Summary: CNN algorithm through transfer learning shows high accuracy in detecting loosening of TKA implant through plain radiograph. These results can be expected to be utilized as an auxiliary tool in the decision making process in diagnosing loosening of TKA implant by orthopedic surgeons.

Introduction

Detecting loosening of total knee arthroplasty (TKA) implants is a challenging process, even for experienced clinicians, and may not always be available, potentially delaying diagnosis. The purpose of this study was to investigate whether the loosening of TKA implant could be detected on plain radiograph using deep convolution neural network (CNN).

Methods

An analysis was conducted on 100 patients who underwent revision TKA due to loosening at one institution from 2012 to 2020. 100 patients who underwent primary TKA without loosening were extracted through propensity score matching for age, gender, body mass index, and operation side. We implemented training acceleration in a pre-trained CNN model called VGG19 through a transfer learning method that gradually changes the freezing layer. Training and testing were conducted in a ratio of 8:2.

Results

In the first model that trained only the last layer of the classification layer, the accuracy in diagnosing loosening of TKA implant was 87.5% and the accuracy for no-loosening was 56.3%. However, as the trained learning layer was gradually increased to the feature learning part, the accuracy in diagnosing loosening increased to 100%, and the accuracy for the non-loosening increased to 95%.

Conclusion

CNN algorithm through transfer learning shows high accuracy in detecting loosening of TKA implant through plain radiograph. These results can be expected to be utilized as an auxiliary tool in the decision making process in diagnosing loosening of TKA implant by orthopedic surgeons.

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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
Large Reduction In Postoperative Posterior Tibial Slope Risks Anterior Collapse Of The Tibial Component In Fixed-Bearing Unicompartmental Knee Arthroplasty ePoster Presentation Kazuhisa Hatayama, MD, PhD, JAPAN Masanori Terauchi, MD, JAPAN Shingo Kurihara, MD, JAPAN Satoshi Nonaka, MD, JAPAN Hibiki Kakiage, MD, JAPAN
Short Term Outcome of Tibial Defect Reconstruction In Primary Total Knee Arthroplasty: A Retrospective Study ePoster Presentation Sanjib Kumar Behera, MS (Orth), DNB (Rehab), DPMR, INDIA Madhumita Pradhan, BDS, MPH, MHA , INDIA Vikram Choudhary, MD, UNITED STATES
Effect of Restricted Kinematic Alignment Total Knee Arthroplasty on Coronal Plane Alignment Of The Ankle Joint ePoster Presentation Bartosz Michał Maciąg, MD, POLAND Marcin Łapiński, MD, POLAND Tomasz Mrozek, MD, POLAND Adrian Góralczyk, MD, POLAND Maciej Swiercz, MD, POLAND Grzegorz Maciąg, POLAND Krystian Żarnovsky, POLAND Olga Adamska, POLAND Artur Stolarczyk, MD, PhD, POLAND
Phenotypic Differences In Coronal Alignment In Robot-Assisted Total Knee Arthroplasty Do Not Affect Patient-Reported Outcome Measurements In A Three-Dimensional Computed Tomography Analysis: A Single-Center Cohort Study ePoster Presentation Takao Kaneko, MD, PhD,, JAPAN Ayakane Yamamoto, MD, JAPAN Kazutaka Takada, MD, JAPAN Shu Yoshizawa, MD, JAPAN Hiroyasu Ikegami, MD, PhD, Prof., JAPAN
Differences In Pain, Sleep Status And Functional Recovery Between TKA And UKA ePoster Presentation Takeo Mammoto, MD, JAPAN
Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software ePoster Presentation Takayuki Koya, MD, PhD, JAPAN 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

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Detection Loosening of Total Knee Arthroplasty Implant from Plain Radiograph Using Machine Learning Algorithm

Detection Loosening of Total Knee Arthroplasty Implant from Plain Radiograph Using Machine Learning Algorithm

Introduction

Methods

Results

Conclusion

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Detection Loosening of Total Knee Arthroplasty Implant from Plain Radiograph Using Machine Learning Algorithm

Detection Loosening of Total Knee Arthroplasty Implant from Plain Radiograph Using Machine Learning Algorithm

Introduction

Methods

Results

Conclusion

More 2023 ISAKOS Congress Content