Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York.
J Arthroplasty. 2013 Oct;28(9):1575-9. doi: 10.1016/j.arth.2013.03.001. Epub 2013 Apr 5.
The purposes of this study were to describe a method for measuring tibiofemoral subluxation in UKA, and to report the mean amount of tibiofemoral subluxation seen both preoperatively and postoperatively in a cohort of patients undergoing UKA. Two hundred thirty-five patients who received a medial UKA, and 39 patients who received a lateral UKA, were reviewed. In the medial UKA cohort, the mechanical alignment was corrected from 7.7° ± 5.9° preoperatively, to 2.9° ± 2.5° postoperatively, while the tibiofemoral subluxation was corrected from 4.5 mm ± 3.0 mm preoperatively, to 2.3 mm ± 2.7 mm postoperatively. In the lateral UKA cohort, the mechanical alignment was corrected from -5.5° ± 3.8° to -1.6° ± 3.4°, while the tibiofemoral subluxation was corrected from 4.3 mm ± 2.7 mm to 2.8 mm ± 2.5mm. This study presents a novel method for measurement of tibiofemoral subluxation, the mean amount of tibiofemoral subluxation present preoperatively, and the amount of correction that can be expected during both medial and lateral unicondylar knee arthroplasty.
本研究的目的是描述一种 UKA 中测量胫骨股骨半脱位的方法，并报告一组接受 UKA 治疗的患者术前和术后胫骨股骨半脱位的平均量。回顾了 235 例接受内侧 UKA 和 39 例接受外侧 UKA 的患者。在内侧 UKA 队列中，机械对线从术前的 7.7°±5.9°校正至术后的 2.9°±2.5°，而胫骨股骨半脱位从术前的 4.5mm±3.0mm 校正至术后的 2.3mm±2.7mm。在外侧 UKA 队列中，机械对线从-5.5°±3.8°校正至-1.6°±3.4°，而胫骨股骨半脱位从术前的 4.3mm±2.7mm 校正至术后的 2.8mm±2.5mm。本研究提出了一种测量胫骨股骨半脱位的新方法，以及术前胫骨股骨半脱位的平均量和内侧和外侧单髁膝关节置换术期间可预期的矫正量。
