Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty
Recruiting now · Not applicable
Conditions studied: Primary Total Hip Arthroplasty
In brief
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.
Key facts
- Study ID
- NCT07337642
- Run by
- Medstar Health Research Institute
- People needed
- 100
- Starts
- 2025-12-03
- Expected to finish
- 2027-12-31
- Last updated by the study team
- 2026-01-13
Who can join
Age: 18 and older, up to 99. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Adults (≥ 18 years old) scheduled for primary, uncemented THA 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 may not qualify if…
- Patients not indicated for a cementless THA
- Prior surgery on the ipsilateral hip (e.g., prior THA, internal fixation, osteotomy)
- Use of cemented or hybrid femoral components.
- Revision THA or conversion THA
- 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.
Where it is running
- MedStar Georgetown University Hospital — Washington D.C., District of Columbia, United States (enrolling)
Full record on ClinicalTrials.gov
Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.