A Prospective, Single-Blinded, Partially Randomized Three-Cohort Study Comparing Manual Direct Anterior and Manual Posterior Approaches to a Non-Randomized Robotic Posterior Cohort for Total Hip Arthroplasty Using Gait Analysis
Ochsner Health System
Summary
The purpose of this study is to evaluate the gait biomechanics following THA on 3 groups of subjects undergoing DAA (manual) and PA (manual and robotic) surgical approaches.
Description
Single-center, three-arm, partially randomized interventional study comparing gait biomechanics after primary total hip arthroplasty (THA) via (1) manual direct anterior approach (DAA), (2) manual posterior approach (PA), and (3) robotic-assisted posterior approach (rPA). One surgeon's patients are randomized to DAA vs PA; the second surgeon's patients receive rPA per routine practice. Outcomes assessors are blinded (motion-capture suit conceals dressings/scars). Gait and sit-to-stand analyses are performed pre-op and at 6 and 12 weeks post-op using a Vicon motion capture system with force pla…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Adults aged \>18 undergoing primary elective THA for osteoarthritis * BMI \<35 * Ability to walk unassisted (cane, walker, wheelchair, ect) for \> 150 feet preoperatively Exclusion Criteria: * Previous hip surgery on the affected side * Neurological disorders affecting gait * Contraindication to either DAA or PA
Interventions
- ProcedureTotal hip arthroplasty via direct anterior approach (manual, non-robotic)
Primary THA performed via a direct anterior approach without robotic assistance
- ProcedureTotal hip arthroplasty via posterior approach (manual, non-robotic)
Primary THA performed via a posterior approach without robotic assistance
- ProcedureRobotic-assisted total hip arthroplasty via posterior approach
Primary THA via posterior approach using pre-op CT-based planning and intra-op robotic assistance
Locations (2)
- Ochsner Health Center - ElmwoodMetairie, Louisiana
- Ochsner Medical CenterNew Orleans, Louisiana