Evaluation of Navigation-Assisted TKA Using Mechanical vs. Restricted Kinematic Alignment

Knee Arthroplasty, Total Clinical Trial

Official title:

Evaluation of Navigation-Assisted TKA Using Mechanical vs. Restricted Kinematic Alignment on Patient Reported Outcome Measures (PROMs): A Prospective, Randomized Clinical Study

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05516381
• Other study ID #: TM-2021-1586
• Status: Recruiting
• Phase: N/A
• Start date: May 15, 2023
• Est. completion date: June 2026

Study information

• Verified date: May 2023
• Source: Exactech
• Contact: Alex Knisely, BSBA
• Phone: 352-474-9582
• Email: alex.knisely[@]exac.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to evaluate both clinical measures and PROMs in patients undergoing total knee arthroplasty (TKA) using restricted inverse kinematic alignment (iKA) compared to mechanical alignment (MA), both using surgical navigation assistance.

Description:

A prospective randomized clinical study will be conducted. The study will consist of two cohorts and will collect clinical data from a maximum of 148 knee arthroplasty surgeries during which the patient will receive the Optetrak Logic® CR TKA device. Cohorts will consist of 1) subjects undergoing MA TKA and 2) subjects undergoing restricted iKA TKA. All cohorts will utilize navigation-assisted surgery (ExactechGPS®) and will be enrolled and consented concurrently. Subjects will be randomized and have a 50% chance of being assigned to the MA TKA cohort and a 50% chance of being assigned to the restricted iKA TKA cohort. Study and research staff will be blinded to randomization and the cohort allocation until after consenting and eligibility is determined. Subjects will be blinded to the randomization (MA TKA or restricted iKA TKA) until the completion of the study. Data collection under this protocol shall be conducted in a way that conforms to any applicable local and national rules, regulations, and guidelines relating to the conduct of clinical research and the protection of human subjects. As appropriate, this may include but is not limited to the following: Good Clinical Practice (GCP) requirements, FDA regulations and guidelines, ISO 14155: 2020, ICH guidelines, HIPAA and other regulations pertaining to the protection of patient data and data privacy, guidelines established by local Institutional Review Boards or similar Ethics Committees, the Belmont Report, and the Declaration of Helsinki.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 148
• Est. completion date: June 2026
• Est. primary completion date: January 2026
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Subjects must meet all of the following inclusion criteria to be included in the

study:

1. Subject must be at least 18 years of age at the time of the surgery (skeletally mature)

2. Subject will receive a Optetrak Logic® CR device per the "Indications for Use" described above

3. Subject must be willing to comply with the pre-operative and post-operative visit requirements

4. Subject must be willing and able to provide written informed consent for participation in the study

Exclusion Criteria:

• Subjects will be excluded from the study if they meet any of the following exclusion

criteria:

1. Subject with a suspected or confirmed systemic infection and/or a secondary remote infection

2. Subject without sufficient bone stock to allow appropriate insertion and fixation of the prosthesis

3. Subject without sufficient soft tissue integrity to provide adequate stability

4. Subject with either mental or neuromuscular disorders that do not allow control of the knee joint

5. Subjects whose weight, age, or activity level might cause extreme loads and early failure of the system

6. Subject is participating in another drug or device study other than knee replacement within the last three (3) months

7. Subject has behavioral and/or mental issues that may interfere with their ability to follow post-operative instructions

8. Subject is a prisoner

9. Subject is pregnant

10. Subject is undergoing radiation therapy where the targeted field involves the knee joint

11. Subjects with malignancy involving proximal tibia, distal femur, or knee joint

12. Subjects undergoing active administration of chemotherapy

Related Conditions & MeSH terms

• Knee Arthroplasty, Total

Intervention

Device:
• Optetrak Logic CR Knee System
The OPTETRAK® Comprehensive Knee System consists of the OPTETRAK® Total Knee System and the OPTETRAK Logic® Total Knee System. The OPTETRAK Comprehensive Knee System comprises both non-porous and porous knee prostheses for use in total-knee joint replacement procedures. (In the USA, the OPTETRAK Comprehensive Knee System is indicated for cemented use only, except for the OPTETRAK Logic PS and CR Porous Femoral Components, which are indicated for cemented or cementless use.) The system includes various sizes and types of modular femoral components, tibial components, patellar components, and accessories for use in primary and revision applications.

Locations

Country	Name	City	State
Spain	Fundacio Mutua de Terrassa per a la Docenia i Recera Biomedica i Social, F.P.C.	Barcelona

Sponsors (1)

Lead Sponsor	Collaborator
Exactech

Country where clinical trial is conducted

Spain, 

References & Publications (2)

Almaawi AM, Hutt JRB, Masse V, Lavigne M, Vendittoli PA. The Impact of Mechanical and Restricted Kinematic Alignment on Knee Anatomy in Total Knee Arthroplasty. J Arthroplasty. 2017 Jul;32(7):2133-2140. doi: 10.1016/j.arth.2017.02.028. Epub 2017 Feb 20. — View Citation

Winnock de Grave P, Luyckx T, Claeys K, Tampere T, Kellens J, Muller J, Gunst P. Higher satisfaction after total knee arthroplasty using restricted inverse kinematic alignment compared to adjusted mechanical alignment. Knee Surg Sports Traumatol Arthrosc. 2022 Feb;30(2):488-499. doi: 10.1007/s00167-020-06165-4. Epub 2020 Jul 31. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Knee Society Score (KSS)	Validated outcome score	3-month
Primary	Knee Society Score (KSS)	Validated outcome score	6-month
Primary	Knee Society Score (KSS)	Validated outcome score	12-month
Primary	Forgotten Joint Score (FJS)	Validated outcome score	3-month
Primary	Forgotten Joint Score (FJS)	Validated outcome score	6-month
Primary	Forgotten Joint Score (FJS)	Validated outcome score	12-month
Primary	Knee Injury and Osteoarthritis Outcome Score (KOOS)	Validated outcome score	3-month
Primary	Knee Injury and Osteoarthritis Outcome Score (KOOS)	Validated outcome score	6-month
Primary	Knee Injury and Osteoarthritis Outcome Score (KOOS)	Validated outcome score	12-month
Primary	Visual Analog Scale (VAS) - Pain	Visual scale from 1-10 (low score is better)	3-month
Primary	Visual Analog Scale (VAS) - Pain	Visual scale from 1-10 (low score is better)	6-month
Primary	Visual Analog Scale (VAS) - Pain	Visual scale from 1-10 (low score is better)	12-month
Primary	Visual Analog Scale (VAS) - Patient Satisfaction	Visual scale from 1-10 (high score is better)	3-month
Primary	Visual Analog Scale (VAS) - Patient Satisfaction	Visual scale from 1-10 (high score is better)	6-month
Primary	Visual Analog Scale (VAS) - Patient Satisfaction	Visual scale from 1-10 (high score is better)	12-month
Secondary	Knee Alignment	Characterization of knee in terms of ligament balancing will be assessed through constant-pressure full arc of motion measurement.	Intraoperative