Range of Motion of Standard and High-Flexion Posterior Cruciate Retaining Total Knee Prostheses

Ewha Womans University54 enrolled

Overview

The purpose of this prospective, randomized study was to compare pain, functional outcome and ranges of motion of the knees in patients receiving either a standard posterior cruciate-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis.

The main goals of total knee arthroplasty are pain relief and improvement of function and range of motion. The purpose of this study was to compare ranges of motion of the knees in patients receiving either a standard posterior crucaite-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Osteoarthritis

Interventions

Total knee replacement with NexGen CR knee prosthesisDEVICE

comparison of functional outcome in patients receiving either NexGen posterior cruciate-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis

Total knee replacement(TKR) with Nexgen CR-flexDEVICE

TKR using Nexgen CR-flex implant

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * osteoarthritis that was severe enough to warrant total knee arthroplasty after an adequate trial of nonoperative therapy, and the need for bilateral total knee arthroplasties Exclusion Criteria: * inflammatory arthritis * osteoarthritis of the hip causing pain or restricted mobility * a foot or ankle disorder which limited walking * dementia or a neurological disorder including a past history of stroke which affected mobility

Outcomes

Primary Outcomes

Change in Knee Society Knee Score

change in knee score will be compared with baseline and follow up of 3 years. The knee society knee score range from 0 to 100 points, 100 being the best possible outcome. Baseline-NexGen (CR) knee socre:29 points Baseline-NexGen (CR-Flex) knee socre:29 points Follow up of 3 years-NexGen (CR) knee socre: 93.7 points Follow up of 3 years-NexGen (CR-Flex) knee socre: 93.9 points

Time frame: baseline and 3 years

Data from ClinicalTrials.gov

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