NCT07337642 Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty
| NCT ID | NCT07337642 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Medstar Health Research Institute |
| Condition | Primary Total Hip Arthroplasty |
| Study Type | INTERVENTIONAL |
| Enrollment | 100 participants |
| Start Date | 2025-12-03 |
| Primary Completion | 2026-12-31 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 100 participants in total. It began in 2025-12-03 with a primary completion date of 2026-12-31.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
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.
Eligibility Criteria
Inclusion Criteria: * 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 Exclusion Criteria: * 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.
Contact & Investigator
Frequently Asked Questions
Who can join the NCT07337642 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 99 Years, studying Primary Total Hip Arthroplasty. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07337642 currently recruiting?
Yes, NCT07337642 is actively recruiting participants. Contact the research team at miles.hollimon@medstar.net for enrollment information.
Where is the NCT07337642 trial being conducted?
This trial is being conducted at Washington D.C., United States.
Who is sponsoring the NCT07337642 clinical trial?
NCT07337642 is sponsored by Medstar Health Research Institute. The trial plans to enroll 100 participants.