Continued Stabilization of a Cementless 3D-Printed Total Knee Arthroplasty: Five-Year Results of a Randomized Controlled Trial Using Radiostereometric Analysis.

この研究はインパクトが大きい可能性があると判断されました。 OEのAIによる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、論文の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でき、読者は将来の診療を形成する可能性が最も高い論文に焦点を当てることができます。

研究概要

Seventy-two patients with knee osteoarthritis were randomized to receive a cementless 3D-printed cruciate-retaining tibial component (n=36) or a cemented cruciate-retaining tibial component (n=36). The primary outcome was maximum total point motion (MTPM) of the tibial component at 5 years. Secondary outcomes included progression of migration between 2 and 5 years, the proportion of continuously migrating implants, and patient-reported outcomes (KSS, KOOS, FJS). Follow-up assessments were performed at baseline, 3 months, 1, 2, and 5 years. Overall, the results revealed no significant difference in mean MTPM between cementless and cemented groups at 5 years. Progression of migration occurred in the cemented group beyond 2 years, whereas the cementless implants stabilized after early migration. Clinical outcomes were comparable between groups. These findings suggest that cementless 3D-printed tibial components achieve stable fixation after an initial settling phase, performing as well as cemented implants over 5 years.