Understanding the human knee and its relationship to total knee replacement.

Acta Biomed · 2017 · PMC6178997 · PMID 28657560

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an increasing trendno p-value reported

Nowadays almost two-thirds of total knee implants that are used preserves PCL, although there is an increasing trend towards the PCL substitution.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.