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Alexis O-Ring and Charnley Retrievers and Its Effect on Contamination on Total Hip Arthroplasty
Sponsor: Hospital del Mar
Summary
Randomized, prospective, single-blind clinical trial comparing two static wound retractors - the Charnley retractor and the Alexis O-Ring retractor - in primary total hip arthroplasty (THA). The primary objective is to compare surgical site contamination rates between the two devices. Secondary objectives include comparison of incision length, surgical time, intraoperative skin lesions, and postoperative complications including periprosthetic joint infection. Patients will be randomized 1:1 to either retractor group. Surgical site contamination will be assessed through four intraoperative cultures taken at standardized timepoints. Follow-up will be conducted at 1 month postoperatively.
Official title: Alexis O-Ring and Charnley Retrievers in Total Hip Arthroplasty Surgery. Is There Any Difference in Intraoperative Contamination Rates?
Key Details
Gender
All
Age Range
Any - Any
Study Type
INTERVENTIONAL
Enrollment
144
Start Date
2024-04-20
Completion Date
2026-03-10
Last Updated
2026-06-02
Healthy Volunteers
No
Conditions
Interventions
Alexis O-Ring Wound Retractor
Circular polyurethane wound retractor (Applied Medical, Rancho Santa Margarita, CA, USA). A rigid deep ring is placed beneath the fascia lata, and the polyurethane cylinder is rolled around the outer ring to retract wound edges and create a physical barrier between the skin and the surgical field.
Charnley Retractor
Semi-rigid stainless steel ortostatic retractor consisting of a bow with two blades (one fixed, one adjustable). Placed around the incision at the level of the fascia lata to retract wound edges through elastic tension. Standard retractor currently used in total hip arthroplasty.
Locations (1)
Hospital del Mar
Barcelona, Spain