Computer-Assisted Navigation Software Advancements Improve the Accuracy of Total Knee Arthroplasty

被引:21
作者
Molli, Ryan G. [1 ]
Anderson, Kevin C. [1 ]
Buehler, Knute C. [2 ]
Markel, David C. [1 ]
机构
[1] Providence Hosp & Med Ctr, Dept Orthopaed Surg, Southfield, MI 48075 USA
[2] Ctr Orthoped & Neurosurg Care & Res, Bend, OR USA
关键词
computer navigation; navigation; total knee arthroplasty; alignment; arthroplasty; ALIGNMENT SYSTEMS; AXIAL ALIGNMENT; INTRAMEDULLARY; EXTRAMEDULLARY; REPLACEMENT; MECHANISMS; ROTATION; SURGERY; FAILURE; GUIDES;
D O I
10.1016/j.arth.2010.01.002
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
The purpose of this study was to evaluate the effectiveness of software advancements in improving total knee component positioning and limb alignment when using computer-aided navigation. A single total joint fellowship-trained surgeon performed unilateral total knee arthroplasty on 315 patients using conventional techniques or with assistance from computer navigation software. Preoperative and postoperative x-ray measurements were taken and analyzed. Our previous work demonstrated a statistically significant improvement (P < .02) in limb alignment (+/- 3 degrees of biomechanical neutral) when using version 2.0 software (93%) when compared with conventional techniques (82%). Further improvement was demonstrated with the version 3.1 software (99%, P < .03). The tourniquet times were recorded for each group and showed a significant improvement with the 3.1 software (conventional = 74 minutes, 2.0 navigation = 90 minutes, and 3.1 navigation = 73 minutes). The Stryker 2.0 software (Stryker Orthopedics, Mahwah, NJ) tourniquet time was statistically significantly longer than either the conventional or the 3.1 group (P < .001). Outcomes-based studies will be required to see if these factors will lead to improved patient function and/or prolonged prosthetic survival rates.
引用
收藏
页码:432 / 438
页数:7
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