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Status unknownNCT05349461Updated Apr 27, 2022

Comparison of Post-operative Knee Range of Motion and Functions Between Intraoperative Complete and Incomplete Patellofemoral Articular Contacts in Patients Undergoing Total Knee Arthroplasty

An interventional study of Complete patellofemoral articular contact and Incomplete patellofemoral articular contact in Complete Contact and Incomplete Contact, sponsored by Navamindradhiraj University. Status unknown at 1 site in Thailand. Per ClinicalTrials.gov, last updated 2022-04-27.

Sponsored by Navamindradhiraj University · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Apr 2021), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 1 year after the study started (first participant enrolled Apr 2021, registered Apr 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Sex
All
01

Study summary

The purpose of this study is to compare clinical outcome in knee range of motion and functions between intraoperative complete and incomplete patellofemoral articular contacts

02

Conditions studied

  • Complete Contact
  • Incomplete Contact
03

In context

Lead sponsor

Navamindradhiraj University is the lead sponsor of 14 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Primary osteoarthritis of knee who were scheduled for a primary total knee arthroplasty
  • Age 50-80 year

Exclusion criteria

Exclusion Criteria:

  • Revision surgery
  • Bilateral total knee arthroplasty
  • History of patellar fracture
  • History of patellar chondromalacia
  • History of Patellar instability
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Active comparator
    Complete contact

    Procedure: Complete patellofemoral articular contact

  • Active comparator
    Incomplete contact

    Procedure: Incomplete patellofemoral articular contact

Interventions

  • ProcedureComplete patellofemoral articular contact

    The patellofemoral condition is in constant contact with the femoral trochlea when the knee is bent from 30 to 90 degrees during the No thumb test.

  • ProcedureIncomplete patellofemoral articular contact

    The patellofemoral condition is in no constant contact with the femoral trochlea when the knee is bent from 30 to 90 degrees during the No thumb test.

06

What researchers measure

Primary outcomes

  1. Knee range of motion (ROM)

    Goniometer measure range of motion (minimum 0, maximum 145)

    Time frame: Change from baseline Knee range of motion (ROM) at 3 months, 6 months, and 12 months after surgery

  2. Knee flexion

    Goniometer measure knee flexion (minimum 135, maximum 145)

    Time frame: Change from baseline knee flexion at 3 months, 6 months, and 12 months after surgery

  3. Knee extension

    Goniometer measure knee extension (minimum -10, maximum 0)

    Time frame: Change from baseline knee extension at 3 months, 6 months, and 12 months after surgery

Secondary outcomes

  1. Knee Society and Knee Society function score

    Knee Society and Knee Society function score (minimum 0, maximum 200)

    Time frame: Change from baseline Knee Society and Knee Society function score at 3 months, 6 months, and 12 months after surgery

  2. New patellar score

    New patellar score (minimum 0, maximum 30)

    Time frame: Change from baseline new patellar score at 3 months, 6 months, and 12 months after surgery

  3. Oxford knee score

    Oxford knee score (minimum 0, maximum 48)

    Time frame: Change from baseline Oxford knee score 3 months, 6 months, and 12 months after surgery

  4. Prevalence of anterior knee pain ,AKP

    Prevalence of anterior knee pain ,AKP (minimum 0, maximum 10)

    Time frame: Change from baseline Prevalence of anterior knee pain ,AKP 3 months, 6 months, and 12 months after surgery

07

Study locations

1 site
  • Navamindradhiraj University
    Dusit, Bangkok 10300, Thailand
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 27, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05349461
Lead sponsor
Navamindradhiraj University
Responsible party
Satit Thiengwittayaporn (Associate Professor, Navamindradhiraj University) — Principal investigator
First posted
Apr 27, 2022
Start date
Apr 20, 2021
Primary completion
Apr 2022 (estimated)
Completion
Dec 2022 (estimated)
Last update
Apr 27, 2022

Study contacts

Satit Thiengwittayaporn, M.D.
principal investigator · satitthh@hotmail.com

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2021. You cannot join it, but the record below documents what was studied.

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