alzar los brazos por encima del hombro y la monotonía en las tareas. Sin embargo, son factores protectores: el sexo masculino, disponer de información sobre los riesgos laborales, equipos de protección individual, existencia de Servicio de Prevención de Riesgos Laborales, evaluación de riesgos, plan de prevención y los reconocimientos médicos periódicos. Conocer los riesgos del puesto se mostró como factor de protección independiente frente al desarrollo de secuelas (ORa=0,2; IC95%=0,1-0,4). Sin embargo, alzar el brazo por encima del hombro, se comporta como factor de riesgo independiente para el desarrollo de secuelas por patología del hombro (ORa=2,1; IC95%=1,0-4,3). Conclusiones: La combinación de estrategias ergonómicas y formativas parecen útiles para la prevención del desarrollo de secuelas a nivel del hombro.

Influencia de los requerimientos ergonómicos y recursos preventivos percibidos en el desarrollo de bajas laborales por patología no traumática del hombro