J Orthop Surg Res
Excellence Center for Hip & Knee Arthroplasty, Department of Orthopedic Surgery, Zuyderland Medical Center, Heerlen, The Netherlands.
Published: January 2025
Introduction: In 2020, 368 million people globally were affected by knee osteoarthritis, and prevalence is projected to increase with 74% by 2050. Relatively high rates of dissatisfactory results after total knee arthroplasty (TKA), as reported by approximately 20% of patients, may be caused by sub-optimal knee alignment and balancing. While mechanical alignment has traditionally been the goal, patient-specific alignment strategies are gaining interest. Robotic assistance could potentially facilitate implementation of these alignment strategies through data-based surgical planning, accurate execution of the surgical plan and validation. The clinical value of surgical assistance in diverging from mechanical alignment remains to be investigated. In the present study, robotic-assisted TKA will be performed to pursue inverse kinematic alignment (iKA) within predefined boundaries, focusing on restoring native tibia joint line.
Methods: This randomized controlled trial evaluates clinical effectiveness of robotic-assisted TKA (ROSA Knee System, Zimmer Biomet, Montreal, Quebec, Canada) aiming for iKA compared to conventional TKA aiming for mechanical alignment. A total of 150 participants will be randomized (1:1) to either treatment to provide an 80% power for a 4.8-point clinically important difference in the primary outcome measure, the Oxford Knee Score (OKS) 12 months after surgery. Allocation was achieved using computer-based randomization. Outcomes will be analyzed using linear mixed models with time and group as main factors and interaction-term. Secondary outcomes include clinical metrics (leg alignment, implant and patient survival), surgical parameters (adverse events, surgery duration, blood loss, hospital stay length, medication use), patient-reported outcomes (symptoms, quality of life, pain), mobility and physical activity measurements, metabolic syndrome, cost-efficacy, and gait and continuous glucose monitoring.
Ethics And Dissemination: This study has been approved by the Medical Ethical Committee Zuyd and Zuyderland Medical Centre (NL79161.096.21/METCZ20220006), September 2022.
Trial Registration Number: NCT05685693 (clinicaltrials.gov).
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http://dx.doi.org/10.1186/s13018-024-05427-y | DOI Listing |
J Orthop Surg Res
January 2025
Excellence Center for Hip & Knee Arthroplasty, Department of Orthopedic Surgery, Zuyderland Medical Center, Heerlen, The Netherlands.
Introduction: In 2020, 368 million people globally were affected by knee osteoarthritis, and prevalence is projected to increase with 74% by 2050. Relatively high rates of dissatisfactory results after total knee arthroplasty (TKA), as reported by approximately 20% of patients, may be caused by sub-optimal knee alignment and balancing. While mechanical alignment has traditionally been the goal, patient-specific alignment strategies are gaining interest.
View Article and Find Full Text PDFBone Jt Open
January 2025
Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong SAR, China.
Aims: Around the world, the emergence of robotic technology has improved surgical precision and accuracy in total knee arthroplasty (TKA). This territory-wide study compares the results of various robotic TKA (R-TKA) systems with those of conventional TKA (C-TKA) and computer-navigated TKA (N-TKA).
Methods: This is a retrospective study utilizing territory-wide data from the Clinical Data Analysis and Reporting System (CDARS).
Rev Bras Ortop (Sao Paulo)
November 2024
Universidade do Planalto Catarinense, Lages, SC, Brasil.
Popliteal artery entrapment syndrome has congenital and functional causes. It mostly affects young people. There are six types of popliteal artery entrapment syndrome.
View Article and Find Full Text PDFInt J Med Robot
December 2024
Tsiridis Orthopaedic Institute, ICAROS Clinic, Thessaloniki, Greece.
Background: We investigated the accuracy of targeted resection thickness in patients undergoing primary Total Knee Arthroplasty (TKA) using the ROSA robotic system.
Methods: Calliper measurements of the distal femur (DF), proximal tibia (PT), and posterior condyles (PC) were taken in 44 patients from June 2023 to January 2024.
Results: Planned and actual resection depth difference was 0.
Cureus
November 2024
Orthopedics, Clinics Hospital of Parana, Curitiba, BRA.
Introduction The anterior cruciate ligament is the most commonly injured ligament in the knee. Its injury is often evaluated with orthopedic tests during physical examination, but this turns out to be a subjective assessment. A knee arthrometer is a mechanical device developed in the 1970s to improve the diagnostic accuracy of anterior cruciate ligament injury.
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