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Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty
NCT07337642 · View on ClinicalTrials.gov ↗
Study 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.
Conditions Studied
Interventions
- OTHER Collarless Femoral Stem
- OTHER Collared Femoral Stem
Study Locations (1)
District of Columbia
- MedStar Georgetown University Hospital — Washington D.C.
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 100 participants |
| Start Date | 2025-12-03 |
| Est. Completion | 2027-12-31 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT07337642
The ClinicalTrials.gov registry entry for NCT07337642 describes a study currently listed as recruiting. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 100 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Medstar Health Research Institute, which has 130 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Primary Total Hip Arthroplasty appearing as the primary indexed condition, and to 2 interventions — of which Collarless Femoral Stem is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT07337642 reports 1 study location spanning 1 distinct geographic area — top geographies include District of Columbia. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT07337642 about?
NCT07337642 is a clinical study titled "Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty". 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 ver...
What is the current status of trial NCT07337642?
This trial is currently recruiting. It is a NA study. The enrollment target is 100 participants. The study started on 2025-12-03. Estimated completion is 2027-12-31.
What conditions does trial NCT07337642 study?
This clinical trial studies the following conditions: Primary Total Hip Arthroplasty. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT07337642?
The interventions under investigation include: Collarless Femoral Stem (OTHER), Collared Femoral Stem (OTHER). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT07337642?
This trial is sponsored by Medstar Health Research Institute, which has 130 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT07337642 being conducted?
This trial has 1 study location across District of Columbia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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