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Comparison Between Two Total Knee Prosthesis Medacta GMK Sphere and Medacta GMK PS

Prospactive Randomized Monocentric Comparison Study Between Two Total Knee Prosthesis Medacta GMK Sphere and Medacta GMK PS

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03896451
Enrollment
0
Registered
2019-04-01
Start date
2019-02-02
Completion date
2031-03-31
Last updated
2020-09-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee Osteoarthritis

Brief summary

The purpose of the study is to compare the clinical outcome after two total knee endoprosthesis designs Medacta GMK Sphere and Medacta GMK PS. Primary outcome measures KOOS, Forgotten Knee Score and range of motion. Single-center, randomized trial

Detailed description

The clinical outcome measures were measured preoperativ and postoperativ (1 year, 5 year and 10 year). Secondary outcome measures: number of reoperations and revisions, survival of the prosthesis The patient population would consist patients with knee osteoarthritis eligible for total knee replacement The aim of the study is to evaluate the effect of the knee prosthesis design on the patient outcome

Interventions

DEVICETotal knee endoprothesis

Total knee endoprosthesis after knee joint osteoarthritis

Sponsors

Kantonsspital Winterthur KSW
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* patient is eligible for a total knee replacement * patient is eligible for a Medacta GMK Sphere or Medacta GMK PS knee prosthesis * patient signed the informed consent

Exclusion criteria

* patient is pregnant

Design outcomes

Primary

MeasureTime frameDescription
Change in Knee injury and Osteoarthritis Outcome Scorepreoperative, 1 year, 5 year and 10 year after surgeryKnee injury and Osteoarthritis Outcome Score: 100 = maximum score, 0 = minimum score
Change in Forgotten Joint Score1 year, 5 year and 10 year after surgeryForgotten Joint Score: 100 = maximum score, 0 = minimum score

Secondary

MeasureTime frameDescription
Change in revison1 year, 5 year and 10 year after surgeryRevision rate comparision with the baseline at 1 year
Change in range of motionpreoperative, 1 year, 5 year and 10 year after surgeryRange of motion

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026