Comparing the use of screws in hip replacement surgery

Migration Analysis of a Hybrid Hip Replacement Evaluating Stem and Ancillary Acetabular Screw Fixation-A Randomized Controlled CT-RSA Trial

Not applicable Interventional Helse Møre og Romsdal HF · NCT06499038

This study is testing whether using screws in hip replacement surgery helps older patients with hip osteoarthritis have better and more stable implants compared to not using screws.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment60 (estimated)
Ages65 Years to 80 Years
SexAll
SponsorHelse Møre og Romsdal HF Government
Drugs / interventionsradiation
Locations1 site (Kristiansund, Møre and Romsdal)
Trial IDNCT06499038 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effectiveness of using ancillary screws in the ACE acetabulum cup during total hip arthroplasty compared to not using screws. It involves patients aged 65 to 80 with hip osteoarthritis who will undergo surgery and be monitored for implant migration and fixation using CT-based Radiostereometric Analysis. The study seeks to predict the long-term survival of the implants by assessing their stability over time. Participants will be followed up with imaging and patient-reported outcomes to gather comprehensive data on the procedure's success.

Who should consider this trial

Good fit: Ideal candidates are patients aged 65 to 80 with primary hip osteoarthritis requiring total hip replacement.

Not a fit: Patients who have had previous hip surgeries, severe obesity, or other significant health issues may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved longevity and durability of hip implants, reducing the need for revision surgeries.

How similar studies have performed: This approach is innovative and represents one of the first studies using CT-RSA for this purpose in Norway, indicating a novel exploration in the field.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* • Patients with primary hip osteoarthritis between the age of 65 and 80 years at time of surgery

  * Patients requiring primary total hip replacement
  * Patients who understand the conditions of the study, are willing to, and able to comply with the postoperative scheduled clinical and radiographic evaluations

Exclusion Criteria:

* • Patients who are unable to provide informed consent

  * Patients who require revision hip arthroplasty
  * Patients who have had a previous osteotomy or osteosynthesis of the femur or acetabulum
  * Patients with metabolic bone disease, other than osteoporosis
  * Patients with inflammatory arthritis
  * Obese patients where obesity is severe enough to affect the patient's ability to perform activities of daily living (BMI \> 40)
  * Patients with active or suspected infection
  * Patients with malignancy
  * Patients unable to cooperate caused by language or psychosocial conditions

Where this trial is running

Kristiansund, Møre and Romsdal

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Hip Osteoarthritis, Total Hip Arthroplasty,Total Hip ReplacementCT-RSACTMAMigration study
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.