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Study identifier: NCT07337642 Synced from ClinicalTrials.gov · July 28, 2026
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Comparing Collared and Collarless Femoral Stems in Primary Total Hip Arthroplasty

Condition: Primary Total Hip Arthroplasty  ·  Sponsor: Medstar Health Research Institute

PhaseNA
Planned participants100
Who can joinAll sexes, 18 Years to 99 Years
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

Talk to the study team

Miles Hollimon, B.S.  ·  (202) 444-8766  ·  miles.hollimon@medstar.net

Always discuss trial participation with your own doctor first.

Locations (1)

MedStar Georgetown University HospitalWashington D.C., District of Columbia, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT07337642