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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT05980442
Other study ID # AAG-O-H-23032
Secondary ID
Status Not yet recruiting
Phase
First received
Last updated
Start date June 2024
Est. completion date December 2026

Study information

Verified date February 2024
Source Aesculap AG
Contact Kristin Maier, Dr.
Phone +49746195
Email info@aesculap.de
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Randomized, controlled, single center observational study to compare the safety and performance of navigation-assisted OrthoPilot Elite and robotic-assisted MAKO total knee arthroplasty (TKA). The aim of the study is the comparison of the clinical outcome between navigated and robotic-assisted TKA. The hypothesis of the study is that both treatments achieve similar results regarding functional and clinical aspects.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 140
Est. completion date December 2026
Est. primary completion date December 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 90 Years
Eligibility Inclusion Criteria: - Indication for a TKA with a fixed-bearing total knee endoprosthesis - Written informed consent for participating in the clinical study Exclusion Criteria: - Patient age <18 years and >90 years - Patient not willing to participate at the follow-up - Pregnancy - retropatellar arthrosis requiring patella resurfacing - American Society of Anaesthesiologists (ASA) Classification >3

Study Design


Intervention

Device:
Navigated total knee arthroplasty
Total knee arthroplasty with Columbus® total knee endoprosthesis using the OrthoPilot® Elite navigation system
Robot assisted total knee arthroplasty
Total knee arthroplasty with Triathlon® total knee endoprosthesis using the MAKO® robot system

Locations

Country Name City State
Germany Bundeswehr Krankenhaus Ulm Ulm Baden-Württemberg

Sponsors (1)

Lead Sponsor Collaborator
Aesculap AG

Country where clinical trial is conducted

Germany, 

Outcome

Type Measure Description Time frame Safety issue
Primary Functional outcome of the Knee Surgery measured by the Knee Society Score (KSS) (functional component) Functional result one year postoperatively measured with the functional component of the Knee Society Score (KSS). The KSS is an examiner-administrated standard clinical evaluation tool reporting results for patients undergoing TKA.
It separates findings in the operated knee (kKSS) score from findings related to the patient's function (fKSS), which might be affected by co-morbidities. The two sub-scores are reported separately ranging from 0 points (worst result) to 100 points (best results), as well as summarized score, total KSS. Final grading of total KSS results Scores of 160 to 200 will be rated as excellent, 140 to 159 as good, 120 to 139 as fair, and less than 120 as poor.
one year postoperatively
Secondary Survival of the implant components Kaplan-Meier Analysis is a standard statistical method to describe the survival of human subjects or medical products over a defined time period. The revision-free survival rate is the performance indicator of the product under investigation and confirms the clinical outcome of the knee prosthesis. Information on survival of the implant will be collected. one year postoperatively
Secondary Clinical outcome of the Knee Surgery measured by the Knee Society Score (KSS) (clinical component) Functional result one year postoperatively measured with the functional component of the Knee Society Score (KSS). The KSS is an examiner-administrated standard clinical evaluation tool reporting results for patients undergoing TKA.
It separates findings in the operated knee (kKSS) score from findings related to the patient's function (fKSS), which might be affected by co-morbidities. The two sub-scores are reported separately ranging from 0 points (worst result) to 100 points (best results), as well as summarized score, total KSS. Final grading of total KSS results Scores of 160 to 200 will be rated as excellent, 140 to 159 as good, 120 to 139 as fair, and less than 120 as poor.
one year postoperatively
Secondary Quality of Life [EQ-5D-5L] EQ-5D is a standardized 5-dimension (5D) 5-level (5L) measure of the health status and is developed by the EuroQol Group in order to have a simple and generic measure for clinical and economic assessment. Instructions for the user are directly included into the questionnaire and it consists of two pages. One cover five different dimensions (mobility, self care, usual activities, pain/discomfort, anxiety/depression) and the other one the EQ visual Analogue Scale (EQ-VAS). The VAS scale records the self rated health status of the patient from the level "the worst health you can imagine" to "the best health you can imagine". one year postoperatively
Secondary Anterior knee pain Anterior knee pain is used to evaluate the performance of the implantation and the implant itself. Rating is classified according to the description of Waters and Bentley in four dimensions: 0 (no pain), I (Mild pain that does not intrude on daily activities), II (Moderate pain that is a nuisance; patient not considering further surgery), III (Severe pain; Patient considering further surgery). The scoring is according to Feller et al. 0, 5, 10 and 15 points, respectively. one year postoperatively
Secondary Comparison of Radiographic alignment Alignment (femoral-knee baseline angle, tibial-knee baseline angle, femoral-tibial angle (mechanical)) one year postoperatively
Secondary Comparison of Radiographic status potential presence of radiolucency at the interface between implant and bone on femoral and tibial components will be analyzed one year postoperatively
Secondary (Serious) Adverse Events During the course of the study, any upcoming intra- or postoperative (serious) adverse device events or effects ((S)AE) related or not related to the product under investigation, will be documented. The total number of (S)AEs will be summarized and further evaluated by the sponsor and reported according to local legislation and necessity. Recorded complications will be categorized and analyzed in order to assess the safety of the investigational product. During the course of the study up to one year postoperatively
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