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

Range of Motion of Standard and High-Flexion Posterior Cruciate Retaining Total Knee Prostheses A Prospective, Randomized Study

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.

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