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A Journal on Orthopedics and Traumatology

Official Journal of the Piedmontese-Ligurian-Lombard Society of Orthopedics and Traumatology
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Minerva Ortopedica e Traumatologica 2012 December;63(6):455-63

language: Italian

Outcomes of 51 mobile bearing total knee prosthesis in a short-medium follow up

D’amelio A., Atzori F., Bersano A., Gastaldo M., Massè A.

Struttura Complessa Dipartimento, Universitario, Ortopedia e Traumatologia, AOU San Luigi Gonzaga, Orbassano, Torino, Italia


AIM:Despite the excellent results achieved in total knee arthroplasty (TKA) surgery, there still remain some open discussions as the choice between models with fixed or mobile bearing, the role of patellar resurfacing and the sacrifice or preservation of the posterior cruciate ligament. We reviewed the results obtained in patients who underwent a total knee replacement with a mobile bearing RP design, comparing these with those available in literature and obtaining additional data to explore in future studies.
METHODS: From 2008 to 2011 in our department 51 mobile bearing RP posterior stabilized TKA were implanted. The mean age of patients was 71-year-old. Clinical data were collected with the KSS. The radiological data were evaluated with The Knee Society TKA roentgenographic evaluation and scoring. The mean follow-up was 30 months.
RESULTS: The KSS has rose from 45 points registered before the operation to 87 points after the replacement. Preoperatively the range of motion was 10-110°, then increased to 1-122°. Radiologically there were no polyethylene wear, or other complications.
CONCLUSION:According to the appropriate indications, with a careful surgical technique, especially with the correct final balancing of the soft tissues, the results obtained in our series of patients have been encouraging. For the future the idea of the fixed plate is to not completely given up, but it is necessary to chose between different models based on some personal, clinical and morphological characteristics of the patients.

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