Influence of Navigation System Updates on Total Knee Arthroplasty

Overview

Journal BMC Sports Sci Med Rehabil

Publisher Biomed Central

Specialty Orthopedics

Date 2013 May 4

PMID 23638774

Citations 7

Authors

Hiroshi Inui

Shuji Taketomi

Kensuke Nakamura

Seira Takei

Hideki Takeda

Sakae Tanaka

Takumi Nakagawa

Affiliations

Soon will be listed here.

Abstract

Background: The purpose of this study was to evaluate the influence of image-free computer-assisted navigation system update on outcome in total knee arthroplasty.

Methods: Thirty-three knees were replaced using the Stryker 3.1 image-free navigation system and 49 knees were replaced using the Stryker 4.0 system. One surgeon took part in all procedures as chief surgeon or first assistant. All patients received the Stryker Scopio NRG CR total knee prosthesis. We compared the accuracy of component positioning measured using radiographs and CT scans, operating time and clinical outcome 1 year after surgery.

Results: The mean hip-knee-ankle, frontal femoral and tibial component angle were 179.8° (ideally implanted 85%), 89.8° (88%), 90.4° (88%) respectively for the 3.1 group and 179.5° (96%), 90.6° (92%), 90.2° (94%) for the 4.0 group. The mean sagittal tibial component angle was 85.5° (82%) for the 3.1 group and 85.6° (92%) for the 4.0 group. The mean rotational femoral and tibial component angle were -0.5° (81%), -0.7° (73%) for the 3.1 group and 0.0° (84%), 0.4° (72%) for the 4.0 group. There were no statistically significant findings with regard to component positioning. Operating time was significantly longer in the 3.1 group (3.1 group: 137 min, 4.1group: 125 min, P < 0.01). No significant difference was detected in postoperative clinical outcome.

Conclusion: The navigation system update from Stryker 3.1 to Stryker 4.0 reduced operating time by 12 min. However, there were no statistically significant findings with regard to component positioning and clinical outcome.

Citing Articles

Both intraoperative medial and lateral soft tissue balances influence intraoperative rotational knee kinematics in bi-cruciate stabilized total knee arthroplasty: A retrospective investigation.

Takagi K, Inui H, Taketomi S, Yamagami R, Kono K, Kawaguchi K BMC Musculoskelet Disord. 2021; 22(1):830.

PMID: 34579677 PMC: 8477560. DOI: 10.1186/s12891-021-04709-4.

Intraoperative rotational kinematics and its influence on postoperative clinical outcomes differ according to age in Unicompartmental knee Arthroplasty.

Kawaguchi K, Inui H, Taketomi S, Yamagami R, Kono K, Sameshima S BMC Musculoskelet Disord. 2021; 22(1):505.

PMID: 34074280 PMC: 8167984. DOI: 10.1186/s12891-021-04371-w.

Influence of surgical factors on patient satisfaction after bi-cruciate stabilized total knee arthroplasty: retrospective examination using multiple regression analysis.

Inui H, Taketomi S, Yamagami R, Kono K, Kawaguchi K, Uehara K BMC Musculoskelet Disord. 2021; 22(1):215.

PMID: 33622292 PMC: 7903778. DOI: 10.1186/s12891-021-04098-8.

Intraoperative mobile-bearing movement in Oxford unicompartmental knee arthroplasty.

Kawaguchi K, Inui H, Taketomi S, Yamagami R, Nakazato K, Shirakawa N Knee Surg Sports Traumatol Arthrosc. 2018; 27(7):2211-2217.

PMID: 30030580 DOI: 10.1007/s00167-018-5064-6.

A randomized controlled trial to compare component placement in navigated total knee arthroplasty using original and streamlined registration processes.

Sciberras N, Almustafa M, Smith B, Allen D, Picard F, Deakin A Arthroplast Today. 2017; 3(2):111-117.

PMID: 28695183 PMC: 5484974. DOI: 10.1016/j.artd.2016.07.002.

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