Comparison of Tourniquet and Non-Tourniquet Use in Total Knee Arthroplasty: Impact on Postoperative Hemoglobin Changes and Surgical Time

Year 2025, Volume: 7 Issue: 1, 43 - 49

Cumhur Deniz Davulcu , Muhammed Yusuf Afacan

https://doi.org/10.37990/medr.1554458

Abstract

Aim: This study aimed to evaluate the impact of pneumatic tourniquet use on postoperative hemoglobin (Hb) and hematocrit (Hct) levels, changes in Hb/Hct, and surgery duration in total knee arthroplasty (TKA) by comparing outcomes between patients who underwent the procedure with and without tourniquet application.
Material and Method: A retrospective cohort study was conducted on 130 patients with Kellgren-Lawrence grade 3-4 gonarthrosis who underwent TKA. Patients were divided into two groups, each with 65 patients, based on tourniquet use. Preoperative and postoperative day 1 Hb/Hct values, ΔHb/ΔHct, and surgery duration were compared. Patients with comorbidities and significant perioperative complications were excluded.
Results: No significant differences were found between the tourniquet and non-tourniquet groups for preoperative or postoperative Hb and Hct levels (p>0.05). Both groups experienced significant reductions in hemoglobin and hematocrit levels postoperatively. The non-tourniquet group had a slightly greater decrease in hemoglobin and hematocrit, although this difference was not statistically significant (p>0.05). The tourniquet group demonstrated a significantly shorter operation duration (p=0.004).
Conclusion: Tourniquet use in TKA reduces surgical time without significantly affecting blood loss. The comparable outcomes in both groups suggest that the use of a tourniquet may offer practical advantages, in terms of procedural efficiency in reducing surgical time, but its influence on postoperative Hb and Hct changes is minimal.

Keywords

Total knee arthroplasty, tourniquet use, hemoglobin change, hematocrit change, blood loss, surgical time

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