Risk of Revision Following Knee Arthroplasty in Bariatric Surgery Patients

Bispebjerg Hospital

Status: Not yet enrolling

Conditions: Prosthesis-Related Infections; Arthritis Knee; Bariatric Surgery Candidate; Prosthesis Failure; Prosthesis Survival

Treatments: Other: Non-BAS; Other: BAS

Study type: Observational

Funder types: Other

Identifiers

NCT06433700

p-2023-14433

Details and patient eligibility

About

Previous studies have investigated the outcomes of Knee Arthroplasty (KA) following Bariatric Surgery (BAS), but with substantial limitations as not stratifying for Body Mass Index (BMI) at time of KA or not addressing the type of BAS (gastric bypass, banding or sleeve). Since BMI varies greatly in patients with previous BAS, it is likely that BMI affects outcomes after KA in BAS-operated patients.

The investigators believe that stratifying for BMI would explain the contradictions with the previous research in this patient group when it comes to the risk of revision after KA.

Enrollment: 90,000 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Primary knee arthroplasty due to osteoarthritis

Exclusion criteria

• Primary knee arthroplasty due to traumatic osteoarthritis.

Trial design

90,000 participants in 2 patient groups

BAS group

Description:

Patients who received bariatric surgery prior to their knee arthroplasty

Treatment:

Other: BAS

Non-BAS group

Description:

Patients who did not receive bariatric surgery prior to their knee arthroplasty

Treatment:

Other: Non-BAS