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Τρίτη 20 Ιουλίου 2021

Blood Loss and Transfusion Risk in Robotic‐Assisted Knee Arthroplasty: A Retrospective Analysis

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Abstract:

Background

The purpose of this study was to compare total blood loss and the risk of receiving a blood transfusion in robotic-assisted total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA) against conventional jig-based techniques

Methods

Robotic TKA (n=50) and UKA (n=50) patients were matched to contemporary controls for TKA (n=50) and UKA (n=50) and retrospectively analysed

Results

Robotic TKA patients experienced 23.7% less blood loss compared to conventional TKA patients (911.0ml vs 1193.7ml, p<0.01), and were associated with an 83% relative risk reduction of receiving a transfusion (2% of patients vs 12%, p=0.02). Robotic UKA patients did not demonstrate less blood loss compared to corresponding controls (821.7ml vs 854.7ml, p=0.69). Both UKA groups received no transfusions

Conclusions

Robotic surgical systems in TKA reduces blood loss and lowers the risk of requiring a blood transfusion. In UKA, robotic-assisted arthroplasty did not reduce blood loss compared to conventional arthroplasty.

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