Hip stem movement measured in new study

NCT ID NCT04879732

Completed Knowledge-focused Sponsor: Canadian Radiostereometric Analysis Network Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study measured how much the ACTIS hip stem moves (subsides) over two years after hip replacement surgery in 64 people with hip osteoarthritis. Researchers used a special X-ray technique called RSA to compare the implant's movement to published data for similar hip stems. The goal was to see if the ACTIS stem stays in place as well as other designs.

What this could mean

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

Active substance: ACTIS hip stem (a medical device used in hip replacement surgery)
What this could lead to: If successful, this study could confirm that the ACTIS hip stem stays in place well, which may lead to better long-term outcomes for hip replacement patients.
What could go wrong: This is a small, completed study focused on measuring implant movement, not on curing disease. Results may not apply to all patients or guarantee better outcomes.

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.

osteoarthritis, hip

As listed by the trial registrant

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

HIP OSTEOARTHRITIS

Contacts and locations

Locations

London Health Sciences Centre

London, Ontario, N6A 5W9, Canada
Nova Scotia Health - Orthopedic

Halifax, Nova Scotia, B3H 2E1, Canada
Orthopaedic Innovation Centre

Winnipeg, Manitoba, R2K 2M9, Canada

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