Comparison of Radiographic Alignment of Image less Computer-Assisted Surgery vs Conventional Instrumentation in Primary Total Knee Arthroplasty

被引:75
作者
Barrett, William P. [1 ]
Mason, J. Bohannon [2 ]
Moskal, Joseph T. [3 ]
Dalury, David F. [4 ]
Oliashirazi, Ali [5 ]
Fisher, David A. [6 ]
机构
[1] Valley Orthoped Associates, Seattle, WA USA
[2] OrthoCarolina, Charlotte, NC USA
[3] Virginia Tech Caril Sch Med, Carillon Clin Orthopaed, Roanoke, VA USA
[4] Towson Orthopaed Associates, Towson Orthopaed, Baltimore, MD USA
[5] Marshall Univ, Sch Med, Dept Orthopaed, Huntington, WV USA
[6] Ortholndy Total Joint Replacement, Indianapolis, IN USA
关键词
imageless computer-assisted surgery; conventional instrumentation; total knee arthroplasty; NAVIGATION; REPLACEMENT; COMPONENTS; IMPROVE; IMPLANTATION; MULTICENTER; ORIENTATION; EXPERIENCE;
D O I
10.1016/j.arth.2011.04.037
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
100224 [整形外科学];
摘要
A total of 208 patients were enrolled in a multicenter, prospective randomized, institutional review board approved study that compared preoperative surgical plan to postoperative 2-dimensional radiographic alignment measured by a blinded reviewer for primary total knee arthroplasty (TKA) implanted using computer-assisted surgery (CAS) compared with conventional TKA instrumentation. The results demonstrated a statistically significant improvement in the coronal tibial component alignment (P < .03) and failed to demonstrate a statistically significant improvement in the mechanical axis, femoral coronal/sagittal, and tibial sagittal alignment. Knee Society Score knee and function scores and 6-minute walk test were equivalent between the 2 treatment groups at all postoperative intervals. There was a statistically significant increase in the skin-skin time (P < .0001) and the time until first bone cut (P < .0001) for the CAS knees compared with those implanted with conventional instrumentation. The use of CAS in this randomized clinical trial conducted at high-volume centers did not offer a clinically meaningful improvement in postoperative alignment, clinical, functional, or safety outcomes compared with conventional TKA.
引用
收藏
页码:1273 / 1284
页数:12
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