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Active, Not Recruiting

NCT Number: NCT03274830

A Post Market Clinical Follow-up Study With the aneXys Cup

The purpose of the study is the evaluation of the clinical and radiological short- to long-term safety and performance of the aneXys cup. The data will be used for an ongoing evaluation of the product safety and performance.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Observational

Primary location

DRK Kliniken Berlin | Köpernick, Berlin, Germany

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About this study

Prospective observational multicenter case series providing short-term migration results and long-term post-market clinical data on the safety and performance of the aneXys cup. The study includes patients undergoing primary total hip arthroplasty. In total 100 patients in 3 clinics will be included. In each clinic 10-57 consecutive patients shall be included. In addition, to meet the regulatory requirements, a total of minimum 20 cases with screw fixation shall be included in the study.

Clinical and radiological follow-up (FU) is planned after 6-12 weeks, 6 months, 1, 2, 5, 7 and 10 years. An additional FU at 3 years is planned to apply for an ODEP (Orthopaedic Data Evaluation Panel) rating.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Informed consent form (signed by participant and investigator)
  • Primary implantation
  • Suffer from primary or secondary osteoarthritis of the hip, femoral head and neck fractures or necrosis of the femoral head. In all cases a stable anchoring of the implant has to be possible.
  • Age at inclusion: between 18 and 75 years old
  • Willing to participate in the follow-up examinations
  • Complete recovery is expected

Exclusion criteria

  • Missing informed consent form (signed by participant and investigator)
  • Known or suspected non-compliance (e.g. drug or alcohol abuse)
  • Enrolment of the investigator, his/her family, employees and other dependent persons
  • Patients younger 18 years old
  • Revision surgery
  • Presence of sepsis or malignant tumours
  • ASA (American Society of Anesthesiologists) Classification >3
  • Pregnancy

Treatment and study plan

aneXys

Device

150 patients with the aneXys cup

Primary outcomes

  1. Cup migration after 2 years

    Time frame: 2 years

    The primary endpoint will be the radiographic evaluation of the acetabular cup migration based on performed EBRA measurements 2 years after surgery.

Secondary outcomes

  1. Harris Hip Score

    Time frame: 10 years

    The secondary endpoint will be the determination of the clinical outcome using the Harris Hip Score.

  2. Visual analogue scale vor pain

    Time frame: 10 years

    The secondary endpoint will be the determination of the clinical outcome using the Visual analogue scale for pain.

  3. Visual analogue scale for satisfaction

    Time frame: 10 years

    The secondary endpoint will be the determination of the clinical outcome using the Visual analogue scale for satisfaction.

  4. The Western Ontario and McMaster Universities Osteoarthritis Index

    Time frame: 10 years

    The secondary endpoint will be the determination of the clinical outcome using the WOMAC.

Other outcomes

  1. Osteolysis

    Time frame: 6-12 weeks - 10 years

    The first endpoint of interest is the occurrence of osteolysis around the cup.

  2. Lucent lines

    Time frame: 6-12 weeks - 10 years

    The second endpoint of interest is the occurrence of lucent lines around the cup.

  3. Complications

    Time frame: post-op - 10 years

    The first safety endpoint will be the number of complications with respect to the investigational product.

  4. Revisions

    Time frame: post-op - 10 years

    The second safety endpoint will be the number revisions with respect to the investigational product.

Sponsors and collaborators

Lead sponsor

Mathys Ltd Bettlach

Industry

Registry information

Important dates

Study start
2020
Primary completion
2024
Study completion
2032
First posted
Sep 7, 2017
Registry last updated
Feb 6, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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