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Effect of Different Size of Patellar Resurfacing on Patellar Crepitus of the One-stage Bilateral Total Knee Arthroplasty.

NCT06811506 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 94

Last updated 2025-02-06

No results posted yet for this study

Summary

The goal of this study is to compare the incidence of patella crepitation using different size of patella component in bilateral simultaneously total knee arthroplasty with patella resurfacing. The main question is does size of patella component effect the incidence of patella crepitus? In the control group, anatomically sized patella components were used, whereas the intervention group received 3 mm smaller, reduced-size patella components. Participants were scheduled for follow up examination 2 weeks, 6 weeks, 6 months and 1 year for incidence of the patella crepitation and other outcomes.

Conditions

  • Osteoarthritis (OA) of the Knee
  • OA Knee

Interventions

PROCEDURE

Anatomical size patella component

After the patella was resurfaced, surgeon evaluated the symmetry through haptic feedback and assessed the thickness by measuring the distance from the anterior to posterior center of the patella. An inset, single pegged patella component was cemented after milling the patella. The patella was medialized as the patella bone would allow. Synovium laying on top of the femoral component with the knee in extension was routinely excised. Lateral facetectomy and restoration of native patella thickness were performed in all knees. In the control group, anatomically sized patella components were used.

PROCEDURE

Reduced size patella component

The same procedure of patella resurfacing as control group was done, then 3 mm reduced size patella component was used in the intervention group.

Sponsors & Collaborators

  • Thammasat University Hospital

    collaborator OTHER

  • Thammasat University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
50 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-07-17
Primary Completion
2023-07-10
Completion
2023-08-31

Countries

  • Thailand

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06811506 on ClinicalTrials.gov