ArticleSICOT-J2024
Blood loss in one-stage bilateral total knee arthroplasty: cruciate-retaining vs. posterior stabilized. A propensity score-matched analysis.
Article in SICOT-J, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionAlthough single-stage bilateral total knee arthroplasty (BTKA) presents several advantages, higher perioperative blood loss is a potentiate drawback that is still inevitable. Cruciate retaining (CR) TKA may theoretically result in less blood loss, offer better proprioception, and more physiologic kinematics compared to posterior stabilized (PS) TKA. The objective of this study was to compare perioperative blood loss and recovery among patients who underwent CR and PS BTKA.
methodsA cohort of 46 CR BTKA and 80 PS BTKA performed by a single surgeon were retrospectively evaluated. Identical surgical techniques and perioperative care were provided to all patients. Propensity score matching was utilized to compare blood loss, a visual analog scale (VAS) for postoperative pain level, morphine consumption, knee flexion arc, and length of stay (LOS).
resultsComparing CR BTKA and PS BTKA, drain output was 206.44 mL vs. 194.89 mL (p = 0.47), calculated blood loss was 886.23 mL vs. 724.89 mL (p = 0.05), and blood transfusion rate was 18% vs. 17% (p = 1.00). Additionally, CR BTKA had higher VAS than PS BTKA, at 6 h: 5.74 vs. 3.78 (p < 0.001), and at 12 h: 5.80 vs. 4.74 (p = 0.02). CR BTKA group had higher morphine consumption (26.87 mg vs. 19.74 mg; p = 0.01) in the first 48 h. CR BTKA showed significantly less knee flexion angle during 48-72 h postoperative.
conclusionsThe use of the CR prosthesis in BTKA could not demonstrate a superiority over the PS design in terms of blood loss, and recovery of knee function during the acute postoperative period.
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