Randomized Controlled Trial of Radiographic and Patient-Assessed Outcomes Following Fixed Versus Rotating Platform Total Knee Arthroplasty

Abstract This prospectively blinded randomized controlled study evaluated the difference in the functional and radiological outcomes in patients who received a press-fit condylar Sigma cemented cruciate-substituting total knee arthroplasty with either a rotating platform (RP) or a fixed bearing (FB)...

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Bibliographic Details
Published in:The Journal of arthroplasty 2010-12, Vol.25 (8), p.1201-1208
Main Authors: Rahman, Wael A., MD, Garbuz, Donald S., MD, MHSc, FRCSC, Masri, Bassam A., MD, FRCSC
Format: Article
Language:English
Subjects:
Adult
Aged
Arthritis, Rheumatoid - surgery
Arthroplasty, Replacement, Knee - instrumentation
Female
fixed bearing
Follow-Up Studies
Humans
Knee Joint - diagnostic imaging
Knee Joint - physiology
Knee Joint - surgery
Knee Prosthesis
Male
Middle Aged
Orthopedics
Osteoarthritis, Knee - surgery
Patient Satisfaction
Prospective Studies
Prosthesis Design
Radiography
randomized clinical trial
Range of Motion, Articular - physiology
Recovery of Function - physiology
rotating platform
total knee arthroplasty
Treatment Outcome
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Summary:Abstract This prospectively blinded randomized controlled study evaluated the difference in the functional and radiological outcomes in patients who received a press-fit condylar Sigma cemented cruciate-substituting total knee arthroplasty with either a rotating platform (RP) or a fixed bearing (FB). There were 51 joints in 49 patients: 24 joints in the RP group (mean follow-up, 43 months) and 27 joints in the FB group (mean follow-up, 40 months). At baseline, there was no significant difference in age, body mass index, preoperative diagnosis, Charnley class, range of motion, clinical and functional scores, between the RP and FB groups. At mid-term follow up both the RP and FB give equivalent results, but patients with the RP tended to have a higher activity level score.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2009.10.002