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Preliminary outcomes of kinematically aligned robot-assisted total knee arthroplasty with patient-specific cartilage thickness measurement

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Abstract

This study aimed to assess the preliminary outcomes of kinematically aligned robot-assisted total knee arthroplasty (TKA) with patient-specific cartilage thickness measurement. Patients who underwent kinematically aligned robot-assisted TKA were included in this study. Robot-assisted total knee arthroplasties were performed by NAVIO Surgical System (Smith & Nephew, Memphis, USA), an image-free handheld robotic system. The kinematic alignment technique was performed according to our intraoperative cartilage thickness measurement technique. Hip-knee-ankle angle (HKA), mechanical lateral distal femoral angle (mLDFA), mechanical medial proximal tibial angle (mMPTA), joint-line orientation angle (JLOA), and joint-line convergence angle (JLCA) were measured through standing full-length anteroposterior radiographs. Knee Injury and Osteoarthritis Outcome Score, Oxford score, VAS pain and satisfaction score, and Forgotten Joint Score were used to assess clinical outcomes. A total of 142 knees of 109 patients (92 females and 17 males) were evaluated in this study. There was a significant correction in HKA, JLCA, and mMPTA postoperatively (p ≤0.001, < 0.001, and 0.029, respectively). We observed no significant change in mLDFA and JLOA measurements. All clinical scores significantly increased at the latest follow-up. Our results demonstrated that kinematically aligned robot-assisted TKA with patient-specific cartilage thickness measurement demonstrated no significant change in mLDFA and JLOA, as expected; however, significantly corrected the deformity in HKA, mMPTA, and JLCA measurements.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author upon reasonable request.

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The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Department of Orthopaedics and Traumatology, Turan & Turan Health Group, Ulubatlı Hasan Bulvari 48/62, Osmangazi, 16220, Bursa, Turkey

    Kayhan Turan, Yalkin Camurcu, Murat Kezer, Yunus Uysal, Yusuf Onur Kizilay & Abdulaziz Temiz

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  1. Kayhan Turan
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  2. Yalkin Camurcu
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  3. Murat Kezer
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  4. Yunus Uysal
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  6. Abdulaziz Temiz
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by [MK], [YU], [YOK] and [AT]. The first draft of the manuscript was written by [KT] and [YC] and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Yalkin Camurcu.

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Competing interests

The authors declare no competing interests.

Conflict of interest

The authors have no relevant financial or non-financial interests to disclose.

Ethical approval

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Istanbul Atlas University (Date: 25.06.2021/No: E-22686390-050.01.04-4761).

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Informed consent was obtained from all individual participants included in the study.

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Turan, K., Camurcu, Y., Kezer, M. et al. Preliminary outcomes of kinematically aligned robot-assisted total knee arthroplasty with patient-specific cartilage thickness measurement. J Robotic Surg 17, 979–985 (2023). https://doi.org/10.1007/s11701-022-01503-9

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