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Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software

Takayuki Koya, MD, PhD
UNITED STATES

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Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software

Takayuki Koya, MD, PhD, UNITED STATES Atsushi Sato, MD, PhD, JAPAN Jun Oike, MD,PhD, JAPAN Masataka Ota, MD, JAPAN Kanako Izukashi, MD, JAPAN Takayuki Okumo, MD, PhD, JAPAN Saki Yagura, MD, JAPAN Naoki Okuma, MD, JAPAN Fumiyoshi Kawashima, MD, JAPAN Hiroshi Takagi, MD, PhD, JAPAN Koji Kanzaki, Prof., JAPAN

Department of Orthopaedic Surgery, Showa University Koto Toyosu Hospital, Tokyo, JAPAN

2023 Congress ePoster Presentation 2023 Congress Not yet rated

Anatomic Location

Knee

Diagnosis / Condition

Osteoarthritis

Treatment / Technique

Total Joint Replacement

Patient Populations

Elderly

Diagnosis Method

CT-Scan

Summary: CT-based 3D pre-operative planning software(ZedKnee; LEXI) could help place TKA components more accurately

Background

Accurate component placement and good ligament balance are essential in total knee arthroplasty (TKA). The conventional mainstream technique of preoperative templating and postoperative evaluation in TKA were mainly performed based on two-dimensional X-ray images. However, three-dimensional templating and evaluation using CT or MRI data have recently become more common, which enables them to be more accurate. Hence, the purpose of this study was to evaluate the preoperative templating and postoperative accuracy of the component alignment and sizing in TKA using CT-based 3D pre-operative planning software (ZedKnee; LEXI, Tokyo, Japan)

Methods

We retrospectively included 150 patients, 219 knees (115 females, 35 males; 75.1±7.5 years old on average), who underwent primary TKA using Posterior Stabilized Fixed Bearing of ATTUNE (Depuy Synthes, Warsaw, IN, USA) at our institute in July 2015 to December 2020. We imported preoperative and three-day postoperative DICOM data of whole-leg CT from the hip joints to the ankle joints into ZedKnee software for preoperative templating and postoperative evaluation, respectively, and assessed pre and postoperative component size matching rate and component alignment accuracy.

Results

The femoral and tibial component size concordance rate was 71.7% (157/219) and 66.8% (144/219), respectively. Postoperative femoral and tibial components were placed at 2.2±2.2° varus against the 3D mechanical axis, 0.4±2.8° extended, and 3.9±2.2° externally rotated against the posterior condylar axis (PCA), and 0.8±1.9° varus, 4.3±2.2° tilted posteriorly, and 7.0±7.1° internally rotated, respectively.

Conclusion

According to our postoperative evaluation, using 3D planning software in the preoperative planning of TKA could help result in good component placement. However, there was a tendency for the femoral component to be placed with a slight varus and the tibial component to be internally rotated, which showed greater variability compared to the previous studies. Therefore, the results indicate that further improvement and refinement of intraoperative techniques are needed to reflect preoperative planning more accurately.

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Same Complication Rate After Day-Case Procedure Or Fast-Track Procedure After Total Hip And Knee Arthroplasty. A Prospective, Propensity Score-Matched Case-Control Study ePoster Presentation Jean-Yves Jenny, Prof., FRANCE Vincent Gisonni, MD, FRANCE
Evaluation of The Safety And Efficacy of The Fully Automated Active Robotic System In Robotic Assisted Total Knee Arthroplasty ePoster Presentation Sanjay B. Londhe, MS, FRCS, FRCSI, MCh, INDIA Santosh Chandrashekar Shetty, MS, INDIA Ashit Hasmukhbhai Shah, FRCS Orth, M ChOrth, M S Orth, D N B Orth, INDIA Niraj Vora, MS,MRCS, INDIA Vijay Shetty, MD, MSc, FRCSC, INDIA Rakesh Nair, MS, INDIA Clevio Joao Baptista Desouza, MS , INDIA Farheen Khan, B.Tech, INDIA
How to Measure Physical Function in Clinical Trials on Patients Undergoing Total or Partial Knee Arthroplasty? A Systematic Review ePoster Presentation Marco Adriani, MD, ITALY Roland Becker, MD, PhD, Prof., GERMANY Aleksandra Krolikowska, PhD, Prof., POLAND Krzysztof Lachowski, MD, GERMANY Robert Prill, PhD, GERMANY
Unicompartmental Knee Replacement and Femoropatellar Arthritis. 110 Ahroplasties with a Mean Follow p of 6 years. ePoster Presentation Stefano Gaggiotti, MD, ARGENTINA Santino Gaggiotti, MD, ARGENTINA Julio Cesar Ringa Gabriel Gaggiotti, MD, ARGENTINA
Incidence and Prevention of Deep Vein Thrombosis Using Thromboprophylaxis in Total Knee Replacement: A Prospective Clinical Study ePoster Presentation Amit Lakhani, MS, DNB, MRCPS(Glassg), MNAS, INDIA
Effect of Altered Knee Joint Loading Pattern in Gait Biomechanics of Total Knee Arthroplasty Patient ePoster Presentation Sang Jin Lee, MD, PhD, KOREA, REPUBLIC OF
Participation of Physical Activity Following Knee Arthroplasty: A Meta-Analysis ePoster Presentation Ahmed A Magan, BM BSc (Hons) MRCS (Eng) FRCS (Eng) Trauma & Orth, UNITED KINGDOM Babar Kayani, BSc (HONS), MBBS, MRCS (Eng), UNITED KINGDOM Warran Wignadasan, MBBS, BSc (Hons), MRCS, UNITED KINGDOM Dia Eldean Giebaly, MBChB, MSc, FRCS, EMBA, UNITED KINGDOM Flaminia Ronca, PHD, UNITED KINGDOM Fares S. Haddad, MCh(Orth), BSc, FRCS(Orth), UNITED KINGDOM
The Statistical Fragility of Tourniquet Use In Total Knee Arthroplasty: A Systematic Review ePoster Presentation Kyle William Lawrence, BS, UNITED STATES John K Cordero, MD, UNITED STATES Ashley Brown, BS, UNITED STATES Xinning Li, MD, UNITED STATES Brett Hayden, MD, UNITED STATES Robert L Parisien, MD, UNITED STATES
Efficacy of Functional Alignment Technique In Robotic-Arm Assisted Total Knee Arthroplasty ePoster Presentation Masashi Tamaki, MD, PhD, JAPAN Yuki Yamauchi, MD,PhD, JAPAN Seishiro Higa, MD, JAPAN Tomoyuki Shimakawa, MD, JAPAN Yuki Isobe, MD, JAPAN Teruya Ishibashi, MD,PhD, JAPAN Shoji Konda, PhD, JAPAN Tetsuya Tomita, M.D.,Ph.D , JAPAN
"The Other Partial Knee"- Milling System Technique for Patellofemoral Arthroplasty in 250 Patients ePoster Presentation Alexander P. Sah, MD, UNITED STATES
Use of Tibial Stem for Patients with Morbid Obesity in Total Knee Arthroplasty ePoster Presentation José Eduardo Flores Naranjo, MD, MEXICO Adrian Aziz Cortes De La Fuente, MD, MEXICO Octavio Martinez Montiel, MD, MEXICO Fernando Martinez Zuñiga, MD, MEXICO
Intra- And Inter-Operator Reliability Assessment Of A Novel Extramedullary Accelerometer-Based Smart Cutting-Guide For Total Knee Arthroplasty: An In-Vivo Study ePoster Presentation Stefano Zaffagnini, MD, Prof., ITALY Domenico Alesi, MD, ITALY Arcangelo Russo, MD, ITALY Mirco Lo Presti, MD, ITALY Iacopo Sassoli, MD, ITALY Matteo La Verde, MD, ITALY Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY

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Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software

Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software

Background

Methods

Results

Conclusion

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Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software

Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software

Background

Methods

Results

Conclusion

More 2023 ISAKOS Congress Content