Performance and Safety Evaluation of the FHK®-CK Knee Prosthesis

Not Applicable

Recruiting

• Conditions: Total Knee Arthroplasty
• Interventions: Device: Total Knee arthroplasty

• Registration Number: NCT06124482
• Lead Sponsor: FH ORTHO

Brief Summary

The life expectancy worldwide is increasing and leading to an increase of knee arthroplasty. Also, as millions of people around the world are currently living with a Total Knee Arthroplasty (TKA), the need for revision surgery represents a large public health burden. In this context, FH ORTHO company develops FHK®-CK (prosthesis + ancillary equipment) which is a knee prosthesis for complex first intention and revision knee arthroplasty. This new medical device complements the FHK® standard first-line range (CE marked).

The FHK®-CK ancillary equipment were designed by expert knee surgeons and is simple, reliable and reproducible. It allows for maximum versatility while remaining compact.

By completing the FHK® range of first intention prostheses, the FHK®-CK allows the surgeon to be on the same level as the competitors by having a first intention and semi-constrained prosthesis. This prosthetic arsenal allows the surgeon to opt for the best solution for his patient so that he can regain mobility and a satisfactory quality of life. Also, in case of failure of the FHK® first-line prosthesis, it will provide the surgeon and the patient with a simple alternative to prosthesis replacement. As it has been developed in line with the first intention, inter-compatibility between the two systems is possible, which simplifies the surgical procedure and reduces the risks for the patient.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2023-11-03
• Study First Submitted QC: 2023-11-08
• Study First Posted: 2023-11-09
• Status Verified: 2024-02
• Study Start: 2024-02-01
• Last Update Submitted: 2024-02-21
• Last Update Posted: 2024-02-22
• Primary Completion: 2028-02
• Study Completion: 2028-02

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 92

Inclusion Criteria

• Patient requiring knee arthroplasty for primary or secondary gonarthrosis:

  * For primary intention arthroplasty: Patient with either

  • major axial deviation,

  • major peripheral failure or

  • bone defect;

    * For prosthesis revision surgery: Patient who have had a failed 1st implantation, with or without bone defects.

• Patient able to understand and answer the questionnaires provided by the protocol;

• Subject affiliated to a health insurance system or is a beneficiary;

• Signed informed consent form (ICF) for participation to the research.

Exclusion Criteria

• Patient with an ongoing acute infection, outside knee to be operated;

• Patient with a mental or neuromuscular disorder that would create an unacceptable risk of prosthetic instability, prosthetic fixation failure or post-operative complications;

• Patient with a known allergy to any of the components of the FHK®-CK implants (Nickel, Cobalt, Chromium);

• Patient with a dependency (drug, alcohol,...) that could affect his/ her ability to comply with the protocol, at the investigator's discretion;

• Patient requiring knee reconstruction;

• Patient with any medically significant findings or significant history that may impact the safety, interpretation of results, and/ or participation of the subject in the clinical trial, as determined by the investigator;

• Patient with an existing knee or hip prosthesis (outside knee to be operated) that may impact the evaluation of the FHK®-CK prosthesis;

• Patient concurrently participating in another clinical trial or who has recently participated in another clinical trial for which the exclusion period has not been completed.

• Vulnerable subjects :

  • Pregnant, parturient, or breastfeeding women,
  • Subject deprived of liberty, hospitalized without consent or admitted to a health or social establishment for purposes other than that of research,
  • Minor,
  • Adult under protective supervision (tutorship, curatorship),
  • Subject not able to understand the subject information leaflet (e.g. for linguistic or psychiatric reasons) and/or to give informed consent

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Knee replacement	Total Knee arthroplasty	Implantation of FHK-CK prosthesis either for a complex primary arthroplasty or for revision intend

Primary Outcome Measures

Name	Time	Method
Functional performance	Baseline (preoperatively), at 6 weeks, 6 months, 12 months and 24 months after surgery.	Evolution of the functional performance of FHK®-CK prosthesis using the KSS scoring system, which is composed of 2 sections : Knee score (KSKS) and function score (KSFS). Each section is scored on a scale of 0 to 100 ; the higher the score, the better the overall functionality of the knee. The functional performance of the FHK®-CK prosthesis will be demonstrated at 2 years if an improvement of the KSKS and KSFS scores at least equal to the Minimal Clinically Important Difference (MCID) values is observed.

Secondary Outcome Measures

Name	Time	Method
Adverse and serious adverse events evaluation	Through study completion, an average of 2 years	Occurrence of adverse and serious adverse events, including complication
Revision rate evaluation	At 6 weeks, 6 months, 12 months and 24 months after surgery.	Revision rate
Evaluation of patient's tolerance of the FHK-CK prosthesis	At 6 weeks, 6 months, 12 months and 24 months after surgery.	Tolerance assessed by the surgeon with a 4-Likert scale (very bad - bad - good - very good)
Quality of life assessment	Baseline (preoperatively), at 6 months, 12 months and 24 months after surgery.	Self assessement of quality of life using the Oxford Knee score (OKS), especially developed for knee surgery. The OKS is derived from 12 questions assessed on a Likert scale with values from 0 to 4; a summative score is then calculated where 48 is the best possible score (least symptomatic) and 0 is the worst possible score (most symptomatic)
Device deficiencies evaluation	Through study completion, an average of 2 years	Number of device deficiencies and description of deficiencies.
Patient's satisfaction about FHK®-CK prosthesis	At 6 months, 12 months and 24 months after surgery	Satisfaction assessed by the patient with a 4-Likert scale ((very bad - bad - good - very good)
Surgeon's satisfaction about FHK®-CK equipment	During surgery	Satisfaction assessed by the surgeon for each surgery performed with FHK®-CK with a specific questionnaire developed including 9 questions with either a lickert scale or a yes/no response.

Trial Locations

Locations (5)

Hôpital Beaujon AP-HP; 🇫🇷 Clichy, France

Hôpital Privé La Châtaigneraie; 🇫🇷 Beaumont, France

Hôpital Raymond Poincaré AP-HP; 🇫🇷 Garches, France

Centre Hospitalier Régional Universitaire de Nancy; 🇫🇷 Nancy, France

Groupe Hospitalier Pitié Salpêtrière AP-HP; 🇫🇷 Paris, France