Fluoroscopic Analysis of PFC CR 150 Versus Standard PFC CR Total Knee Arthroplasty Implants in Deep Flexion

Singapore General Hospital12 enrolled

Overview

The investigators are comparing the range of movements the knees of patients who had total knee replacement surgery for knee osteoarthritis. In the study arm, the implant used was a Sigma Cruciate Retaining (CR) Press Fit Condylar (PFC) 150, which is a high flexion knee system designed to combine function with wear resistance. It can accommodate up to 150 degrees of knee flexion. In the cohort arm, the implant used was the standard Sigma CR which can accommodate up to 120 degrees of flexion.

Both sets of patients will undergo routine post-operative follow up in clinic. The study involves patients who had their surgery more than 2 years ago. We assess their range of movement using fluoroscopy. They are asked to perform lunges, squats and climbing up and down 3 steps. The fluoroscopic images are then analysed to assess their individual range of movements.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Knee Osteoarthritis

Eligibility

Sex: ALLMin age: 50 YearsMax age: 95 Years

Medical Language ↔ Plain English

Inclusion Criteria: * All patients who underwent total knee replacement surgery who received either the PFC CR 150 knee implants or the PFC CR standard knee implant * Surgery more than 2 years * Able to walk, climb stairs Exclusion Criteria: * Knee stiffness with less than 100 degrees of knee range of movement * Patients who required revision surgery * Patients who received an all polyethylene tibial insert * Patients who received rotating platform tibial tray

Locations (1)

Singapore General Hospital

Singapore, Singapore, Singapore

Outcomes

Primary Outcomes

Flexion-extension range of movement of operated knee

Fluoroscopic studies are done as patient perform lunges, squats and climb up and down stairs.

Time frame: 2 years after their total knee replacement surgery

Data from ClinicalTrials.gov

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