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The combined talus and sustentaculum fracture: A case series.
Injury
October 2024
Department of Orthopaedic Surgery, University of Utah, Salt Lake City, UT, USA. Electronic address:
Article Synopsis
- * A study over 21 years found that many sustentaculum fractures were missed in initial radiographic assessments, particularly in high-energy trauma cases such as Hawkins II fractures.
- * The study concluded that while independent fixation of these fractures is common, it does not significantly impact the development of post-traumatic osteoarthritis or the need for re-operation.
Correction of progressive collapsing foot deformity classes after isolated arthroscopic subtalar arthrodesis.
Foot Ankle Surg
January 2025
Ramsay Santé Clinique de l'Union, Centre de Chirurgie de la Cheville et du Pied, Saint Jean, France.
Introduction: Subtalar osteoarthritis in the context of flatfoot (recently renamed Progressive Collapsing Foot Deformity (PCFD)) may be treated through subtalar joint (SJ) arthrodesis with anticipated consequences on three-dimensional bony configuration. This study investigates the correction of PCFD-related deformities achieved after Anterolateral Arthroscopic Subtalar Arthrodesis (ALAPSTA).
Methods: In this retrospective study, we evaluated pre- and post-operative (at 6 months) weight bearing computed tomography (WBCT) images of patients diagnosed with PCFD with a degenerated SJ (2 A according to PCFD classification) and/or peritalar subluxation (2D) with or without associated flexible midfoot and/or forefoot deformities (1B, 1 C and 1E) which underwent ALAPSTA as a standalone procedure between 2017 and 2020.
Posterior Vertebral Body Tethering: A Preliminary Study of a New Technique to Correct Lenke 5C Lumbar Curves in Adolescent Idiopathic Scoliosis.
Children (Basel)
January 2024
Department of Paediatric Orthopaedic Surgery, Chu Dijon, 21000 Dijon, France.
Vertebral body tethering has been approved for adolescent scoliosis correction. The usual approach is anterior, which is relatively easy for the thoracic spine, but becomes much more challenging for the lumbar curves, with a higher rate of complications. The purpose of this study was to describe and evaluate the first results of a new posterior vertebral body tethering (PVBT) technique using pedicle screws through a posterolateral Wiltse approach.
View Article and Find Full Text PDFAssessment of the tolerance angle for pedicle screw insertion.
Med Biol Eng Comput
April 2024
Laboratoire de Biomécanique Appliquée, UMRT24 IFSTTAR, Faculté de Medecine Secteur-Nord, Aix-Marseille University, University of Gustave Eiffel, LBA, Marseille, France.
Cannulation process intervenes before implantation of pedicle screw and depends on the surgeon's experience. A reliable experimental protocol has been developed for the characterization of the slipping behavior of the surgical tool on the cortical shell simulated by synthetic materials. Three types of synthetic foam samples with three different densities were tested using an MTS Acumen 3 A/T electrodynamic device with a tri-axis 3 kN Kistler load cell mounted on a surgical tool, moving at a constant rotational speed of 10° mm and performing a three-step cannulation test.
View Article and Find Full Text PDFSliding on cortical shell: Biomechanical characterization of the vertebral cannulation for pedicle screw insertion.
Clin Biomech (Bristol)
December 2023
Aix Marseille Univ. Univ Gustave Eiffel, LBA, Marseille, France. Electronic address:
Background: Pedicular screws pull-out has been well studied unlike their insertion. A need for characterizing cannulation before pedicle screw implantation is highlighted in literature and offers promising prospects for future intra-operation instrumentation. A reliable cannulation protocol for ex-vivo testing in swine and cadaver vertebrae is presented in this work to predict extra pedicular perforation.
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