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Hip implant showdown: which stem saves more bone?

NCT ID NCT01285843

Completed Knowledge-focused Sponsor: Medacta International SA Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 40 people who had a total hip replacement through a small incision in the front of the hip. Researchers compared two types of metal stems (AMIStem and Quadra) to see how bone density around the implant changed one year after surgery. The goal was to find out if one stem leads to better bone preservation.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to
If successful, this study could help surgeons choose which implant type leads to better bone preservation after hip replacement.
What could go wrong
This is a small, completed observational study with only 40 participants, so results may not apply to all patients. It does not test a new treatment or cure.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

arthritic joint disease avascular necrosis developmental dysplasia of the hip femoral neck fracture Hip Dislocation, Congenital hip fracture osteoarthritis osteonecrosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ARTHRITIS AVASCULAR NECROSIS CONGENITAL HIP DYSPLASIA FRACTURE OF THE FEMORAL NECK OR HEAD OSTEOARTHRITIS

Contacts and locations

Locations

  • St. Elisabeth Dillingen

    Dillingen an der Donau, Bavaria, 89407, Germany

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