Risk Factors The following factors may result in poor results with this prosthesis: • overweight*; • strenuous physical activities (active sports, heavy physical work); • incorrect implant positioning; • muscle deficiencies; • multiple joint disabilities; • refusal to modify postoperative physical activities; • patient history of infections or falls; • systemic diseases and metabolic disorders; • local or disseminated neoplastic diseases; • drug therapies that adversely affect bone quality, healing, or resistance to infection; • drug use or alcoholism; • immunocompromised patients (HIV, tumour, infections);
• severe deformity leading to impaired anchorage or improper positioning of implants; • use or combination with products, prosthesis or instruments of another manufacturer.
*According to the definition of World Health Organization (WHO), Body Mass Index (BMI) greater than or equal to 25 Kg/m².
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