Clinical Research Directory

Dual vs. Single-Antibiotic Impregnated Cement in Hemiarthroplasty for Femoral Neck Fracture

Rational for conducting the study: Periprosthetic joint infection (PJI) is the most feared complication following prosthetic replacement of the hip joint and is associated with increased mortality, morbidity and economic burden. The aim of the trial is to investigate whether the risk of periprosthetic joint infection after treatment with hemiarthroplasty performed due to femoral neck fracture is reduced after the use of dual-impregnated antibiotic loaded cement. The primary outcome variable is the incidence of periprosthetic joint infection within one year after the index procedure. Secondary outcome variables include the occurrence of re-operations for any reason, bacteriology, antibiotic treatment, mortality and health care costs.

Study of the Aortic and Large Arterial Vessel Infections

Aortic or large arterial vessel infections are rare but serious infections. Their management is based on French and American expert opinions. The quality of evidence supporting these guidelines is low because most publications on the subject correspond to case series and few interventional studies have been performed to validate their management. However, referral centres for vascular surgery are frequently solicited to give their opinion on patients suffering from mycotic aneurysms. In addition, the last few decades have seen the improvement of vascular surgery techniques allowing the management of more and more patients, often elderly and comorbid. There has therefore been an increase in the incidence of infectious complications associated with this care. It is therefore essential to participate in research on aortic and large arterial vessel infections. For this, a monocentric cohort study seems to be an essential first step to better understand the polymorphism and complexity of these patients.

Soft Tissue Response to Different Restorative Materials Used in Implant Dentistry

The goal of this clinical trial is to learn how different materials used in dental implants affect the surrounding gum tissue in adults who need dental implants. The main questions it aims to answer are: How do different materials (titanium, PEEK, zirconia, and lithium disilicate) affect inflammation around dental implants? What changes occur in inflammation markers in the gum tissue after 3 and 6 months? Researchers will compare the different materials to see which one causes the least amount of inflammation. Participants will: Receive dental implants made from different materials. Have samples of fluid from around their implants collected for analysis at 3 and 6 months. Undergo regular dental check-ups to measure gum health, such as bleeding and pocket depth around the implants.

Rifabutin Versus Rifampicin for Treatment of Staphylococcal PJI Treated With DAIR

Rifampicin, is key in the treatment of staphylococcal PJIs. Rifabutin has a better profile of tolerance than rifampicin regarding the risk of interaction with concomitant medications and liver disorders. The hypothesis is that rifabutin may be an alternative antibiotic option as efficient as rifampicin for the treatment of staphylococcal PJIs, with a better safety profile. The investigator aim to demonstrate the non-inferiority of rifabutin as compared with rifampicin prescribed in combination treatment for PJIs.