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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11165498 | PMC |
| http://dx.doi.org/10.22603/ssrr.2023-0159 | DOI Listing |
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3D-Printed Prosthesis with an Articular Interface for Anatomical Acetabular Reconstruction After Type I + II (+ III) Internal Hemipelvectomy: Clinical Outcomes and Finite Element Analysis.
J Bone Joint Surg Am
October 2024
Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China.
Background: Pelvic reconstruction after type I + II (or type I + II + III) internal hemipelvectomy with extensive ilium removal is a great challenge. In an attempt to anatomically reconstruct the hip rotation center (HRC) and achieve a low mechanical failure rate, a custom-made, 3D-printed prosthesis with a porous articular interface was developed. The aim of this study was to investigate the clinical outcomes of patients treated with this prosthesis.
View Article and Find Full Text PDFMaintaining stability at the lumbosacral-pelvic region in adult spinal deformity surgery without sacroiliac joint fusion: are 4 pelvic screws superior to 2 pelvic screws?
J Neurosurg Spine
December 2024
1Department of Orthopaedic Surgery, The Och Spine Hospital/Columbia University Irving Medical Center, New York, New York.
Objective: The objective of this study was to compare a multiple pelvic screw fixation strategy (dual bilateral 4 pelvic screw fixation [4PvS]) with the use of single bilateral 2 pelvic screw fixation (2PvS), with the aim of addressing lumbosacral junction stability.
Methods: This analysis is a single-center, retrospective review of ASD patients treated between 2015 and 2021. All patients had a minimum 2-year follow-up and spinal fusion to the sacrum without sacroiliac fusion and met at least one radiographic and procedural criterion: pelvic incidence-lumbar lordosis ≥ 20°, T1 pelvic angle ≥ 20°, sagittal vertical axis ≥ 7.
Treatment of Type IV Fragility Fractures of Pelvis With Robotic-Assisted Minimally Invasive Triangular Fixation.
Orthop Surg
December 2024
Department of Orthopaedic Trauma, Tianjin Hospital, Tianjin University, Tianjin, China.
Objective: Type IV fragility fractures of pelvis (FFP IV) are serious and complicated and the treatment is challengeable. Robotic-assisted minimally invasive triangular fixation (RoboTFX) is a new and advanced technique to treat this injury. The objective of this report is to evaluate the clinical outcomes of FFP IV treated with RoboTFX.
View Article and Find Full Text PDFFinite element analysis of modified pedicle screw fixation and traditional lumbopelvic fixation for the treatment of sacroiliac joint disruption.
BMC Musculoskelet Disord
December 2024
Department of Orthopaedics, Seventh People's Hospital of Shanghai University of TCM, Shanghai, 200137, China.
Introduction: The modified pedicle screw fixation (PSF) was designed to simulate an integrated framework structure to ameliorate the resistance to vertical and shearing forces of the disrupted sacroiliac complex, and the aim of this study was to compare the biomechanical characteristics of PSF and traditional lumbopelvic fixation (LPF) for the treatment of sacroiliac joint disruption.
Methods: The digital computer simulation model of an intact spine-pelvis-femur complex with main ligaments was built from clinical images. A left sacroiliac joint disruption model was mimicked by removing the concerned ligaments.
Freehand Placement of a Transiliac-Transsacral Screw for Fixation of Posterior Pelvic Ring Injuries.
Orthop Surg
December 2024
Department of Orthopaedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Objective: There are many advantages to stabilize the posterior pelvic ring injuries with a transiliac-transsacral (TITS) screw percutaneously. To identify the correct entry point and insert a guidewire accurately for a TITS screw, we propose a method of specifying the optimal entry point, and introduce a technique of enabling freehand placement of a guidewire with fluoroscopic guidance.
Methods: In this retrospective study, 116 patients who underwent pelvic CT scans and pelvic lateral radiographs at our institution from January 2020 to April 2022 were enrolled.
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