MRI Circle Measurement: An Accurate Method for Femoral Component Sizing in Oxford Unicompartmental Knee Arthroplasty

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20251030002

Enrollment

Registered

2025-10-30

Start date

2022-12-27

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Patient who diagnosed of osteoarthritis of medial compartment of knee Osteoarthritis, Oxford, Unicompartmental knee arthroplasty, Femoral component sizing

Interventions

This group estimate the size of femoral component of Oxford UKA using the MRI circle measurement. ,This group estimate the size of femoral component of Oxford UKA using the radiographic templating. ,T

Diagnostic,Diagnostic,Diagnostic,Diagnostic,Diagnostic

MRI circle measurement,Radiographic templating,Anthropometric estimation,Intraoperative sizing spoon,Cheng et al MRI method

Eligibility

Sex/Gender

All

Age

20 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1. Patients diagnosed with isolated anteromedial osteoarthritis of the knee 2. Underwent medial UKA using the Oxford Phase 3 prosthesis (Oxford Partial Knee, Biomet Orthopedics, Bridgend, UK)

Exclusion criteria

Exclusion criteria: 1. Absence of preoperative MRI and postoperative radiograph. 2. Previous knee surgery.

Design outcomes

Primary

Measure	Time frame
overhang of femoral component on postoperative lateral radiographs immediate postoperative radiographic measurement	—

Secondary

Measure	Time frame
reliability of measurement immediate postoperative Intraclass Correlation Coefficient (ICC)	—

Countries

Thailand

Contacts

Public ContactArthit Gromprasit

Buddhachinaraj hospital

eaktid@gmail.com055270300

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026