Fluoroscopy-based Robotic-assisted Total Hip Arthroplasty Resulted in Greater Improvements in Hip-specific Outcome Measures at One-year Compared to CT-based Robotic-assisted Technique

9 pages•Published: December 17, 2024

Christian Ong, Graham Buchan, Christian Hecht II, David Liu, Joshua Petterwood and Atul Kamath

Abstract

Introduction: Most of the literature on robotic-assisted total hip arthroplasty (THA) outcomes is derived from a single computerized tomography-based robotic (CT-RTHA) platform. The purpose of this study was to compare one-year patient reported outcome measures (PROMs) between a novel, fluoroscopy-based, robotic-assisted (FL-RTHA) system and a CT-RTHA system.

Materials and methods: A review of 85 consecutive FL-RTHA and 125 consecutive CT-RTHA was conducted. All cases were performed via a direct anterior approach by one of two surgeons, during the same time period, for a pre-operative diagnosis of osteoarthritis, avascular necrosis, or rheumatoid arthritis. Outcomes included one-year post-operative Veterans RAND-12 (VR-12) Physical (PCS)/Mental (MCS), Hip Disability and Osteoarthritis Outcome (HOOS) Pain/Physical Function (PS)/Joint Replacement (JR), and University of California Los Angeles (UCLA) Activity scores. The primary comparative endpoint was the magnitude of improvements between pre- and post-operative scores.

Results: Patients in the FL-RTHA cohort had lower pre-operative VR-12 PCS, HOOS Pain, HOOS-PS, HOOS-JR, and UCLA Activity scores compared to patients in the CT-RTHA cohort. Patients in the FL-RTHA cohort reported significantly greater improvements in HOOS-PS scores (-41.54 vs. -36.55; p=0.028) than patients in the CT-RTHA cohort. Both cohorts experienced similar rates of post-operative complications requiring reoperation/revision surgery (FL-RTHA 0% vs. CT-RTHA 3.20%; p=0.095).

Conclusions: Both robotic techniques produced similar excellent PROM scores at one-year post-operative. However, use of the novel, fluoroscopy-based robotic system resulted in greater improvements in HOOS-PS at one-year relative to the computerized tomography-based robotic technique.

Keyphrases: arthroplasty, hip, patient reported outcome measures, robotic assisted surgery

In: Joshua W Giles and Aziliz Guezou-Philippe (editors). Proceedings of The 24th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 7, pages 172-180.

Links:	https://easychair.org/publications/paper/9Cvh
	https://doi.org/10.29007/k4vl

BibTeX entry

@inproceedings{CAOS2024:Fluoroscopy_based_Robotic_assisted,
  author    = {Christian Ong and Graham Buchan and Christian Hecht II and David Liu and Joshua Petterwood and Atul Kamath},
  title     = {Fluoroscopy-based Robotic-assisted Total Hip Arthroplasty Resulted in Greater Improvements in Hip-specific Outcome Measures at One-year Compared to CT-based Robotic-assisted Technique},
  booktitle = {Proceedings of The 24th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Joshua W Giles and Aziliz Guezou-Philippe},
  series    = {EPiC Series in Health Sciences},
  volume    = {7},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {/publications/paper/9Cvh},
  doi       = {10.29007/k4vl},
  pages     = {172-180},
  year      = {2024}}

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