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Meniscal forces and knee kinematics are affected by tibial slope modifying high tibial osteotomy.
Knee Surg Sports Traumatol Arthrosc
January 2025
Orthopaedic Robotics Laboratory, Departments of Bioengineering and Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Purpose: To quantify the effect of increasing the posterior tibial slope (PTS) on knee kinematics and the resultant medial and lateral meniscal forces.
Methods: In this controlled laboratory study, a 6 degrees of freedom (DOF) robotic testing system was used to apply external loading conditions to seven fresh-frozen human cadaveric knees: (1) 200-N axial compressive load, (2) 5-N m internal tibial +10-N m valgus torque and (3) 5-N m external tibial + 10-N m varus torque. Knee kinematics and the resultant medial and lateral meniscal forces were acquired for two PTS states: (1) native PTS and (2) increased PTS.
Novel model of the region of interest modified Mayo Adhesive Probability score.
World J Urol
January 2025
Department of Urology, National Cancer Center Hospital East, Chiba, Japan.
Purpose: To evaluate the association between the newly developed region of interest (ROI)-modified Mayo Adhesive Probability (MAP) score, in which stranding was re-evaluated by computed tomography (CT) number, for predicting operation time in robot-assisted partial nephrectomy (RAPN).
Methods: The study participants were 119 patients who underwent transperitoneal RAPN. With regard to stranding, ROIs were evaluated, and the mean CT numbers were assigned a score ranging from 0 to 3.
Robotically assisted mitral valve repair using the butterfly technique in a patient with a narrow chest.
J Cardiothorac Surg
January 2025
Department of Cardiovascular Surgery, Sapporo Cardio Vascular Clinic, 8-1, Kita 49 jyo, Higashi 16 jyo, Higashi-ku, Sapporo, Hokkaido, 007-0849, Japan.
Background: Minimally invasive cardiac surgery for mitral regurgitation is challenging in patients with narrow chests due to limited thoracic space. The butterfly technique can prevent systolic anterior motion in patients with degenerative mitral regurgitation and redundant posterior leaflets, but it is difficult to perform via minimally invasive cardiac surgery. Few reports have described mitral valve repair using the butterfly technique or in a narrow chest.
View Article and Find Full Text PDFA flat posterior cruciate ligament reconstruction restores native knee kinematics, comparable to a double-bundle reconstruction-A biomechanical robotic investigation.
Knee Surg Sports Traumatol Arthrosc
December 2024
Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Münster, Germany.
Purpose: To biomechanically evaluate a flat posterior cruciate ligament (PCL) reconstruction utilizing rectangular femoral bone tunnels.
Methods: Eight fresh-frozen human knee specimens were tested in a six-degrees-of-freedom robotic test setup. In each testing step, a force-controlled test protocol was performed, including 89 N posterior tibial translation (PTT) in neutral, internal and external rotation, from 0 to 90° of flexion.
The use of an imageless robotic system in revision of unicompartmental knee arthroplasty.
Knee Surg Sports Traumatol Arthrosc
December 2024
Sezione di Chirurgia Protesica ad Indirizzo Robotico, Unità di Traumatologia Dello Sport, UOC Ortopedia e Traumatologia, Brescia, Italy.
Purpose: The application of robotics in revision arthroplasty particularly from unicompartmental knee arthroplasty (UKA) to total knee arthroplasty (TKA), is underexplored. The purpose of this study is to describe the surgical technique of an imageless robotic system used in the revision of UKA to TKA and to evaluate short- to mid-term outcomes.
Methods: This prospective study includes 35 patients treated from May 2020 to July 2023.
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