Effect of adductor canal block on pain in patients with severe pain after total knee arthroplasty: a randomized study with individual patient analysis

This report has been verified by one or more authors of the original publication.

この研究はハイインパクトの可能性があります。 OEのAI駆動型ハイインパクト指標は、論文が掲載されたジャーナルと論文自体の科学的内容の両方からのシグナルを統合することで、論文が持つ可能性の高い影響力を推定します。 最先端の自然言語処理を用いて開発されたOEハイインパクトモデルは、ジャーナルのインパクトファクターのみよりも、研究の将来の引用実績をより正確に予測します。 これにより、臨床的に意義のある研究をより早く認識することが可能になり、読者は将来の診療を形成する可能性が最も高い論文に集中することができます。

50 patients, between the ages of 30 and 85 years, who had just undergone unilateral TKA (post-op day 1 or 2) were randomly allocated to 1 of 2 groups to determine the effect an adductor canal block (ACB) had on postoperative pain. Patients in group 1 were administered an active ACB immediately after inclusion into the study, while those in group 2 were administered a placebo immediately after inclusion and an active ACB 45 minutes after. Primary follow up was conducted at 45 and 90 minutes. Following the first injection period (t45), patients who received an active ACB experienced significant improvements in VAS pain score during active flexion of the knee and rest when compared to those who had not yet received their active ACB block (group 2). After both groups received their ACB injections, results regarding VAS pain were comparable. Individual analysis revealed that 25% of patients experienced no block effect during active flexion. Block success rate for both groups was 98%.