Actively Recruiting
Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty
Led by Medstar Health Research Institute · Updated on 2026-01-13
100
Participants Needed
1
Research Sites
108 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
This is a prospective randomized control trial comparing two collared and collarless femoral implants used in primary total hip arthroplasty. The specific aims of this trial are to: SA1: Prospectively assess clinical outcomes in patients undergoing primary total hip arthroplasty with a collared versus collarless femoral stem of the same design. SA2: Evaluate serial radiographs to quantify differences in subsidence between collared and collarless implant groups. SA3: Report and compare incidence rates of intraoperative and postoperative periprosthetic fractures and aseptic loosening following primary total hip arthroplasty with use of either a collared or collarless stem. Hypothesis: The addition of a collar to the same designed triple-taper primary hip stem will lead to a reduction in subsidence and incidence of perioperative and periprosthetic femur fractures.
CONDITIONS
Official Title
Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults (≥ 18 years old) scheduled for primary, uncemented total hip arthroplasty using a cementless femoral stem
- Diagnosis of primary osteoarthritis or other non-inflammatory degenerative joint disease
- Ability and willingness to comply with study procedures and follow-up schedule
- Ability to provide written informed consent
You will not qualify if you...
- Patients not indicated for a cementless total hip arthroplasty
- Prior surgery on the same hip (e.g., prior total hip arthroplasty, internal fixation, osteotomy)
- Use of cemented or hybrid femoral components
- Revision or conversion total hip arthroplasty
- Active or prior infection of the hip joint
- Severe osteoporosis (T-score ≤ -2.5) or known metabolic bone disease
- Inability to complete follow-up or anticipated relocation out of the area
AI-Screening
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Trial Site Locations
Total: 1 location
1
MedStar Georgetown University Hospital
Washington D.C., District of Columbia, United States, 20007
Actively Recruiting
Research Team
M
Miles Hollimon, B.S.
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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