An interventional study of THR with conventional technique and THR with Acetabular Cup Orientation Guides (ACOG) in Osteoarthritis, Hip, sponsored by Materialise. Terminated at 1 site in Belgium. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2017-03-28.
Sponsored by Materialise · Not applicable, Interventional, and Treatment
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Among 15 studies in Osteoarthritis, Hip with a site in Belgium — 2 open to participants now, 4 under way, none of them phase 3. Osteoarthritis, Hip · Belgium.
Among the 15 studies in Osteoarthritis, Hip with a site in Belgium, this one is the only one that started in 2014, is one of 5 with no phase, and was the 4th registered.
641 studies on the registry are indexed under Osteoarthritis, Hip; 120 are open to participants now.
Browse Osteoarthritis, Hip studies →2 of the 15 studies in Osteoarthritis, Hip with a site in Belgium are open now. Recruiting first, the newest first:
Imelda Hospital, Bonheiden · Sites in Belgium
Ages 55+
Zimmer Biomet · Sites in Belgium, United States, Italy and 1 more country
Ages 18–80
A study can be open while its sites in Belgium have not opened yet or have stopped. Only those recruiting at a site in Belgium →
Of the 87 Osteoarthritis, Hip studies recruiting now, 54 (62%) set no upper age limit and 7 (8%) stop at 75 or younger; 3 take children under 18; 6 take healthy volunteers.
This study: 18 Years and older · all sexes · no healthy volunteers.
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15 studies; the count open now beside each. This study's row is marked.
First in 2003; this study’s year is marked. 1 started in 2014.
By drug class, each counting the studies that test any of its medicines:
This study's enrollment of 7 is below the median of 90 across 457 interventional studies indexed under Osteoarthritis, Hip.
Median enrollment 358 across the 7 interventional studies, 200 across the 8 observational. Of the 9 that completed or were terminated, 2 (22%) have results posted.
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6 of 15 have an industry lead sponsor. The 10 most frequent:
Materialise is the lead sponsor of 5 studies on the registry; 2 are open to participants now.
Materialise has 1 study filed under Osteoarthritis, Hip — fewer than ten, so there is no comparison to draw.
1 of the studies in Osteoarthritis, Hip with a site in Belgium that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT03372278Zimmer BiometPMCF Study on the Safety and Performance of the Zimmer® Maxera™ Acetabular System in Total Hip Arthroplasty | 2027-01 |
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Among the 15 studies in Osteoarthritis, Hip with a site in Belgium, from their registry updates:
Nothing recorded among them since 2026-09-25.
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A prospective, interventional, monocentric, controlled and randomized study will compare a conventional surgical technique to a surgical technique with the assistance of the Acetabular Cup Orientation Guide (ACOG, Materialise) System during total hip replacement (THR).
Background: The Acetabular Cup Orientation Guide(ACOG) System from MATERIALISE NV was developed and is intended to be used as a surgical instrument to assist in the positioning of acetabular cup components intra-operatively using anatomical landmarks of the pelvis that are clearly identifiable on preoperative computed tomography (CT) imaging scans.
Use of ACOG is a relative new technique. ACOG, based on CT imaging data, fit directly into the patient's anatomy and enable primary total hip replacement . Data showing extra benefit of this technique compared to conventional THR technique are not widely available.
Aim: To determine the safety of this new surgical technique compared to conventional THR.
Methods: 30 participants will be randomized to 2 groups. One group will be operated for a THR with the conventional technique and the other group will be operated for a THR with the assistance of the ACOG System. CT imaging will be taken pre and post operatively to measure cup orientation.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Use of conventional technique in THR
Procedure: THR with conventional technique
THR with Acetabular Cup Orientation Guides (ACOG)
Procedure: THR with Acetabular Cup Orientation Guides (ACOG)
THR with conventional technique.
THR with the ACOG System.
Also known as: ACOG, Materialise
Acetabular cup positioning
Full leg computed tomography pre-operatively and post-operatively. Cup positioning will be recorded in both groups.
Time frame: 2 Months post-operatively
Surgery time
Time frame: 1 day
Acetabular cup size
Time frame: 2 months
Ran from Jun 2014 to primary completion in Oct 2016, 28 months.
How these figures are worked out, and which studies are left out of them.
This study is terminated, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.
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