Cemented vs. Cementless Partial Knee Replacement for Knee Arthroplasty

Recruiting in Palo Alto (17 mi)

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Academic

Waitlist Available

Sponsor: Anderson Orthopaedic Research Institute

No Placebo Group

Trial Summary

What is the purpose of this trial?

The primary study objective is to evaluate a cementless partial knee system that has a modular 3-D printed porous metal tibial component and a cemented partial knee system. The hypothesis is that at minimum 2-year follow-up, fixed bearing medial partial knee replacements using cementless and cemented fixation will demonstrate no differences in clinical outcome.

Research Team

Robert Hopper

Principal Investigator

Anderson Orthopaedic Research Institute

Eligibility Criteria

This trial is for people aged 18-85 who need a medial fixed bearing partial knee replacement and are suitable for both cemented and cementless fixation. It excludes non-English speakers, those with very weak bones, prior high tibial osteotomy with hardware, unsuitable bone quality or cuts during surgery, smokers, or if they need total knee arthroplasty due to advanced arthritis.

Inclusion Criteria

My bones are suitable for surgery with or without bone cement.

I have had a partial knee replacement with a fixed bearing.

I am between 18 and 85 years old.

Exclusion Criteria

Grossly porotic bone

Current smokers

Non-English speakers

See 3 more

Treatment Details

Interventions

Cementless fixation (Not Applicable)

Trial OverviewThe study compares two types of partial knee replacements: one using a new modular 3-D printed porous metal that doesn't use cement (cementless), and the other using traditional methods where the components are secured with cement (cemented). The goal is to see if there's any difference in clinical outcomes after at least two years.

Participant Groups

2Treatment groups

Experimental Treatment

Active Control

Group I: CementlessExperimental Treatment1 Intervention

Cementless fixation partial knee replacement

Group II: CementedActive Control1 Intervention

Cemented fixation partial knee replacement