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

Ewha Womans University

Status and phase: Completed; Phase 4

Conditions: Osteoarthritis

Treatments: Device: Total knee replacement with NexGen CR knee prosthesis; Device: Total knee replacement(TKR) with Nexgen CR-flex

Study type: Interventional

Funder types: Other

Identifiers

NCT00837447

2007-7

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 54 patients

Sex: All

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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54 participants in 2 patient groups

NexGen CR knee prosthesis

Active Comparator group

Description:

side of knee operated with total knee replacement with Nexgen CR prosthesis

Treatment:

Device: Total knee replacement with NexGen CR knee prosthesis

NexGen CR-Flex knee prosthesis

Active Comparator group

Description:

side of knee operated with total knee arthroplasty using Nexgen CR-flex prosthesis

Treatment:

Device: Total knee replacement(TKR) with Nexgen CR-flex