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Contemporary analysis of the learning curve for robotic-assisted total hip arthroplasty emerging technologies

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Abstract

Robotic assisted (RA) total hip arthroplasty (THA) offers improved acetabular component placement and radiographic outcomes, but inconsistent assessment methods of its learning curves render the evaluation of adopting novel platforms challenging. Therefore, we conducted a systematic review to assess the learning curve associated with RA-THA, both tracking a surgeon's performance across initial cases and comparing their performance to manual THA (M-THA). PubMed, MEDLINE, EBSCOhost, and Google Scholar were searched on June 16, 2023, to identify studies published between January 1, 2000 and June 16, 2023 (PROSPERO registration: CRD42023437339). The query yielded 655 unique articles, which were screened for eligibility. The final analysis included 11 articles, evaluating 1351 THA procedures. Risk of bias was assessed via the Methodological Index for Nonrandomized Studies (MINORS) tool. The mean MINORS score was 21.3 ± 0.9. RA-THA provided immediate improvements in acetabular component placement accuracy and radiographic outcomes compared to M-THA, with little to no experience required to achieve peak proficiency. A modest learning curve (12–17 cases) was associated with operative time, which was elevated compared to M-THA (+ 9–13 min). RA-THA offers immediate advantages to M-THA for component placement accuracy and radiographic outcomes. Surgeons should expect to experience increased operative times, which become less pronounced or equivalent to M-THA after a modest caseload.

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Authors

Contributions

CJH, JRP, PAS were involved in conceptualization, methodology, formal analysis, visualization, writing original draft, and writing review and editing. YH, PKS, and AFK were involved in conceptualization, methodology, project administration, formal analysis, visualization, writing original draft, writing review and editing, and supervision.

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Correspondence to Atul F. Kamath.

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Conflict of interest

A.F.K. reports the following disclosures: paid presenter or speaker (Zimmer Biomet), paid consultant (Zimmer Biomet, BodyCad, Ortho Development, United Ortho), stock or stock options (Zimmer Biomet, Johnson & Johnson, and Procter & Gamble), IP royalties (Innomed), and board or committee member (AAOS, AAHKS, and Anterior Hip Foundation). P.K.S. reports the following disclosures: research support (Intelijoint Surgical), paid presenter of speaker (Intelijoint Surgical, DePuy, EOS Imaging), paid consultant (Intelijoint Surgical, Zimmer Biomet, DePuy, EOS Imaging, Lima Corporate), and stock or stock options (Intelijoint Surgical, Parvizi Surgical Innovation). CJH, JRP, PAS, and YH have no disclosures.

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Ethical approval was waived as our analysis does not contain human data. Registration: PROSPERO registration of the study protocol: CRD42023437339, 27 June 2023.

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Hecht, C.J., Porto, J.R., Sanghvi, P.A. et al. Contemporary analysis of the learning curve for robotic-assisted total hip arthroplasty emerging technologies. J Robotic Surg 18, 160 (2024). https://doi.org/10.1007/s11701-024-01928-4

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