Evaluate the effect of the PICO medical device, compared to the Opsite Post-Op Visible medical device, in reducing the formation of postsurgical hematoma in the surgical wound of patients at high risk of local complications, undergoing hip arthroplasty

Inclusion Criteria:

• aged between 55 and 85 years inclusive,
• Patients with BMI ≥ 30 + ASA 3 + Diabetes mellitus
• Patients suffering from coxarthrosis candidates for hip arthroplasty surgery or revision of hip arthroplasty

Exclusion Criteria:

• Age> 85 years, <55 years
• Patients who are unable to understand and want.
• Patients with severe neurological disorders or with severe disabilities.
• Oncological patients and patients with malignant tumor at the edge of the wound
• Patients who have undergone radiotherapy treatment
• Patients with bleeding disorders
• Patients on anticoagulant treatment with warfarin or NAO
• Previously confirmed osteomyelitis
• Patients with liver cirrhosis
• Patients with non-enteric fistulas
• Patients with necrotic tissue with the presence of eschar at the intervention site
• Patients with autoimmune thrombocytopenia.