Comparing bikini and longitudinal incisions for hip replacement surgery

A Clinical Comparison in Wound Healing of Bikini Versus Longitudinal Incision in Direct Anterior Approach Total Hip Arthroplasty in the Obese Patient Population: A Randomized Control Trial

Not applicable Interventional University of Miami · NCT06831045

This study is testing whether a bikini-style incision or a longer incision during hip replacement surgery helps people heal better and feel more satisfied with their results.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment110 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Miami Academic / other
Locations1 site (Miami, Florida)
Trial IDNCT06831045 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the differences in wound healing and participant satisfaction between two types of incisions—bikini and longitudinal—used during total hip arthroplasty performed via the direct anterior approach. Patients with a body mass index of 30 or greater who are undergoing primary unilateral hip replacement will be included. The study will assess outcomes related to recovery and satisfaction to determine if one incision type offers advantages over the other.

Who should consider this trial

Good fit: Ideal candidates for this study are patients with a body mass index of 30 or greater who are scheduled for primary unilateral total hip arthroplasty.

Not a fit: Patients with a body mass index less than 30 or those with prior hip surgeries will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical techniques that enhance recovery and satisfaction for patients undergoing hip replacement.

How similar studies have performed: While there may be studies comparing incision types in other surgical contexts, this specific comparison in the direct anterior approach for total hip arthroplasty is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with body mass index greater than or equal to 30
* Patients undergoing primary unilateral DAA THA
* Patients undergoing primary THA

Exclusion Criteria:

* Patients with body mass index less than 30
* Patients with a history of prior open surgery on the affected hip
* Patients unable/unwilling to undergo spinal anesthesia under monitored anesthesia care (MAC)
* Patients with allergies or absolute contraindication to standardized drugs administered within the University of Miami protocol for total hip replacement
* The following groups will not be included: adults unable to consent, individuals who are not yet adults, pregnant women, prisoners.

Where this trial is running

Miami, Florida

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions THA
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.