TITLE

Total Knee Arthroplasty with Use of Computer-Assisted Navigation Compared with Conventional Guiding Systems in the Same Patient: Radiographic Results in Asian Patients

AUTHOR(S)
Tsan-Wen Huang; Wei-Hsiu Hsu; Kuo-Ti Peng; Wen-Wei Hsu, Robert; Yi-Jan Weng; Wun-Jer Shen
PUB. DATE
July 2011
SOURCE
Journal of Bone & Joint Surgery, American Volume;7/6/2011, Vol. 93-A Issue 13, p1197
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background: The value of computer-assisted surgery in total knee arthroplasty for arthritic knees continues to be debated. We hypothesized that the usefulness of computer assistance is related to the magnitude of the deviation from the preoperative mechanical axis and that computer-assisted surgery may be beneficial under certain circumstances. Methods: Patients with bilateral knee osteoarthritis and genu varus deformity who were to have staged bilateral total knee arthroplasty were enrolled. The patients randomly underwent computer-assisted total knee arthroplasty in one knee and conventional total knee arthroplasty in the contralateral knee. The two methods were compared for accuracy of placement of the components and lower extremity alignment after total knee arthroplasty as determined by six radio- graphic parameters. Results: One hundred and thirteen patients (226 knees) met the inclusion criteria. For patients with a preoperative mechanical axis deviation of <10° and those with a deviation of 10° to 14.9° in both knees, the postoperative radiographic parameters did not differ significantly between the two techniques. In patients with a preoperative mechanical axis deviation of >20°, the reconstructed mechanical axes were significantly closer to normal in the computer-assisted total knee arthroplasty group. Significant results were also noted in the anatomical axes, femoral valgus angle, and femoral flexion angle. Furthermore, a higher percentage of knees in which computer-assisted surgery was used had restoration of the mechanical axis within 30 of neutral. Conclusions: Computer-assisted surgery was a valuable adjunct for obtaining proper alignment during total knee arthroplasty in patients with knee osteoarthritis with severe varus deformity. Conventional total knee arthroplasty was as effective as computer-assisted total knee arthroplasty for obtaining proper alignment in patients with a minor to moderate deformity. Level of Evidence: Therapeutic Level II. See Instructions to Authors for a complete description of levels of evidence.
ACCESSION #
63026919

 

Related Articles

  • Primary Total Knee Arthroplasty for Simple Distal Femoral Fractures in Elderly Patients with Knee Osteoarthritis. Nam-Yong Choi; Jong-Min Sohn; Sung-Gil Cho; Seung-Chan Kim; Yong In // Knee Surgery & Related Research;Sep2013, Vol. 25 Issue 3, p141 

    Purpose: Primary total knee arthroplasty (TKA) can be an alternative method for treating distal femoral fractures in elderly patients with knee osteoarthritis. The purpose of this study was to evaluate the clinical and radiographic results in patients with knee osteoarthritis who underwent TKA...

  • Knee Replacement Surgery: When Should You Consider It?  // Healthy Years;Dec2014, Vol. 11 Issue 12, p3 

    The article discusses knee replacement surgery and when it should be considered as a treatment option. Topics include a description of knee osteoarthritis (OA) as the usual indication for surgery, conservative treatments for OA such as non-steroidal anti-inflammatory drugs (NSAIDs), and the...

  • In vivo function of posterior cruciate ligament before and after posterior cruciate ligament-retaining total knee arthroplasty. Yue, Bing; Varadarajan, Kartik; Rubash, Harry; Li, Guoan // International Orthopaedics;Jul2012, Vol. 36 Issue 7, p1387 

    Purpose: The object of this study was to investigate the in vivo function of the posterior cruciate ligament (PCL) in patients before and after a PCL-retaining total knee arthroplasty (TKA). Methods: Eleven patients with advanced osteoarthritis (OA) of the knee were recruited. Magnetic resonance...

  • Quantitative index for deciding whether to administer preventive anticoagulant therapy in osteoarthritis patients undergoing total knee arthroplasty. Tsuji, Shigeyoshi; Kobayashi, Atsushi; Tomita, Tetsuya; Hamada, Masayuki; Sugamoto, Kazuomi; Yoshikawa, Hideki // Journal of Orthopaedic Science;Jan2014, Vol. 19 Issue 1, p77 

    Background: The 2008 American Academy of Orthopedic Surgeons recommended that surgeons assess the relative risks of venous thromboembolism and bleeding in patients undergoing total knee arthroplasty (TKA). In this situation, a quantitative index is required for deciding whether to administer...

  • Variability of gait in the early postoperative period of total knee arthroplasty with different surgical technique. Pethes, Ákos; Kiss, Rita; Szendrői, Miklós // International Orthopaedics;Mar2014, Vol. 38 Issue 3, p517 

    Purpose: The purpose of this study was to work out an objective and sensitive method for the early postoperative period following total knee arthroplasty (TKA) in which analysis of the gait parameters is possible and also to investigate the influence of different surgical approaches for TKA on...

  • Residual knee pain and functional outcome following total knee arthroplasty in osteoarthritic patients. Nashi, Nazrul; Hong, Choon; Krishna, Lingaraj // Knee Surgery, Sports Traumatology, Arthroscopy;Jun2015, Vol. 23 Issue 6, p1841 

    Purpose: Total knee arthroplasty (TKA) is a successful and safe elective operation in managing patients with severe osteoarthritis of the knee. However, the presence of residual knee pain (RKP) post-TKA can adversely affect patient satisfaction and functional outcome. Hence, the aim of this...

  • Clinical results of unicompartmental arthroplasty for knee osteoarthritis using a tibial component with screw fixation. Koshino, Tomihisa; Sato, Koji; Umemoto, Yusuke; Akamatsu, Yasushi; Kumagai, Ken; Saito, Tomoyuki // International Orthopaedics;Jun2015, Vol. 39 Issue 6, p1085 

    Purpose: Unicompartmental knee prostheses with screw fixation into the proximal tibia were employed and postoperative clinical results for osteoarthritis of the knee, especially regarding relief of pain, range of motion and satisfactory limb alignment are reported and discussed. Methods: A total...

  • Better results with patelloplasty compared to traditional total knee arthroplasty. Župan, Anja; Snoj, Žiga; Antolič, Vane; Pompe, Borut // International Orthopaedics;Aug2014, Vol. 38 Issue 8, p1621 

    Purpose: The aim of this study was to compare the results of primary total knee arthroplasty with or without patelloplasty. Methods: We retrospectively reviewed 89 patients who had received total knee arthroplasty. In patelloplasty, the patellar cartilage was resected using a tangential saw cut,...

  • Long-term survival and radiological results of the Duraconâ„¢ total knee arthroplasty. Bachmann, Matthias; Bolliger, Lilianna; Ilchmann, Thomas; Clauss, Martin // International Orthopaedics;Apr2014, Vol. 38 Issue 4, p747 

    Purpose: The aim of this study was to analyse the long-term (>ten years) survival rate and radiological results of the Duracon TKA. Methods: Between 1992 and 1999 159 Duracon TKA were implanted at our institution. A Kaplan-Meier survival analysis for the endpoints exchange, addition or removal...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics