Comparison Between the Onlay and Inlay Techniques for Patellar Resurfacing in Posterior Cruciate Ligament-Substituting Total Knee Arthroplasty

Not Applicable

Completed

• Conditions: Onlay Patellar Resurfacing Technique; Inlay Patellar Resurfacing Technique; Patellar Resurfacing
• Interventions: Procedure: Total knee with inlay patellar resurfacing technique; Procedure: Total knee with onlay patellar resurfacing technique

• Registration Number: NCT03650426
• Lead Sponsor: Navamindradhiraj University

Brief Summary

The purpose of this study is to compare clinical outcome in posterior cruciate ligament-substituting total knee arthroplasty with onlay patellar resurfacing technique and inlay patellar resurfacing technique

Detailed Description

Not available

Study Timeline

• Study Start: 2018-02-20
• Status Verified: 2018-07
• Study First Submitted: 2018-08-27
• Study First Submitted QC: 2018-08-27
• Study First Posted: 2018-08-28
• Primary Completion: 2020-02-20
• Study Completion: 2020-02-20
• Last Update Submitted: 2021-04-18
• Last Update Posted: 2021-04-20

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 235

Inclusion Criteria

• Primary osteoarthritis of knee who were scheduled for a primary total knee arthroplasty

Exclusion Criteria

• Valgus deformity
• History of inflammatory arthroplathy
• Previous fracture or open surgery on the same knee
• History of patellar instability

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Inlay patellar resurfacing technique	Total knee with inlay patellar resurfacing technique	-
Onlay patellar resurfacing technique	Total knee with onlay patellar resurfacing technique	-

Primary Outcome Measures

Name	Time	Method
range of motion of knee	Change from baseline Knee Society and Knee Society function score at 3 months, 6 months, and 12 months after surgery	Knee Society and Knee Society function score (minimum 0, maximum 200)
Knee Society and Knee Society function score	Change from baseline Knee Society and Knee Society function score at 3 months, 6 months, and 12 months after surgery	Knee Society and Knee Society function score (minimum 0, maximum 200)
New patellar score	Change from baseline new patellar score at 3 months, 6 months, and 12 months after surgery	New patellar score (minimum 0, maximum 30)
Prevalence of patellar crepitus complication	Change from baseline patellar crepitus complication 3 months, 6 months, and 12 months after surgery	Prevalence of patellar crepitus complication (present, absent)
Change of post-operative anterior knee pain	Change from baseline Visual Analog Scale for anterior knee pain at 3 months, 6 months, and 12 months after surgery	Visual Analog Scale for anterior knee pain (minimum 0, maximum 10) Do higher values represent a worse outcome
Oxford knee score	Change from baseline Oxford knee score 3 months, 6 months, and 12 months after surgery	Oxford knee score (minimum 0, maximum 48)
Prevalence of anterior knee pain ,AKP	Change from baseline Prevalence of anterior knee pain ,AKP 3 months, 6 months, and 12 months after surgery	Prevalence of anterior knee pain ,AKP (minimum 0, maximum 10)

Trial Locations

Locations (1)

Navamindradhiraj University; 🇹🇭 Dusit, Bangkok,, Thailand