Análise da qualidade de vida de pacientes osteoartrósicos submetidos à artroplastia total do quadril

Abstract

Total hip replacement is one of the most cost-effective procedures upon the locomotor system. Most of the publications covers only the technical aspects and the performance of implants and neglects the impact on the quality of life and comorbidities, making the correct measurement of a treatment benefits imprecise. Nowadays, the measurement of health-related quality of life associated with functional scales has become imperative for more accurate analysis of results and influencing factors. To assess the health – related quality of life in patients with osteoarthritis and undergoing total hip arthroplasty was the main goal in this study. A cohort of 38 patients from a regional referral teaching hospital was prospectively followed up for at least six months until they have achieved satisfactory rehabilitation. Secondarily, the short-term performance of the MD-4® acetabular component implanted in 35 individuals was evaluated. Data were obtained through the application of four instruments: 1) questionnaire for socio-demographic and clinical characteristics of the sample; 2) functional scale of the hip - Harris Hip Score (HHS); 3) generic instrument for assessing health-related quality of life The Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) and 4) questionnaire assessing individual satisfaction with the procedure. The results pre and postoperatively were analyzed using descriptive statistics and compared with the literature. The SF-36 results pre and post-operative were functional capacity: 13.4 to 53.7, limited by physical aspects: 9.21 to 48.0; pain: 23.1 to 62.6, general health: 54.2 to 71.3; vitality: 40.3 to 69.9; social aspects: from 40.8 to 74.3, limited by emotional aspects: from 23.7 to 64.9; mental health: 52.6 - 80.4. The Harris Hip Score ranged from 36.1 to 92.1 on average. All results were statistically significant (p < 0.001). The combination of two scales showed up to be valuable in bias identification and gave more reliability on the variables understanding. The study reports a significant improvement in health-related quality of life in patients affected by osteoarthritis of many etiologies that underwent total hip replacement. Healthrelated quality of life assessment does not replace clinical evaluation provided by specific instruments and the physician’s experience but can add important data and also can be considered an efficient tool in analyzing outcomes of total hip replacement due to the weight it gives to the patient’s expectations regarding a medical treatment.Additionally , the study showed up evidence of osteointegration and stability of the acetabular cup in all cases, which would be a predictor factor for mid-term survivorship of this acetabular component.